Full Duplex Radios. Sachin Katti Kumu Networks & Stanford University 4/17/2014 1
|
|
- Lucinda Pope
- 5 years ago
- Views:
Transcription
1 Full Duplex Radios Sachin Katti Kumu Networks & Stanford University 4/17/2014 1
2 It is generally not possible for radios to receive and transmit on the same frequency band because of the interference that results. - Andrea Goldsmith, Wireless Communications, Cambridge Press, Why are radios half duplex? Radio 1 Radio 2 TX RX RX TX 4/17/2014 2
3 It is generally not possible for radios to receive and transmit on the same frequency band because of the interference that results. - Andrea Goldsmith, Wireless Communications, Cambridge Press, Why are radios half duplex? Radio 1 Radio 2 TX RX RX TX Self-Interference is a hundred billion times (110dB+) stronger than the received signal 4/17/2014 3
4 Isn t this easy to solve? After all we know the interfering signal, why can t we just subtract it? 4/17/2014 4
5 Do we know what we are transmitting? Signal Signal T Sent Sent TX PA Mixer DAC x 4/17/2014 5
6 Do we know what we are transmitting? Signal Signal T Sent Sent TX PA Mixer DAC x Centered at Carrier Freq (2.45GHz) 4/17/2014 6
7 Do we know what we are transmitting? Signal Signal T Sent Sent TX PA Mixer DAC x Centered at Carrier Freq (2.45GHz) 4/17/2014 7
8 Power in dbm If you were to cancel, how much do we need? Transmitted Signal 20 dbm Average Power -10 dbm Harmonics -20 dbm Transmit noise Cancel entire 110 db to reach noise floor Cancel 70 db Tx noise to reach noise floor Cancelled Signal -80 dbm Harmonics Cancel 70 db in Analog in such a way to eliminate TX noise Cancel residual in digital to reach noise floor -90 dbm Receiver Noise floor Takeaways: Require 110dB of total cancellation, of which at least 70dB has to eliminate transmitter noise in analog. 4/17/2014 8
9 Contributions We have invented in-band single antenna full duplex radios Self-Interference cancellation that eliminates everything to the noise floor Practically achieves close to expected theoretical 2x throughput increase T Circulator +it +δt TX RF Frontend RX RF Frontend 4/17/2014 9
10 Contributions We have invented in-band single antenna full duplex radios Self-Interference cancellation that eliminates everything to the noise floor Practically achieves close to expected theoretical 2x throughput increase T Circulator Analog Cancellation Eliminates all Tx noise and Protects ADC from saturating Σ +it +δt Algorithms & circuits to estimate transceiver distortion and cancel self interference Hybrid (analog & digital) design with RF cancellation circuit and DSP algorithms TX RF Frontend Digital Cancellation Eliminates all Linear and Non-Linear Distortion (Harmonics) RX RF Frontend Σ 4/17/
11 Mixed RF/Digital Design: Analog + Digital Cancellation T T Circulator (-15dB) R+iT T TX RF Frontend RX RF Frontend Digital Baseband 4/17/
12 Analog RF Cancellation T R T Circulator (-15dB) R+iT T εt RF Cancellation Circuit it +δt TX RF Frontend Adaptive Algorithms RX RF Frontend Digital Baseband 4/17/
13 Analog RF Cancellation εt d1 a1 d2 a2 d3 RF Cancellation a3 d4 Circuit a4 d5 a5 d6 a6 d7 a7 d8 a8 it TX RF Frontend Adaptive Algorithms RX RF Frontend 4/17/
14 Analog RF Cancellation εt d1 d2 d3 d4 d5 d6 d7 d8 a1 a2 a3 a4 a5 a6 a7 a8 it TX RF Frontend Adaptive Algorithms RX RF Frontend 4/17/
15 Analog Theory Intuition: Branch Delays N delay attenuation branches d3 a3 d1 a1 d2 a2 Σ interference signal d4 a4 fixed delays control algorithm d1 d d2 time (delay) Delays are fundamentally related to sampling theory 4/17/
16 Analog Theory Intuition: Branch Delays N delay attenuation branches d3 a3 d1 a1 d2 a2 Σ interference signal d4 a4 fixed delays control algorithm d3 d1 d d2 time (delay) d4 Delays are fundamentally related to sampling theory 4/17/
17 Estimating Branch Attenuation How do we fix attenuation ranges? d1 d d2 First branch pair: positive 4/17/
18 Estimating Branch Attenuation How do we fix attenuation ranges? a1 a2 d1 d d2 First branch pair: positive 4/17/
19 Estimating Branch Attenuation How do we fix attenuation ranges? a1 a2 d3 d1 d d2 d4 Second branch pair (negative) 4/17/
20 Estimating Branch Attenuation How do we fix attenuation ranges? a1 a2 d3 d1 d d2 d4 a3 a4 Second branch pair (negative) 4/17/
21 Estimating Branch Attenuation Adaptation to environmental changes: Assumption d known a1 a2 d3 a3 d1 d d2 a4 d4 4/17/
22 Estimating Branch Attenuation Adaptation to environmental changes a2 a1 d3 d4 a3 d1 d d2 a4 4/17/
23 Estimating Branch Attenuation Adaptation to environmental changes a1 a2 d3 a3 d1 d d2 a4 d4 4/17/
24 Digital Baseband Cancellation T T Σ isolator (-15dB) + it T TX RF Frontend RF Cancellation Circuit Adaptive Algorithms +δt RX RF Frontend Digital Baseband Cancellation Eliminates 2 nd + Order Non-Linearities (e.g. Intermod Products, LO leakage, IQ imbalance) 4/17/
25 Digital Baseband Cancellation Σ RF Cancellation Circuit TX RF Frontend Adaptive Algorithms RX RF Frontend Digital Baseband Cancellation Eliminates 2 nd + Order Non-Linearities (e.g. Intermod Products, LO leakage, IQ imbalance) 4/17/
