Low-density parity-check codes for FFH/BFSK systems with partial-band noise jamming
Proceedings of the 2006 international conference on Wireless communications and mobile computing
Near-capacity coding for discrete multitone systems with impulse noise
EURASIP Journal on Applied Signal Processing
EURASIP Journal on Applied Signal Processing
Comparison of LDPC decoding algorithms with and without estimation of noise variance
Mobility '06 Proceedings of the 3rd international conference on Mobile technology, applications & systems
Differentially encoded LDPC codes-part II: general case and code optimization
EURASIP Journal on Wireless Communications and Networking - Advances in Error Control Coding Techniques
Differentially encoded LDPC codes-part I: special case of product accumulate codes
EURASIP Journal on Wireless Communications and Networking - Advances in Error Control Coding Techniques
Doubly generalized LDPC codes over the AWGN channel
IEEE Transactions on Communications
Construction of non-binary quasi-cyclic LDPC codes by arrays and array dispersions
IEEE Transactions on Communications
CCNC'09 Proceedings of the 6th IEEE Conference on Consumer Communications and Networking Conference
Linear LLR approximation for iterative decoding on wireless channels
IEEE Transactions on Communications
Performance analysis of LDPC codes over shallow water acoustic channels
WiCOM'09 Proceedings of the 5th International Conference on Wireless communications, networking and mobile computing
Density evolution for nonbinary LDPC codes under Gaussian approximation
IEEE Transactions on Information Theory
Near-Shannon-limit linear-time-encodable nonbinary irregular LDPC codes
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
A mutual information approach for comparing LLR metrics for iterative decoders
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Performance gain of space-time-frequency concatenated LDPC codes
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Low-density parity-check codes for nonergodic block-fading channels
IEEE Transactions on Information Theory
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A numerical method has been presented to determine the noise thresholds of low density parity-check (LDPC) codes that employ the message passing decoding algorithm on the additive white Gaussian noise (AWGN) channel. In this paper, we apply the technique to the uncorrelated flat Rayleigh fading channel. Using a nonlinear code optimization technique, we optimize irregular LDPC codes for such a channel. The thresholds of the optimized irregular LDPC codes are very close to the Shannon limit for this channel. For example, at rate one-half, the optimized irregular LDPC code has a threshold only 0.07 dB away from the capacity of the channel. Furthermore, we compare simulated performance of the optimized irregular LDPC codes and turbo codes on a land mobile channel, and the results indicate that at a block size of 3072, irregular LDPC codes can outperform turbo codes over a wide range of mobile speeds