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In this paper, we propose a channel estimation algorithm for the interleave-division multiple access systems (IDMA) system based on time-reverse (TR) technique (named as TDR-IDMA), which can accelerate the execution of multi-user detection (MUD) algorithm for IDMA systems. In the TDR-IDMA systems, the time-reversed version of channel impulse responses (TR-CIR) is used to perfume the pre-processing...
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