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stds-802-16: OFDM vs. Other Waveforms


1) Does anyone have any measured data or know of published papers that
proves that the OFDM waveform performs better than other waveforms (with a
good equalizer) in heavy multipath situations in either fixed and mobile,
broadband, 500 m to 15 km long, terrestrial links?  Several people have told
us that with a good equalizer, "conventional" waveforms such as QPSK obtain
nearly the same performance level but at a lower hardware cost.

2) Is there a "generally excepted" simulated propagation test case that we
could use for a side-by-side comparison of OFDM waveforms compared to
conventional waveforms?  I have heard that service providers have test cases
that they use to rate modem performance.



Thanks,

 --Mark


Mark McHenry
Shared Spectrum Company
8012 Birnam Wood Drive
McLean, Virginia 22102
mmchenry@sharedspectrum.com
Voice: 703-761-2818
FAX: 703-761-2818