26 Digital Self-Interference Cancellation Challenge: Need to cancel main signal as well as higher order harmonics upto the 11 th order Prior approaches only cancel main signal, ignore hamonics Naïve approach to non-linearities: Needs to estimate ~1200 coefficients, would require a large number of training symbols & hardware resources, infeasible in practice Our approach: Compact and fast digital self-interference cancellation algorithm (needs to only estimate ~200 coefficients, works with existing WiFi packet format) 4/17/
27 Evaluation Q1: Does it work with commodity radios? Goal: Build a full duplex radio using a cheap $2 COTS Maxim transceiver Challenge: Extremely high transmitter noise and nonlinearities 20MHz BW (transceiver limitation) 25dBm max TX power WiFi n PHY
28 Power in dbm Evaluation Q1: Does it work with commodity radios? WARP 20 Mhz Commodity transceiver Freq in Ghz Analog >70dB Digital 72 db 38 db + ~40dB Tx Signal Residual Signal after AC Residual Signal after DC Noise Floor Total = >110dB 4/17/
29 Power in dbm Evaluation Q1: Does it work with commodity radios? Commodity transceiver Tunes to environmental changes within 8us, needs to be re-tuned every 100ms Freq in Ghz Analog >70dB WARP 20 Mhz Digital 72 db 38 db + ~40dB Tx Signal Residual Signal after AC Residual Signal after DC Noise Floor Total = >110dB 4/17/
30 How do we compare against prior designs? 20 MHz Bandwidth. WiFi OFDM waveform, 25 dbm TX power Compared Approaches Our Design Balun Cancellation (Mobicom 11) Extra-Tx Chain Design (Sigcomm 11, Asilomar 11) 4/17/
31 How do we compare against prior designs? 20 MHz Bandwidth. WiFi OFDM waveform, 25 dbm TX power Compared Approaches Our Design 110 Balun Cancellation (Mobicom 11) Extra-Tx Chain Design (Sigcomm 11, Asilomar 10) Cancellation in (db) /17/
32 How do we compare against prior designs? 20 MHz Bandwidth. WiFi OFDM waveform, 25 dbm TX power Compared Approaches Cancellation in (db) Our Design 110 ~1 Balun Cancellation (Mobicom 11) Extra-Tx Chain Design (Sigcomm 11, Asilomar 10) Self-interference residue over noise floor (db) Minimum SNR required for receiving a packet > Self-interference residue over noise floor 4/17/
33 Evaluation Q2: Does that translate to doubling of throughput in practice? Testbed: Indoor office noisy environment, various locations for the two full duplex radios. Compare throughput achieved in full duplex with that achieved in half duplex Full duplex implemented using our approach, and prior balun and extra TX chain based approaches Gain = Throughput of FD Throughput of HD 4/17/
34 CDF Evaluation Q2: Does that translate to doubling of throughput in practice? 1 Balun Cancellation Extra Transmitter Our Design Worse than standard Half Duplex 1.97x median gain Gain vs Half Duplex Our design achieves the theoretical throughput doubling 4/17/
35 Full Duplex Radios Self-interference cancellation is broadly applicable Transmitted Self-Interference In-Band Full Duplex Double capacity Received Signal Channel 1 Channel 2 Received Signal Transmitted Self-Interference Channel 1 Channel 2 Adaptive Frequency Division Full Duplex (FDD) Flexibly decide which channels to transmit & receive on 4/17/2014 Proprietary and Confidential 35
36 Full Duplex Everywhere Applicable To a Host of Problems PtP and PtMP Backhaul Doubles spectral efficiency, and mitigate interference in unlicensed bands WiFi Access Dense coverage by avoiding interference between adjacent bands Mobile Devices World phones supporting any FDD channel pairs with adaptive duplexers LTE Access High performance Relay Node. Doubles spectral efficiency for TD-LTE. Proprietary and Confidential 36
37 To Conclude Key contribution: Cancellation design that eliminates all selfinterference to the noise floor Full duplex radio is one application of this interference cancellation technique. Widely applicable (Picasso, IMDShield, WiVi, Dhwani, ) Emphasizes the need for an interdisciplinary approach that combines RF circuit design, signal processing and communication algorithm design 4/17/
Full Duplex Radios. Emily McMilin. Dinesh Bharadia. Sachin Katti ABSTRACT. Categories and Subject Descriptors 1. INTRODUCTION
Full Duplex Radios Dinesh Bharadia Stanford University dineshb@stanford.edu Emily McMilin Stanford University emcmilin@stanford.edu Sachin Katti Stanford University skatti@stanford.edu ABSTRACT This paper
More informationFull Duplex Radios. Daniel J. Steffey
Full Duplex Radios Daniel J. Steffey Source Full Duplex Radios* ACM SIGCOMM 2013 Dinesh Bharadia Emily McMilin Sachin Katti *All source information and graphics/charts 2 Problem It is generally not possible
More informationWireless Communication
Wireless Communication Systems @CS.NCTU Lecture 14: Full-Duplex Communications Instructor: Kate Ching-Ju Lin ( 林靖茹 ) 1 Outline What s full-duplex Self-Interference Cancellation Full-duplex and Half-duplex
More informationThe Performance Analysis of Full-Duplex System Linjun Wu
International Conference on Electromechanical Control Technology and Transportation (ICECTT 2015) The Performance Analysis of Full-Duplex System Linjun Wu College of Information Science and Engineering,
More informationDigitally-Controlled RF Self- Interference Canceller for Full-Duplex Radios
Digitally-Controlled RF Self- nterference Canceller for Full-Duplex Radios Joose Tamminen 1, Matias Turunen 1, Dani Korpi 1, Timo Huusari 2, Yang-Seok Choi 2, Shilpa Talwar 2, and Mikko Valkama 1 1 Dept.
