Abstract
Orthogonal frequency division multiplexing-code division multiplex access (OFDM-CDMA) is one of the best candidates for the future broadband wireless multimedia communication systems. This paper proposes a novel channel estimation algorithm for OFDM-CDMA systems on the uplink. With reasonable constraint and well-designed preambles for each user, the DFT-based uplink channel estimation algorithm can achieve good estimation accuracy without sacrificing much system overhead. Computer simulation demonstrates effectiveness of this method and conclusion is followed.
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