LONG HAUL MULTI- GIGABIT MICROWAVE: A NEW APPROACH An Advanced Technology Webinar From Aviat Networks 14 August 2013
WHAT WE WILL COVER TODAY The drivers for Trunking Microwave applications Typical Trunking Microwave characteristics Split-Mount Trunking Microwave Solution Reducing Trunking Total Cost of Ownership The Impact of Tower Outsourcing on TCO Conclusions and Q+A
TRAFFIC EXPLOSION
Commercial LTE Network Launches (cumulative) Source: GSA
How to meet expanding capacity demands?
In many cases fiber is just not an option: Too expensive Not practical Too vulnerable
Long Haul, or Trunking Microwave has formed the backbone of networks around the world.
HIGH CAPACITY, GUARANTEED Multi-channel microwave systems are key for providing guaranteed high capacity links for long-haul and aggregation applications New techniques can help, but don t fit the application: Higher modulations >1KQAM MIMO Ethernet Optimization, eg: Header Compression, etc Asymmetric links
SIMPLIFY REDUCE SITE COMPLEXITY SAVE DRAMATICALLY LOWER TCO SAFEGUARD ASSURED CAPACITY EXPANSION
ALL-INDOOR TRUNK RADIOS All-indoor trunking radios were originally designed for N+1 SDH applications Supported features generally lag the rest of the microwave market by >12 months Consist of a full equipment rack, with additional clearance needed for waveguide connections Connected to antenna(s) by semi-rigid, elliptical waveguide requires pressurization, dehydration and regular maintenance Antenna Waveguide Indoor Unit
4 Gbit/s 3 Gbit/s All-Indoor Trunking 2 Gbit/s 1 Gbit/s 10 GHz 20 GHz 30 GHz 40 GHz
4 Gbit/s 3 Gbit/s 2 Gbit/s All-Indoor Trunking Most effective for highcapacity applications between 2 and 4 Gbit/s 1 Gbit/s 10 GHz 20 GHz 30 GHz 40 GHz
PROBLEM IS, TRUNKING RADIOS ARE BIG REALLY BIG.
SO YOU LL NEEDS ONE OF THESE
ALONG WITH A LARGE GENERATOR (OR TWO) AND A LOT OF FUEL
AND ALSO ONE OR MORE OF THESE BEASTS
SPLIT-MOUNT ACCESS RADIOS Split-mount access radios can be used for high capacity applications Usually much more cost effective than indoor trunking radios Compact indoor unit, suitable for installation in outdoor cabinet Antenna Coupler ODU Coax Simple coax IDU-ODU connection However, combining multiple channels using couplers introduces significant path losses Indoor Unit
4 Gbit/s 3 Gbit/s 2 Gbit/s 1 Gbit/s Split-Mount Access 10 GHz 20 GHz 30 GHz 40 GHz
4 Gbit/s 3 Gbit/s Most effective for access applications <1Gbit/s 2 Gbit/s 1 Gbit/s Split-Mount Access 10 GHz 20 GHz 30 GHz 40 GHz
SPLIT-MOUNT TRUNKING RADIOS Combines the best of both worlds Environmentally sealed OBU, containing channel-specific filters and branching Low-loss combining of 4x ODUs onto a single- or dual-polarized antenna Mounted close to antenna no waveguide loss Antenna Waveguide Coax OBU ODU No pressurization needed ODUs easily removed and replaced for maintenance Indoor Unit
4 Gbit/s 3 Gbit/s 2 Gbit/s 1 Gbit/s Split- Mount Trunking Combining the best features of indoor trunking and splitmount access 10 GHz 20 GHz 30 GHz 40 GHz
SO THAT THIS CAN EASILY FIT INTO ONE OF THESE
OR EVEN THIS
ANOTHER STEP ALONG THE PATH TO SUSTAINABILITY
SYSTEM GAIN COMPARISON Split-Mount Trunking All-Indoor Trunking Split-Mount Access Tx Power Output dbm 29.5 31 28 Rx Threshold (10-6 BER) dbm -71.5-67 -70 Branching/Coupler Loss db 7.5 6.5 14 Antenna connection loss db 1 6 1 System Gain db 92.5 85.5 (-7dB) 83 (-9.5dB) * Based upon system configuration for 7GHz / 28MHz / 256QAM / 4+0 ACCP, No SD 7 db Advantage = one full antenna size per link
PURCHASE PRICE Installation Maintenance Training Upgrades Spectrum fees Power usage Tower costs Air Conditioning costs
VENDOR SELECTION CRITERIA TCO and other OPEX drivers rated highest, above purchase price 1 = most important Microwave Strategies and Vendor Leadership: Global Service Provider Survey, July 29, 2013
INFRASTRUCTURE OUTSOURCING/SHARING Network outsourcing or sharing becoming common for operators seeking to reduce costs and focus operations Active - spectrum, switches, antenna, etc Passive - tower, shelter, power supply, batteries, aircon, etc) Backhaul leased capacity (over fiber and/or microwave)
TCO COSTS - EXAMPLE CAPEX (Initial) Microwave Equipment Price Spares CAPEX (Recurring) S/W Upgrades for Capacity Expansion OPEX (Initial) LOS and Site Survey Site Development and Preparation Design (engineering services) Installation & commissioning Field corrective maintenance Repair and return (MLA fees) Spectrum License (Initial Free) OPEX (Recurring) Spectrum License Annual Fee Tower lease (x' antenna) Power, Cooling and Other Maintenance
Original Antenna Diameter, ft TCO SAVINGS BY REDUCING ANTENNA SIZE 3 4 6 8 10 0 10,000 20,000 30,000 40,000 5 Year TCO Saving, USD The larger the antenna, the bigger TCO Savings
MICROWAVE TCO - 5 LINKS, INCLUDING TOWER
MICROWAVE TCO - 1 LINK, TOWER EXCLUDED
MICROWAVE TCO - 1 LINK, WITH LEASED TOWER
MICROWAVE TCO - 1 LINK, WITH LEASED TOWER CAPEX IS ONLY A MINOR CONTRIBUTOR FOCUS ON OPEX IS MUCH MORE IMPORTANT!
COMPARATIVE TCO ANALYSIS CAPEX TCO OPEX
COMPARATIVE TCO ANALYSIS Major drivers: Antennas size and number Site footprint (container versus a cabinet) Power consumption Air conditioning Up to 30% TCO Saving with Split-Mount Trunking
SIMPLIFY REDUCE SITE COMPLEXITY Site cabinets, instead of shelters Reduced site power needs Smaller antennas Reduced tower loading No waveguide or pressurization
SAVE DRAMATICALLY LOWER TCO No need for expensive shelters Lower equipment CAPEX Higher system performance Site running costs slashed Smaller antennas = lower tower lease charges
SAFEGUARD ASSURED CAPACITY EXPANSION Simple capacity upgrades Guaranteed capacity Take advantage of the latest radio and Carrier Ethernet features Common platform with access radio
AVIAT STR 600 New Split-Mount Trunking Solution Outdoor Branching Unit (OBU) ODU600T high performance ODUs High system gain Simple sparing (one ODU per band) Now shipping in frequency bands from 5 to 11 GHz worldwide
IN CONCLUSION Split Mount Trunking combines the best of both worlds Ultra-high capacity links with the convenience of split-mount Enables dramatically lower costs Optimize assets in preparation for tower outsourcing Guaranteed capacity without compromise SIMPLIFY, SAVE, SAFEGUARD
Thankyou Questions?
W W W. A V I A T N E T W O R K S. C O M