More informationCombining filters and self-interference cancellation for mixer-first receivers in Full Duplex and Frequency-Division Duplex transceiver systems
Combining filters and self-interference cancellation for mixer-first receivers in Full Duplex and Frequency-Division Duplex transceiver systems Gert-Jan Groot Wassink, bachelor student Electrical Engineering
More informationAdvanced Self-Interference Cancellation and Multiantenna Techniques for Full-Duplex Radios
Advanced Self-Interference Cancellation and Multiantenna Techniques for Full-Duplex Radios Dani Korpi 1, Sathya Venkatasubramanian 2, Taneli Riihonen 2, Lauri Anttila 1, Sergei Tretyakov 2, Mikko Valkama
More informationFractional Delay Filter Based Wideband Self- Interference Cancellation
, pp.22-27 http://dx.doi.org/10.14257/astl.2013 Fractional Delay Filter Based Wideband Self- Interference Cancellation Hao Liu The National Communication Lab. The University of Electronic Science and Technology
More informationFrom Antenna to Bits:
From Antenna to Bits: Wireless System Design with MATLAB and Simulink Cynthia Cudicini Application Engineering Manager MathWorks cynthia.cudicini@mathworks.fr 1 Innovations in the World of Wireless Everything
More informationTSEK38 Radio Frequency Transceiver Design: Project work B
TSEK38 Project Work: Task specification A 1(15) TSEK38 Radio Frequency Transceiver Design: Project work B Course home page: Course responsible: http://www.isy.liu.se/en/edu/kurs/tsek38/ Ted Johansson (ted.johansson@liu.se)
More information(some) Device Localization, Mobility Management and 5G RAN Perspectives
(some) Device Localization, Mobility Management and 5G RAN Perspectives Mikko Valkama Tampere University of Technology Finland mikko.e.valkama@tut.fi +358408490756 December 16th, 2016 TAKE-5 and TUT, shortly
More informationOn Self-interference Suppression Methods for Low-complexity Full-duplex MIMO
On Self-interference Suppression Methods for Low-complexity Full-duplex MIMO Alexios Balatsoukas-Stimming, Pavle Belanovic, Konstantinos Alexandris, Andreas Burg Telecommunications Circuits Laboratory
More informationExperiment-Driven Characterization of Full-Duplex Wireless Systems
Experiment-Driven Characterization of Full-Duplex Wireless Systems Melissa Duarte Advisor: Ashutosh Sabhawal Department of ECE Rice University August 04 2011 1 Full-Duplex Wireless Node 1 Node 2 Same time
More informationSpotFi: Decimeter Level Localization using WiFi. Manikanta Kotaru, Kiran Joshi, Dinesh Bharadia, Sachin Katti Stanford University
SpotFi: Decimeter Level Localization using WiFi Manikanta Kotaru, Kiran Joshi, Dinesh Bharadia, Sachin Katti Stanford University Applications of Indoor Localization 2 Targeted Location Based Advertising
More informationAdvanced Architectures for Self- Interference Cancellation in Full-Duplex Radios: Algorithms and Measurements
Advanced Architectures for Self- Interference Cancellation in Full-Duplex Radios: Algorithms and Measurements Dani Korpi, Mona AghababaeeTafreshi, Mauno Piililä, Lauri Anttila, Mikko Valkama Department
More informationSDR-BASED TEST BENCH TO EVALUATE ANALOG CANCELLATION TECHNIQUES FOR IN-BAND FULL-DUPLEX TRANSCEIVER
SDR-BASED TEST BENCH TO EVALUATE ANALOG CANCELLATION TECHNIQUES FOR IN-BAND FULL-DUPLEX TRANSCEIVER Patrick Rosson, David Dassonville, Xavier Popon, Sylvie Mayrargue CEA-Leti Minatec Campus Cleen Workshop,
More informationA 1.7-to-2.2GHz Full-Duplex Transceiver System with >50dB Self-Interference Cancellation over 42MHz Bandwidth
A 1.7-to-2.2GHz Full-Duplex Transceiver System with >50dB Self-Interference Cancellation Tong Zhang, Ali Najafi, Chenxin Su, Jacques C. Rudell University of Washington, Seattle Feb. 8, 2017 International
More informationReference Receiver Based Digital Self-Interference Cancellation in MIMO Full-Duplex Transceivers
Reference Receiver Based Digital Self-Interference Cancellation in MIMO Full-Duplex Transceivers Dani Korpi, Lauri Anttila, and Mikko Valkama Tampere University of Technology, Department of Electronics
More informationEmpowering Full-Duplex Wireless Communication by Exploiting Directional Diversity
Empowering Full-Duplex Wireless Communication by Exploiting Directional Diversity Evan Everett, Melissa Duarte, Chris Dick, and Ashutosh Sabharwal Abstract The use of directional antennas in wireless networks
More informationDigitally-Assisted RF-Analog Self Interference Cancellation for Wideband Full-Duplex Radios
Digitally-Assisted RF-Analog Self Interference Cancellation for Wideband Full-Duplex Radios by Kimberley Brynn King A thesis presented to the University of Waterloo in fulfillment of the thesis requirement
More informationCo-existence. DECT/CAT-iq vs. other wireless technologies from a HW perspective
