Magazine Article

System for Processing Coded OFDM Under Doppler and Fading

TBMG-206

08/01/2005

Abstract
Content

An advanced communication system has been proposed for transmitting and receiving coded digital data conveyed as a form of quadrature amplitude modulation (QAM) on orthogonal frequency-division multiplexing (OFDM) signals in the presence of such adverse propagation channel effects as large dynamic Doppler shifts and frequency-selective multipath fading. Such adverse channel effects are typical of data communications between mobile units or between mobile and stationary units (e.g., telemetric transmissions from aircraft to ground stations). The proposed system incorporates novel signal processing techniques intended to reduce the losses associated with adverse channel effects while maintaining compatibility with the high-speed physical layer specifications defined for wireless localarea networks (LANs) as the standard 802.11a of the Institute of Electrical and Electronics Engineers (IEEE 802.11a).

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Citation
"System for Processing Coded OFDM Under Doppler and Fading," Mobility Engineering, August 1, 2005.
Additional Details
Publisher
Published
Aug 1, 2005
Product Code
TBMG-206
Content Type
Magazine Article
Language
English