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We propose iterative detection and decoding (IDD) algorithms with low-density parity-check (LDPC) codes for multiple-input multiple-output (MIMO) systems operating in block-fading and fast Rayleigh fading channels. Soft-input–soft-output minimum-mean-square-error (MMSE) receivers with successive interference cancelation are considered. In particular, we devise a novel strategy to improve the bit error...
Low-density parity-check (LDPC) codes offer excellent performance at competitive levels of complexity. Short block length LDPC codes avoid the large processing latency incurred by the large block lengths classically considered for this class of codes, making them a potential candidate for next generation wireless communications systems. In this paper, a novel informed dynamic scheduling (IDS) approach...
In this paper, we investigate rate-compatible (RC) short/ moderate length irregular low-density parity-check (LDPC) codes and propose three different novel puncturing schemes to determine the preferred puncturing positions so as to achieve less performance degradation. The first one is based on a short cycle counting algorithm as well as grouping variable nodes which have the equal length of short...
In this paper, we describe a novel turbo encoding and iterative decoding scheme based on the concept of switched interleaving and transmission of side information. The proposed system consists of an innovative structure for turbo encoding that allows the refinement of the code words produced with the use of a codebook with different and appropriately designed interleavers. We also develop two search...
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