Multilevel trellis coded modulations for the Rayleigh fading channel

作者: N. Seshadri , C.-E.W. Sundberg

DOI: 10.1109/26.237848

关键词:

摘要: The authors present coded 8-phase-shift-keyed (8-PSK) modulations for the Rayleigh fading channel. schemes are based on multilevel trellis-coded-modulation constructions and utilize maximum free Hamming distance binary convolutional codes as building blocks. A suboptimal multistage decoder that utilizes interstage interleaving iterative decoding is proposed evaluated. Examples constructed to show outperform best modified of Ungerboeck type due significantly higher implicit time diversity, yielding seven branches built-in whereas code yields four diversity a 64-state system. transmission delay higher, however. new can provide three levels unequal error protection when 8-PSK or 8-differential-phase-shift-keying (8-DPSK) used. They 10-14-dB channel signal-to-noise ratio gain over uncoded 4-DPSK at bit rate 10/sup -3/ modest complexity. >

参考文章(26)
T. Takata, S. Ujita, Y. Yamashita, T. Kasami, Shu Lin, Multi-stage Decoding For Multi-level Block Modulation Codes And Its Performance Analysis international symposium on information theory. pp. 1- 1 ,(1991) , 10.1109/ISIT.1991.695054
G.J. Pottie, D.P. Taylor, Multilevel codes based on partitioning IEEE Transactions on Information Theory. ,vol. 35, pp. 87- 98 ,(1989) , 10.1109/18.42180
E. Zehavi, 8-PSK trellis codes for a Rayleigh channel IEEE Transactions on Communications. ,vol. 40, pp. 873- 884 ,(1992) , 10.1109/26.141453
M.K. Simon, D. Divsalar, The performance of trellis coded multilevel DPSK on a fading mobile satellite channel IEEE Transactions on Vehicular Technology. ,vol. 37, pp. 78- 91 ,(1988) , 10.1109/25.9885
H. Imai, S. Hirakawa, A new multilevel coding method using error-correcting codes IEEE Transactions on Information Theory. ,vol. 23, pp. 371- 377 ,(1977) , 10.1109/TIT.1977.1055718
D. Divsalar, M.K. Simon, The design of trellis coded MPSK for fading channels: performance criteria IEEE Transactions on Communications. ,vol. 36, pp. 1004- 1012 ,(1988) , 10.1109/26.7512
K. Yamaguchi, H. Imai, Highly reliable multilevel channel coding system using binary convolutional codes Electronics Letters. ,vol. 23, pp. 939- 941 ,(1987) , 10.1049/EL:19870662
C. Schlegel, D.J. Costello, Bandwidth efficient coding for fading channels: code construction and performance analysis IEEE Journal on Selected Areas in Communications. ,vol. 7, pp. 1356- 1368 ,(1989) , 10.1109/49.44581
C.-E.W. Sundberg, J. Hagenauer, Hybrid trellis-coded 8/4-PSK modulation systems IEEE Transactions on Communications. ,vol. 38, pp. 602- 614 ,(1990) , 10.1109/26.54973