RECEIVER AND RECEIVING METHOD WITH REDUCED COMPLEXITY FOR INTERLEAVE DIVISION MULTIPLE ACCESS (IDMA)

摘要

PROBLEM TO BE SOLVED: To provide a low-complexity receiver and receiving method to reduce processing power for reception.;SOLUTION: The receiver comprises an iterative multi-user detection circuit having a multi-user detector and a plurality of user-specific iterative processing circuits, wherein each user-specific iterative processing circuit is associated with a specific user and comprises: a decoder; a user-specific deinterleaver in a forward signal path from the multi-user detector to the decoder; a user-specific interleaver in a backward signal path from the decoder to the multi-user detector; a first node receiving a posteriori log-likelihood signal of the multi-user detector and an output signal of the interleaver; and a second node receiving an output signal of the deinterleaver and a priori log-likelihood signal from the decoder, wherein at least one of the decoders comprises a repetition decoder in the forward signal path directly connected to a repetition encoder in the backward signal path.;COPYRIGHT: (C)2007,JPO&INPIT