Research on improved multilevel coding schemes over Rayleigh fading channels

The performance of an improved multilevel coding (MLC) system with intralevel interleaving and iterative multilevel decoding in Rayleigh fading channels is studied. BCH codes are selected as component codes and code rates are distributed according to "capacity rule". The Ungerboeck partitioning scheme and 8ASK modulation are used. The simulation results indicate that interleaving technique and iterative decoding can improve the performance of MLC system greatly.

[1]  Robert F. H. Fischer,et al.  Multilevel codes: Theoretical concepts and practical design rules , 1999, IEEE Trans. Inf. Theory.

[2]  Soheil I. Sayegh,et al.  A Class of Optimum Block Codes in Signal Space , 1986, IEEE Trans. Commun..

[3]  Zhigang Cao,et al.  Comparison of multilevel coded modulations with different decoding methods for AWGN and Rayleigh fading channels , 2000, 2000 IEEE International Conference on Communications. ICC 2000. Global Convergence Through Communications. Conference Record.

[4]  Hideki Imai,et al.  A new multilevel coding method using error-correcting codes , 1977, IEEE Trans. Inf. Theory.