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Regular network low density parity check (NLDPC) codes are proposed for the multiple-access relay channel with two sources, one relay and one destination. A three-layer Tanner graph is used to describe the code, where the coded bits from the two sources and the coded bits from the relay are separated into two different layers. This makes it possible to design the code more flexibly. A three-layer...
A low-complexity two-user turbo decoding scheme for two-way relay network is proposed. In the relay, the superimposed packets have to be decoded to the arithmetic summation of two source packets based on the sum trellis. In the sum trellis, there are some symmetrical states, especially when the sources use identical component codes. These symmetrical states provide same information to the turbo decoder...
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