Title :
Analysis and performance comparison of the trellis coded and convolutional coded DS/SSMA systems in impulsive noise environment
Author :
Kim, K.S. ; Song, I. ; Park, S.I. ; Chung, B.-H.
Author_Institution :
Dept. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol., Seoul, South Korea
fDate :
8/1/1998 12:00:00 AM
Abstract :
The authors investigate the performance of two types of direct-sequence spread-spectrum multiple-access (DS/SSMA) systems in an impulsive noise, Rician fading environment. It is observed that it is possible to get some coding gain over uncoded systems except at low SNR and that additional coding gain can be obtained by using optimum asymmetric TCM. It is also shown that the performance of the DS/SSMA systems degrades more as the noise becomes more impulsive
Keywords :
Rician channels; convolutional codes; error statistics; fading; land mobile radio; multi-access systems; noise; phase shift keying; probability; pseudonoise codes; spread spectrum communication; trellis coded modulation; trellis codes; DS/SSMA; M-ary phase shift keying; PSK; Rician fading environment; bit error probability; coding gain; complexity; convolutional coded system; direct-sequence spread-spectrum multiple-access; impulsive noise environment; low SNR; mobile communications; optimum asymmetric TCM; performance; pseudonoise sequences; throughput; trellis coded system; uncoded systems;
Journal_Title :
Communications, IEE Proceedings-
DOI :
10.1049/ip-com:19982133
