Politecnico di Milano Facoltà di Ingegneria dell Informazione. Wireless Networks. Prof. Antonio Capone

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1 Politecico di Milao Facoltà di Igegeria dell Iformazioe Wireless Networks Prof. Atoio Capoe

2 Politecico di Milao Facoltà di Igegeria dell Iformazioe 1 Itroductio Wireless Networks Prof. Atoio Capoe

3 Teacher o Prof. Atoio Capoe o Office: Dip. di Elettroica e Iformazioe 3rd floor Room 335 o Tel: ( ) 3449 o capoe@elet.polimi.it o Web page: o Office hours: Tuesday A. Capoe: Wireless Networks 3

4 Course orgaizatio o Wireless Networks is a itegrated course (10 credits) that icludes two courses of 5 credits: Wireless Iteret (WI) Mobile Radio Networks (MRN) o The two courses will ru i parallel to avoid problems with the lecture schedule: o 9 hours i the weekly schedule to be split amog the two courses: Tuesday 15:15-18:15 S.1.6 (MRN) Wedesday 8:15-10:15 D0.3 (WI) Thursday 8:15-10:15 L (WI) Friday 10:15-12:15 L (MRN) Note that the first part of the course is shared amog MRN ad WI A. Capoe: Wireless Networks 4

5 Class otes ad books o Papers ad other material available o the course web page o Course slides o Liks to material available o the web pages of the two courses A. Capoe: Wireless Networks 5

6 Course home page A. Capoe: Wireless Networks 6

7 Goal of the course: Mobile Radio Networks o Provide you the kowledge o the techology ad etwork protocols of mobile radio etworks, as well as o desig ad dimesioig methodology o Mobile radio etworks Cellular architectures Radio plaig ad etworks desig Sigalig ad cotrol GSMS/GPRS UMTS LTE A. Capoe: Wireless Networks 7

8 Goal of the course: Wireless Iteret o Distributed wireless etworks for Iteret access Techologies ad protocols for wireless access etworks (WiFi, WiMax, Bluetooth, Zigbee) Methodologies for the aalysis of mechaisms ad protocols for the access to wireless medium Distributed algorithms for the cotrol ad maagemet of wireless etworks Architectures ad protocols for wireless multi-hop etworks (ad hoc ad sesor etworks) Hads-o project o ad hoc etworks A. Capoe: Wireless Networks 8

9 Pre-requisites o Mobile radio etworks: Commuicatio etworks basics, TCP/IP protocols, queuig theory basics (*), optimizatio basics (*). o Wireless Iteret: Commuicatio etworks basics, TCP/IP protocols, queuig theory basics (*). A. Capoe: Wireless Networks 9

10 Exams o Exams are writte ad oral o I same cases (typically with a writte exams score betwee 21 ad 27) the oral exam ca be skipped (it's my decisio you eed to check o the pdf file if a fial mark is proposed without oral). o Also studets ca ask for a oral exam (but writte exam score must be >= 15) o Notes o the orgaizatio: Writte exam: same dates same time same room for all courses A. Capoe: Wireless Networks 10

11 o MRN: Exams Writte exam: up to 30 poits (duratio 1:45) Additioal topic: up to 2 poits Oral exam: +/- 4 poits o WI: Writte exam: up to 30 poits (duratio 1:45) Additioal topic: up to 2 poits Oral exam: +/- 4 poits o WN: Writte exam: up to 30poits (duratio 2:15h) Additioal topic: up to 2 poits Oral exam: +/- 4 poits A. Capoe: Wireless Networks 11

12 Course overview A. Capoe: Wireless Networks 12

13 Phoes A. Capoe: Wireless Networks 13

14 Mobile phoes A. Capoe: Wireless Networks 14

15 WiFi everywhere A. Capoe: Wireless Networks 15

16 Cellular subscribers A. Capoe: Wireless Networks 16

17 Mobile vs fixed vs iteret Per 100 ihabitats o 96.8 mobile subscribers o 43.4 iteret users o 10.8 fixed-broadbad o 47.2 mobile-broadbad Source: ITU Data: 2015 A. Capoe: Wireless Networks 17

18 Mobile subscribers by coutry Source: World Bak Data: 2016 A. Capoe: Wireless Networks 18

19 Network plaig tools Mai Plaig Tools: o o o o o o o o o Aircom Asset Metum Plaet Atoll FORSK ATDI WiProp EDX Sigal Pro CelPla Siradel Pathloss Mai Optimizatio Egies o o Actix Capesso A. Capoe: Wireless Networks 19

