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Difference between 802.16 vs 802.16a vs 802.16d vs 802.16e

This page compares 802.16 vs 802.16a vs 802.16d vs 802.16e and mentions difference between 802.16, 802.16a, 802.16d and 802.16e.

Specifications 802.16 802.16a 802.16d 802.16e
Frequency of operation 10 to 66 GHz 2 to 11 GHz Less than 6 GHz Less than 6 GHz
Mode of operation LOS Non LOS Non LOS Non LOS
Data rate 32 to 134 Mbps, (28 MHz BW channel) less than 70 or 100 Mbps, (20 MHz BW channel) upto 70 Mbps with no mobility 60-70 Mbps with mobility
mobility fixed fixed fixed less than and equal to 75 Miles/Hour
Modulation QPSK, 16QAM, 64QAM 256point FFT with QPSK, 16QAM, 64QAM, 256QAM same as 16a same as 16a with OFDMA modulation scheme with variable FFT sizes
Cell radius 1 to 3 miles 3 to 5 miles 3 to 5 miles 1 to 3 miles
Channel Bandwidth 20/25/28 MHz selectable 1.25 to 20 MHz 3.5 MHz, 7 MHz 1.25 to 28 MHz , OFDMA modulation scheme

802.16, 802.16a, 802.16d, 802.16e related links

WiMAX tutorial  What is wimax?   802.16 WiMAX standards  WiMAX Terminology  WiMAX Frame Structure  WiMAX Network Architecture  WiMAX Physical layer  WiMAX MAC layer protocol  WiMAX Protocol Stack  Advanced WiMAX 802.16m  Fixed WiMAX versus Mobile WiMAX  wibro versus mobile wimax 

What is Difference between

Circuit Switching vs Packet switching
Packet Switching vs Message switching
hub Vs. switch  TCP vs UDP 

RF and Wireless Terminologies

SATELLITE  RF  Antenna  Avionics  Wireless  LiFi vs WiFi  MiFi vs WiFi  BPSK vs QPSK  BJT vs FET  PDH vs SDH 

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