Co-existence DECT/CAT-iq vs. other wireless technologies from a HW perspective Abstract: This White Paper addresses three different co-existence issues (blocking, sideband interference, and inter-modulation)
More informationDivision Free Duplex in Small Form Factors. Leo Laughlin,ChunqingZhang, Mark Beach, Kevin Morris, and John Haine
Division Free Duplex in Small Form Factors Leo Laughlin,ChunqingZhang, Mark Beach, Kevin Morris, and John Haine Outline Duplexing Electrical Balance duplexers Active self-interference cancellation Electrical
More informationFEASIBILITY STUDY ON FULL-DUPLEX WIRELESS MILLIMETER-WAVE SYSTEMS. University of California, Irvine, CA Samsung Research America, Dallas, TX
2014 IEEE International Conference on Acoustic, Speech and Signal Processing (ICASSP) FEASIBILITY STUDY ON FULL-DUPLEX WIRELESS MILLIMETER-WAVE SYSTEMS Liangbin Li Kaushik Josiam Rakesh Taori University
More informationRF Basics 15/11/2013
27 RF Basics 15/11/2013 Basic Terminology 1/2 dbm is a measure of RF Power referred to 1 mw (0 dbm) 10mW(10dBm), 500 mw (27dBm) PER Packet Error Rate [%] percentage of the packets not successfully received
More informationELT Receiver Architectures and Signal Processing Exam Requirements and Model Questions 2018
TUT/ICE 1 ELT-44006 Receiver Architectures and Signal Processing Exam Requirements and Model Questions 2018 General idea of these Model Questions is to highlight the central knowledge expected to be known
More informationFull Duplex CMOS Transceiver with On-Chip Self-Interference Cancelation. Seyyed Amir Ayati
Full Duplex CMOS Transceiver with On-Chip Self-Interference Cancelation by Seyyed Amir Ayati A Dissertation Presented in Partial Fulfillment of the Requirements for the Degree Doctor of Philosophy Approved
More informationflexicon.ee.columbia.edu Harish Krishnaswamy, Gil Zussman, Jin Zhou, Jelena (Marašević) Diakonikolas, Tolga Dinc, Negar Reiskarimian, Tingjun Chen
Full-Duplex in a Hand-held Device - From Fundamental Physics to Complex Integrated Circuits, Systems and Networks: An Overview of the Columbia FlexICoN project Harish Krishnaswamy, Gil Zussman, Jin Zhou,
More informationMaximizing MIMO Effectiveness by Multiplying WLAN Radios x3
ATHEROS COMMUNICATIONS, INC. Maximizing MIMO Effectiveness by Multiplying WLAN Radios x3 By Winston Sun, Ph.D. Member of Technical Staff May 2006 Introduction The recent approval of the draft 802.11n specification
More informationTestData Summary of 5.2GHz WLAN Direct Conversion RF Transceiver Board
Page 1 of 16 ========================================================================================= TestData Summary of 5.2GHz WLAN Direct Conversion RF Transceiver Board =========================================================================================
More informationAsymmetric Full-Duplex with Contiguous Downlink Carrier Aggregation
Asymmetric Full-Duplex with Contiguous Downlink Carrier Aggregation Dani Korpi, Lauri Anttila, and Mikko Valkama Department of Electronics and Communications Engineering, Tampere University of Technology,
More informationHY448 Sample Problems
HY448 Sample Problems 10 November 2014 These sample problems include the material in the lectures and the guided lab exercises. 1 Part 1 1.1 Combining logarithmic quantities A carrier signal with power
More informationDigital Self-Interference Cancellation under Nonideal RF Components: Advanced Algorithms and Measured Performance
Digital Self-Interference Cancellation under Nonideal RF Components: Advanced Algorithms and Measured Performance Dani Korpi, Timo Huusari, Yang-Seok Choi, Lauri Anttila, Shilpa Talwar, and Mikko Valkama
More informationDesign and Characterization of a Full-duplex. Multi-antenna System for WiFi networks
Design and Characterization of a Full-duplex 1 Multi-antenna System for WiFi networks Melissa Duarte, Ashutosh Sabharwal, Vaneet Aggarwal, Rittwik Jana, K. K. Ramakrishnan, Christopher Rice and N. K. Shankaranayanan
More information2015 The MathWorks, Inc. 1
2015 The MathWorks, Inc. 1 What s Behind 5G Wireless Communications? 서기환과장 2015 The MathWorks, Inc. 2 Agenda 5G goals and requirements Modeling and simulating key 5G technologies Release 15: Enhanced Mobile
More informationIn-band Full Duplex Radios and System Performance
January 25 In-band Full Duplex Radios and System Performance Date: 25--2 doc.: IEEE 82.-5-43--ax Authors: Name Affiliations Address Phone email Kapseok Chang 28 Gajeong-ro, Yuseonggu, Daejeon 35-7, Korea
More informationSession 3. CMOS RF IC Design Principles
Session 3 CMOS RF IC Design Principles Session Delivered by: D. Varun 1 Session Topics Standards RF wireless communications Multi standard RF transceivers RF front end architectures Frequency down conversion
