Parallel concatenated Gallager codes for CDMA applications
نویسندگان
چکیده
We present a class of concatenated codes called Parallel Concatenated Gallager Codes (PCGC) using Low-Density Parity-Check (LDPC) component codes. We report simulation results for PCGC that outperform those for comparable LDPC codes both in Additive White Gaussian Noise (AWGN) and ßat Rayleigh fading channels. The good performance of PCGC increases the capacity of CDMA systems while the reduced encoding and decoding complexity of such codes keep the signal processing delays within a reasonable limit.
منابع مشابه
On the design, simulation and analysis of parallel concatenated Gallager codes
We present a framework for designing a class of concatenated codes based on Low-Density Parity-Check component codes that we call Parallel Concatenated Gallager Codes (PCGCs). The iterative decoding trajectories technique is used to explain the performance of PCGCs. Simulation results show an enhanced performance in the practicalEb/N0 range in both AWGN and ßat Rayleigh fading channels. The r...
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