Title :
A novel symbol/sequence TCM for DS/SSMA system in mobile radio channel
Author :
Yang, Fengfang ; Bi, Guangguo ; Xu, Zongze ; Leung, Shu Hung
Author_Institution :
Dept. of Electron. Eng., Nanjing Univ. of Aeronaut. & Astronaut., China
Abstract :
In this paper a novel kind of multidimensional symbol/sequence TCM based on TCM of lower coding rate is constructed. The redundancy of this new kind of TCM is provided not only by its modulated symbol sequence but also from its output PN sequences as well. The performance of DS/SSMA systems with symbol/sequence TCM over flat Rayleigh fading channel has been studied theoretically. Simulation results also show that the performance of this system has been improved in comparison with that of DS/SSMA systems with conventional TCM under the same conditions
Keywords :
Rayleigh channels; mobile radio; multi-access systems; pseudonoise codes; spread spectrum communication; trellis coded modulation; DS-SSMA system; flat Rayleigh fading channel; mobile radio channel; modulated symbol sequence; multidimensional symbol/sequence TCM; output PN sequences; simulation results; Bismuth; Communication systems; Distributed control; Fading; Land mobile radio; Multiaccess communication; Multidimensional systems; OFDM modulation; Redundancy; Signal mapping;
Conference_Titel :
Spread Spectrum Techniques and Applications, 1998. Proceedings., 1998 IEEE 5th International Symposium on
Conference_Location :
Sun City
Print_ISBN :
0-7803-4281-X
DOI :
10.1109/ISSSTA.1998.726186