20 Network maagemet & cotrol A. Capoe: Wireless Networks 20

21 Course program: MRN o Basic cocepts Characterizatio of the mobile radio chael Digital trasmissio o the wireless chael Voice codig o Itroductio to mobile radio etworks Network architecture ad fuctioal elemets Multiple access techiques for the radio chael The cocept of cellular coverage The cocept of frequecy reuse Mobility maagemet: cell selectio, locatio maagemet, hadover A. Capoe: Wireless Networks 21

22 Course program: MRN o Capacity ad radio plaig Mathematical models ad algorithms for coverage optimizatio Mathematical models ad algorithms for the static frequecy assigmet Dyamic chael allocatio techiques A. Capoe: Wireless Networks 22

23 Course program: MRN o Performace aalysis Models for the capacity estimatio of CDMA systems Teletraffic models for the performace evaluatio at call level Models for the dimesioig of cells ad locatio areas A. Capoe: Wireless Networks 23

24 Course program: MRN o GSM Architecture ad iterfaces Physical ad logical chaels Trasport i the fixed etwork Mobility maagemet: localizatio ad hadover Telephoe sigalig Sigalig etwork architecture, sigalig protocols, etwork databases, call maagemet procedures, mobility maagemet procedures A. Capoe: Wireless Networks 24

25 Course program: MRN o GPRS Network architecture ad protocols Radio iterface Medium Access Cotrol (MAC) Mobility maagemet Itercoectio to public ad private IP etworks A. Capoe: Wireless Networks 25

26 Course program: MRN o UMTS Radio access Spreadig ad codig procedures for the W-CDMA Sigalig ad trasport chaels Power cotrol procedures High Speed Packet data services Core etwork A. Capoe: Wireless Networks 26

27 Course program: MRN o Log Term Evolutio (LTE) System architecture Radio iterface (LTE) Core etwork (EPC) VOIP over LTE A. Capoe: Wireless Networks 27

28 Course program: WI o Techologies of wireless etworks Wi-Fi (Architecture ad protocols of WLAN, IEEE specificatios, multiple access, frame format, distributio system, mobility maagemet, quality of service, mesh topologies), Bluetooth (Bluetooth specificatios, picocells ad scatteret, chael access, statio states, etwork formatio ad sigalig), WMAN (IEEE WiMax stadards, etwork architecture, Poit-To-Multipoit, MESH, chael access ad schedulig) Zigbee (IEEE ad Zigbee alliace specificatios, star-tree-mesh topologies, multiple access schemes to the wireless chael), A. Capoe: Wireless Networks 28

29 Course program: WI o Network ad trasport layer. Mechaisms for the mobility maagemet at etwork layer (Mobile IP, micro-mobility, applicatio layer mobility). TCP over wireless (Maagemet of chael impairmets, ed-to-ed approaches, idirect TCP, lik layer approaches, aalytical models). A. Capoe: Wireless Networks 29

30 Course program: WI o Multiple access to the wireless chael (models for the aalysis) Aloha protocol (ifiite populatio model, fiite populatio model, sigle-buffer model, stabilizatio algorithms) CSMA (Carrier Sese Multiple Access), CSMA/CD (CSMA with Collisio Detect), CSMA/CA (CSMA with Collisio Avoidace), Pollig schemes (models for calculatig the waitig time, exhaustive service, gated service, limited service ad roud robi) Schedulig schemes for the radio access (sigalig the queue status, chael state depedet schedulig, multi-chael schedulig). A. Capoe: Wireless Networks 30

31 Course program: WI o Ad hoc etworks Basics of ad-hoc ad MESH etworks. Medium access cotrol schemes for ad hoc etworks Routig for ad-hoc etworks (proactive routig, reactive routig, geographic routig, hybrid schemes). Broadcast ad multicast i ad-hoc etworks A. Capoe: Wireless Networks 31

32 Course program: WI o Sesor etworks (basic cocepts oly) Applicatio scearios ad differeces with ad hoc etworks Multiple access schemes ad activity period maagemet Eergy efficiet routig Plaig of sesor etworks A. Capoe: Wireless Networks 32

33 o Course program Had-o activities (prof. Ilario Filippii) Itroductio to Netkit Basic Topics Routig (OLSR e AODV) Filterig ad Shapig (iptables ad tc) Projects Netkit A. Capoe: Wireless Networks 33

34 Wireless power A. Capoe: Wireless Networks 34

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