More informationFull-duplex Wireless: From Experiments to Theory
Full-duplex Wireless: From Experiments to Theory Achaleshwar Sahai, Melissa Duarte #, Evan Everett, Jingwen Bai, Gaurav Patel, Chris Dick* and Ashu Sabharwal Department of ECE Rice University # Now at
More information1 Introduction to Highly Integrated and Tunable RF Receiver Front Ends
1 Introduction to Highly Integrated and Tunable RF Receiver Front Ends 1.1 Introduction With the ever-increasing demand for instant access to data over wideband communication channels, the quest for a
More informationSome Radio Implementation Challenges in 3G-LTE Context
1 (12) Dirty-RF Theme Some Radio Implementation Challenges in 3G-LTE Context Dr. Mikko Valkama Tampere University of Technology Institute of Communications Engineering mikko.e.valkama@tut.fi 2 (21) General
More informationTSEK02: Radio Electronics Lecture 8: RX Nonlinearity Issues, Demodulation. Ted Johansson, EKS, ISY
TSEK02: Radio Electronics Lecture 8: RX Nonlinearity Issues, Demodulation Ted Johansson, EKS, ISY RX Nonlinearity Issues: 2.2, 2.4 Demodulation: not in the book 2 RX nonlinearities System Nonlinearity
More informationRF Receiver Hardware Design
RF Receiver Hardware Design Bill Sward bsward@rtlogic.com February 18, 2011 Topics Customer Requirements Communication link environment Performance Parameters/Metrics Frequency Conversion Architectures
More informationOn the Capacity Regions of Single-Channel and Multi-Channel Full-Duplex Links. Jelena Marašević and Gil Zussman EE department, Columbia University
On the Capacity Regions of Single-Channel and Multi-Channel Full-Duplex Links Jelena Marašević and Gil Zussman EE department, Columbia University MobiHoc 16, July 216 Full-Duplex Wireless (Same channel)
More informationELT Radio Architectures and Signal Processing. Motivation, Some Background & Scope
Introduction ELT-44007/Intro/1 ELT-44007 Radio Architectures and Signal Processing Motivation, Some Background & Scope Markku Renfors Department of Electronics and Communications Engineering Tampere University
More informationElectro-Optical Performance Requirements for Direct Transmission of 5G RF over Fiber
Electro-Optical Performance Requirements for Direct Transmission of 5G RF over Fiber Revised 10/25/2017 Presented by APIC Corporation 5800 Uplander Way Culver City, CA 90230 www.apichip.com 1 sales@apichip.com
More informationReceiver Design. Prof. Tzong-Lin Wu EMC Laboratory Department of Electrical Engineering National Taiwan University 2011/2/21
Receiver Design Prof. Tzong-Lin Wu EMC Laboratory Department of Electrical Engineering National Taiwan University 2011/2/21 MW & RF Design / Prof. T. -L. Wu 1 The receiver mush be very sensitive to -110dBm
More informationTSEK02: Radio Electronics Lecture 8: RX Nonlinearity Issues, Demodulation. Ted Johansson, EKS, ISY
TSEK02: Radio Electronics Lecture 8: RX Nonlinearity Issues, Demodulation Ted Johansson, EKS, ISY 2 RX Nonlinearity Issues, Demodulation RX nonlinearities (parts of 2.2) System Nonlinearity Sensitivity
More informationmm Wave Communications J Klutto Milleth CEWiT
mm Wave Communications J Klutto Milleth CEWiT Technology Options for Future Identification of new spectrum LTE extendable up to 60 GHz mm Wave Communications Handling large bandwidths Full duplexing on
More informationPinPoint Localizing Interfering Radios
PinPoint Localizing Interfering Radios Kiran Joshi, Steven Hong, Sachin Katti Stanford University April 4, 2012 1 Interference Degrades Wireless Network Performance AP1 AP3 AP2 Network Interference AP4
More informationMASTER S THESIS RF SYSTEM MODEL FOR IN-BAND FULL DUPLEX COMMUNICATIONS. Professor Aarno Pärssinen
DEGREE PROGRAMME IN WIRELESS COMMUNICATIONS ENGINEERING MASTER S THESIS RF SYSTEM MODEL FOR IN-BAND FULL DUPLEX COMMUNICATIONS Author Supervisor Second Supervisor Parisa Nouri Professor Aarno Pärssinen
More informationWhat s Behind 5G Wireless Communications?
What s Behind 5G Wireless Communications? Marc Barberis 2015 The MathWorks, Inc. 1 Agenda 5G goals and requirements Modeling and simulating key 5G technologies Release 15: Enhanced Mobile Broadband IoT
More informationGC5325 Wideband Digital Predistortion Transmit IC Solution. David Brubaker Product Line Manager Radio Products February 2009
GC5325 Wideband Digital Predistortion Transmit IC Solution David Brubaker Product Line Manager Radio Products February 2009 Broadband Wireless Standards drive BTS design complexity Increased subscriber
More informationReconfigurable 6 GHz Vector Signal Transceiver with I/Q Interface
SPECIFICATIONS PXIe-5645 Reconfigurable 6 GHz Vector Signal Transceiver with I/Q Interface Contents Definitions...2 Conditions... 3 Frequency...4 Frequency Settling Time... 4 Internal Frequency Reference...
