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Backhaul Bash: Part 1
March 15, 2006: 10:00 AM

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By now, we all understand the concepts behind the WiMAX wireless backhaul.  We're ready to deploy, but guess what?  With a dizzying array of products coming from different manufacturers all promising the world, where does one start?  Is "plug and pray" a wise decision?  Better yet, learn "how stuff actually works" when reviewing the results of side-by-side feature comparisons from CWLab on the capabilities of the various WiMAX backhaul and bridging solutions available on the market today.

Radios Reviewed

  1. Alvarion BreezeNet B14
  2. Ceragon FibeAir 4800 / Radwin WinLink 1000
  3. Orthogon Spectra / Motorola Canopy 300 Mb Backhaul
  4. Orthogon Gemini / Motorola Canopy 60 Mb Backhaul
  5. Motorola Canopy Cyclone 20 Mb Backhaul
  6. RedLine AN-50e / Alvarion Linkblaster
  7. Smartbridges Nexus
  8. Trango Atlas
  9. Trango TLink10
  10. Solectek Skyway 7000
  11. WaveRider NCL5000
  12. Proxim Terabridge 5845 (Link CX)
  13. Proxim TeraMax PtP (KarlNet Marquee)
  14. Proxim Tsunami MP.11a
  15. Tranzeo TR-5800
  16. Mikrotik Nstream (Wisp-Router OEM)
  17. Airaya WirelessGRID

Physical Implementation Analysis Criteria

  • Outdoor (PoE) vs. Split (IF) vs. Indoor (Coax)
  • Radio Connectors (Output / Input)
  • Mounting Methods (Threaded / U-bolts)
  • Alignment Aids (LED / Audio / RSSI)
  • Power (120 VAC / DC)
  • Recovery Capabilities (Hard vs Soft)

RF PHY Analysis Criteria

  • PHY (Single Carrier vs OFDM 11a vs OFDM+)
  • Channel Bandwidth (MHz)
  • Frequency of Operation (2.4, 4.9, 5.3, 5.4, 5.8)
  • Enhanced PHY Characteristics

MAC Layer Analysis Criteria

  • Duplexing (Frequency/ Adaptive Time / Fixed Time)
  • IEE 802.3 (Flow Control / Bandwidth Shaping / QoS)
  • Error Correction (ARQ, Adaptive Modulation)
  • Additional MAC Characteristics
  • Enhanced Layer 3 Functionality

Operational Analysis Criteria

  • Channel Resolution (1, 5, 10, 20 MHz)
  • TPC (Manual & Automatic)
  • Encryption Support
  • ACCS / DFS
  • Configuration Rollback
  • Additional Operational Characteristics

Management Analysis Criteria

  • Management Access (TelNet, Web, Client, Serial, SNMP)
  • Access Levels
  • Firmware Storage (Multi / Single)
  • System Diagnostics & Reporting
  • Spectrum Analysis Tools
  • System Analysis Tools
  • Additional Management Characteristics

Part II -- Real-World Performance Review


 

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