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Cooperative communication enables distributed terminals with a single antenna to form a virtual multiple antenna system and benefits from diversity. In this paper quasi-cyclic LDPC codes are applied to both amplify-and-forward cooperative scheme and decode-and-forward scheme over Rayleigh fading half-duplex relay channel. Simulation results show excellent performance of quasi-cyclic LDPC codes with...
In this paper, a fast gauss eliminating algorithm for parity-check matrices of Quasi-Cyclic LDPC codes is proposed firstly. Enlightened by the gauss elimination, some Quasi-Cyclic square matrices with full rank are constructed. By proper matrix extension based on the full rank square matrices, we construct a kind of parity-check matrices whose column weights are either two or three. It is suitable...
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