More informationUC Riverside UC Riverside Electronic Theses and Dissertations
UC Riverside UC Riverside Electronic Theses and Dissertations Title Self-Interference Cancellation in Full Duplex Radios and LTE-Unlicensed Permalink https://escholarship.org/uc/item/26c9291n Author Mauskar,
More informationTSEK38: Radio Frequency Transceiver Design Lecture 3: Superheterodyne TRX design
TSEK38: Radio Frequency Transceiver Design Lecture 3: Superheterodyne TRX design Ted Johansson, ISY ted.johansson@liu.se 2 Outline of lecture 3 Introduction RF TRX architectures (3) Superheterodyne architecture
More informationBringing Multi-Antenna Gain to Energy-Constrained Wireless Devices Sanjib Sur, Teng Wei, Xinyu Zhang
Bringing Multi-Antenna Gain to Energy-Constrained Wireless Devices Sanjib Sur, Teng Wei, Xinyu Zhang University of Wisconsin - Madison 1 Power Consumption of MIMO MIMO boosts the wireless throughput by
More informationLTE: System Specifications and Their Impact on RF & Base Band Circuits Application Note
LTE: System Specifications and Their Impact on RF & Base Band Circuits Application Note Products: R&S FSW R&S SMU R&S SFU R&S FSV R&S SMJ R&S FSUP RF physical layer specifications (such as 3GPP TS36.104)
More informationAnalog Devices Welcomes Hittite Microwave Corporation NO CONTENT ON THE ATTACHED DOCUMENT HAS CHANGED
Analog Devices Welcomes Hittite Microwave Corporation NO CONTENT ON THE ATTACHED DOCUMENT HAS CHANGED www.analog.com www.hittite.com THIS PAGE INTENTIONALLY LEFT BLANK 17 Product Application Notes Introduction
More informationWideband Receiver for Communications Receiver or Spectrum Analysis Usage: A Comparison of Superheterodyne to Quadrature Down Conversion
A Comparison of Superheterodyne to Quadrature Down Conversion Tony Manicone, Vanteon Corporation There are many different system architectures which can be used in the design of High Frequency wideband
More informationFULL-DUPLEX (FD) radio technology, where the devices. Full-Duplex Transceiver System Calculations: Analysis of ADC and Linearity Challenges
FULL-DUPLEX TRANSCEIVER SYSTEM CALCULATIONS: ANALYSIS OF ADC AND LINEARITY CHALLENGES 1 Full-Duplex Transceiver System Calculations: Analysis of ADC and Linearity Challenges Dani Korpi, Taneli Riihonen,
More informationFully integrated UHF RFID mobile reader with power amplifiers using System-in-Package (SiP)
Fully integrated UHF RFID mobile reader with power amplifiers using System-in-Package (SiP) Hyemin Yang 1, Jongmoon Kim 2, Franklin Bien 3, and Jongsoo Lee 1a) 1 School of Information and Communications,
More informationAnalog and RF circuit techniques in nanometer CMOS
Analog and RF circuit techniques in nanometer CMOS Bram Nauta University of Twente The Netherlands http://icd.ewi.utwente.nl b.nauta@utwente.nl UNIVERSITY OF TWENTE. Outline Introduction Balun-LNA-Mixer
More informationRADIO RECEIVERS ECE 3103 WIRELESS COMMUNICATION SYSTEMS
RADIO RECEIVERS ECE 3103 WIRELESS COMMUNICATION SYSTEMS FUNCTIONS OF A RADIO RECEIVER The main functions of a radio receiver are: 1. To intercept the RF signal by using the receiver antenna 2. Select the
More informationFull-Duplex Communications for Wireless Links with Asymmetric Capacity Requirements
Full-Duplex Communications for Wireless Links with Asymmetric Capacity Requirements Orion Afisiadis, Andrew C. M. Austin, Alexios Balatsoukas-Stimming, and Andreas Burg Telecommunication Circuits Laboratory,
More informationVrije Universiteit Brussel
Vrije Universiteit Brussel In-Band Full-Duplex Transceiver Technology for 5G Mobile Networks Debaillie, Björn; van Liempd, Barend; Hershberg, Benjamin; Craninckx, Jan; Rikkinen, Kari; van den broek, Dirk-Jan;
More informationFairness and Delay in Heterogeneous Half- and Full-Duplex Wireless Networks
Fairness and Delay in Heterogeneous Half- and Full-Duplex Wireless Networks Tingjun Chen *, Jelena Diakonikolas, Javad Ghaderi *, and Gil Zussman * * Electrical Engineering, Columbia University Simons
