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Linear OFDM Precoder Design for Multiuser Wireless Communications Using Cutoff Rate Optimization

Overview Multiuser wireless communications based on Orthogonal Frequency Division Multiplexing (OFDM) technique have two pronouncing advantages. First of all, the equalizer design at the receiver is facilitated by converting the frequency selective fading channel into parallel flat fading channels. Moreover, by providing each user with a non-intersecting fraction of the available number of subcarriers, Multiple-Access Interference (MAI) can be mitigated. However, a serious drawback in this communication scheme is that some subcarriers may be subject to deep fading in the frequency domain. In this paper, a linear precoding technique is proposed in order to solve this problem.

Further White Paper Details
Publisher	McMaster University	File Format	PDF
Date Published	August 2004
Format	White Papers
Topics	Wireless LAN, Mobile - Wireless Communications, Wireless

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