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An Improvement on LDPC Coded Queued Codes

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Executive Summary

The queued-code based on Low-Density Parity-Check (LDPC) codes, which exploit both the near Shannon-limit performance LDPC codes and the instantaneous Channel State Information (CSI), can provide excellent performance in the block fading channels. The existing work utilized the conventional random puncturing and repetition operation, which may lead to considerable performance loss due to the changed intrinsic connections of Parity-Check Matrix (PCM) for the receiver. In this paper, the authors present a Reversed Sequential Puncturing (RSP) scheme and a construction method with modified dual-diagonal structure for the LDPC coded queued-code.

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