More informationAnalog Self-Interference Cancellation with Automatic Gain Control for Full-Duplex Transceivers
Analog Self-Interference Cancellation with Automatic Gain Control for Full-Duplex Transceivers Visa Tapio, Marko Sonkki and Markku Juntti Centre for Wireless Communications University of Oulu, Finland
More informationDynamic Spectrum Sharing in 5G Wireless Networks with Full-Duplex Technology: Recent Advances and Research Challenges
IEEE COMMUNICATIONS SURVEYS & TUTORIALS (DRAFT) 1 Dynamic Spectrum Sharing in 5G Wireless Networks with Full-Duplex Technology: Recent Advances and Research Challenges Shree Krishna Sharma, Member, IEEE,
More informationKeysight Technologies Gustaaf Sutorius
1 1 mmw Seminar 2017 Keysight Technologies 18-04-2018 Gustaaf Sutorius Introduction & Agenda Why mmwave Industry needs & mmwave challenges Generating mmwave Analyzing mmwave Characterizing mmwave components
More informationRadio Receiver Architectures and Analysis
Radio Receiver Architectures and Analysis Robert Wilson December 6, 01 Abstract This article discusses some common receiver architectures and analyzes some of the impairments that apply to each. 1 Contents
More information5G System Concept Seminar. RF towards 5G. Researchers: Tommi Tuovinen, Nuutti Tervo & Aarno Pärssinen
04.02.2016 @ 5G System Concept Seminar RF towards 5G Researchers: Tommi Tuovinen, Nuutti Tervo & Aarno Pärssinen 5.2.2016 2 Outline 5G challenges for RF Key RF system assumptions Channel SNR and related
More informationWireless Communication Systems: Implementation perspective
Wireless Communication Systems: Implementation perspective Course aims To provide an introduction to wireless communications models with an emphasis on real-life systems To investigate a major wireless
More informationAn All CMOS, 2.4 GHz, Fully Adaptive, Scalable, Frequency Hopped Transceiver
An All CMOS, 2.4 GHz, Fully Adaptive, Scalable, Frequency Hopped Transceiver Farbod Behbahani John Leete Alexandre Kral Shahrzad Tadjpour Karapet Khanoyan Paul J. Chang Hooman Darabi Maryam Rofougaran
More informationDoodle Labs Prism-WiFi Transceiver NM-4900 High Performance COFDM/MIMO Broadband Transceiver with minipcie
Doodle Labs Prism-WiFi Transceiver NM-4900 High Performance COFDM/MIMO Broadband Transceiver with minipcie Prism-WiFi Transceiver Overview Doodle Labs Prism-WiFi are frequency shifted long range Industrial
More informationAnalog and Digital Self-interference Cancellation in Full-Duplex MIMO-OFDM Transceivers with Limited Resolution in A/D Conversion
Analog and Digital Self-interference Cancellation in Full-Duplex MIMO- Transceivers with Limited Resolution in A/D Conversion Taneli Riihonen and Risto Wichman Aalto University School of Electrical Engineering,
More informationNonlinear Self-Interference Cancellation in MIMO Full-Duplex Transceivers under Crosstalk
Korpi et al. RESEARCH Nonlinear Self-Interference Cancellation in MIMO Full-Duplex Transceivers under Crosstalk Dani Korpi *, Lauri Anttila and Mikko Valkama Abstract This paper presents a novel digital
More informationBeamforming for 4.9G/5G Networks
Beamforming for 4.9G/5G Networks Exploiting Massive MIMO and Active Antenna Technologies White Paper Contents 1. Executive summary 3 2. Introduction 3 3. Beamforming benefits below 6 GHz 5 4. Field performance
More informationFull-Duplex Mobile Device Pushing the Limits
SUBMITTED FOR REVIEW 1 Full-Duplex Mobile Device Pushing the Limits Dani Korpi, Joose Tamminen, Matias Turunen, Timo Huusari, Yang-Seok Choi, Lauri Anttila, Shilpa Talwar, and Mikko Valkama Abstract In
More informationDoes The Radio Even Matter? - Transceiver Characterization Testing Framework
Does The Radio Even Matter? - Transceiver Characterization Testing Framework TRAVIS COLLINS, PHD ROBIN GETZ 2017 Analog Devices, Inc. All rights reserved. 1 Which cost least? 3 2017 Analog Devices, Inc.
More informationmm-wave Transceiver Challenges for the 5G and 60GHz Standards Prof. Emanuel Cohen Technion
mm-wave Transceiver Challenges for the 5G and 60GHz Standards Prof. Emanuel Cohen Technion November 11, 11, 2015 2015 1 mm-wave advantage Why is mm-wave interesting now? Available Spectrum 7 GHz of virtually
More informationFULL-DUPLEX (FD) radio technology, where the devices
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS 1 Full-Duplex Transceiver System Calculations: Analysis of ADC and Linearity Challenges Dani Korpi, Taneli Riihonen, Member, IEEE, Ville Syrjälä, Member, IEEE,
More informationUsing a design-to-test capability for LTE MIMO (Part 1 of 2)
Using a design-to-test capability for LTE MIMO (Part 1 of 2) System-level simulation helps engineers gain valuable insight into the design sensitivities of Long Term Evolution (LTE) Multiple-Input Multiple-Output
More informationRF/IF Terminology and Specs
RF/IF Terminology and Specs Contributors: Brad Brannon John Greichen Leo McHugh Eamon Nash Eberhard Brunner 1 Terminology LNA - Low-Noise Amplifier. A specialized amplifier to boost the very small received
More informationA GNU Radio-based Full Duplex Radio System
A GNU Radio-based Full Duplex Radio System Adam Parower The Aerospace Corporation September 13, 2017 2017 The Aerospace Corporation Agenda Theory: Full-Duplex What is Full Duplex? The Problem The Solution
More informationISSCC 2003 / SESSION 20 / WIRELESS LOCAL AREA NETWORKING / PAPER 20.5
ISSCC 2003 / SESSION 20 / WIRELESS LOCAL AREA NETWORKING / PAPER 20.5 20.5 A 2.4GHz CMOS Transceiver and Baseband Processor Chipset for 802.11b Wireless LAN Application George Chien, Weishi Feng, Yungping
More informationRFID Reader Frontends for a Dual-Frequency (13 MHz and 868 MHz) Rapid Prototyping Environment
RFID Reader Frontends for a Dual-Frequency (13 MHz and 868 MHz) Rapid Prototyping Environment Robert Langwieser, Michael Fischer and Prof. Dr. Arpad L. Scholtz Vienna University of Technology www.tuwien.ac.at
More informationAll Beamforming Solutions Are Not Equal
White Paper All Beamforming Solutions Are Not Equal Executive Summary This white paper compares and contrasts the two major implementations of beamforming found in the market today: Switched array beamforming
More informationAdaptive Nonlinear Digital Self-interference Cancellation for Mobile Inband Full-Duplex Radio: Algorithms and RF Measurements
Adaptive Nonlinear Digital Self-interference Cancellation for Mobile Inband Full-Duplex Radio: Algorithms and RF Measurements Dani Korpi, Yang-Seok Choi, Timo Huusari, Lauri Anttila, Shilpa Talwar, and
More informationDoodle Labs Prism-WiFi Transceiver NM-4965 High Performance COFDM/MIMO Broadband Transceiver with minipcie
Doodle Labs Prism-WiFi Transceiver NM-4965 High Performance COFDM/MIMO Broadband Transceiver with minipcie Prism-WiFi Transceiver Overview Doodle Labs Prism-WiFi are frequency shifted long range Industrial
More informationWhat is New in Wireless System Design
What is New in Wireless System Design Houman Zarrinkoub, PhD. houmanz@mathworks.com 2015 The MathWorks, Inc. 1 Agenda Landscape of Wireless Design Our Wireless Initiatives Antenna-to-Bit simulation Smart
More informationBaseband and RF Hardware Impairments in Full-Duplex Wireless Systems: Experimental Characterisation and Suppression
Balatsouas-Stimming et al. RESEARCH Baseband and RF Hardware Impairments in Full-Duplex Wireless Systems: Experimental Characterisation and Suppression Alexios Balatsouas-Stimming, Andrew C. M. Austin,
More informationBeamforming on mobile devices: A first study
Beamforming on mobile devices: A first study Hang Yu, Lin Zhong, Ashutosh Sabharwal, David Kao http://www.recg.org Two invariants for wireless Spectrum is scarce Hardware is cheap and getting cheaper 2
More informationAlleviating RF Transmit Signal Corruption in Wireless Data Systems
Alleviating RF Transmit Signal Corruption in Wireless Data Systems By Ryan Pratt Introduction In high speed wireless data systems, it is common to see RF Transmit signal corruption limit the power level
More informationADI 2006 RF Seminar. Chapter II RF/IF Components and Specifications for Receivers
ADI 2006 RF Seminar Chapter II RF/IF Components and Specifications for Receivers 1 RF/IF Components and Specifications for Receivers Fixed Gain and Variable Gain Amplifiers IQ Demodulators Analog-to-Digital
More information802.11ax Design Challenges. Mani Krishnan Venkatachari
802.11ax Design Challenges Mani Krishnan Venkatachari Wi-Fi: An integral part of the wireless landscape At the center of connected home Opening new frontiers for wireless connectivity Wireless Display
More informationMITIGATING INTERFERENCE ON AN OUTDOOR RANGE
MITIGATING INTERFERENCE ON AN OUTDOOR RANGE Roger Dygert MI Technologies Suwanee, GA 30024 rdygert@mi-technologies.com ABSTRACT Making measurements on an outdoor range can be challenging for many reasons,
More information1 Interference Cancellation
Massachusetts Institute of Technology Department of Electrical Engineering and Computer Science 6.829 Fall 2017 Problem Set 1 September 19, 2017 This problem set has 7 questions, each with several parts.
More informationINTRODUCTION TO TRANSCEIVER DESIGN ECE3103 ADVANCED TELECOMMUNICATION SYSTEMS
INTRODUCTION TO TRANSCEIVER DESIGN ECE3103 ADVANCED TELECOMMUNICATION SYSTEMS FUNCTIONS OF A TRANSMITTER The basic functions of a transmitter are: a) up-conversion: move signal to desired RF carrier frequency.
More informationMuhammad Nazmul Islam, Senior Engineer Qualcomm Technologies, Inc. December 2015
Muhammad Nazmul Islam, Senior Engineer Qualcomm Technologies, Inc. December 2015 2015 Qualcomm Technologies, Inc. All rights reserved. 1 This presentation addresses potential use cases and views on characteristics
More information5G Antenna System Characteristics and Integration in Mobile Devices Sub 6 GHz and Milli-meter Wave Design Issues
5G Antenna System Characteristics and Integration in Mobile Devices Sub 6 GHz and Milli-meter Wave Design Issues November 2017 About Ethertronics Leader in advanced antenna system technology and products
More informationRF, HIL and Radar Test
RF, HIL and Radar Test Abhay Samant Marketing Manager India, Russia and Arabia RF Hardware In The Loop Complex Radio Environment Components of RF HIL Communication Modems Channel Simulation GPS Simulation
More information