Title :
BER bounds of P2-TCM-coded SSMA systems over fading channels
Author :
Choo, T.P. ; Li, K.H. ; Dubey, V.K.
Author_Institution :
Sch. of Electr. & Electron. Eng., Nanyang Technol. Inst., Singapore
Abstract :
This paper considers a direct-sequence (DS) spread-spectrum multiple access (SSMA) communication system with punctured pragmatic trellis coded modulation (P2-TCM) coding. The system operates in the presence of additive white Gaussian noise (AWGN) and may experience either Rayleigh or Rician channel fading. In particular, the generalized transfer function bound (GTFB) is used to obtain the bit error rate (BER) estimates and system performance is compared with that of pragmatic TCM (P-TCM) coded system. Numerical results show that both systems have comparable performance in an AWGN environment. However, the P2-TCM codes show better performance compared to the P-TCM codes in fading channels
Keywords :
Gaussian channels; Rayleigh channels; Rician channels; fading; mobile communication; multi-access systems; pseudonoise codes; spread spectrum communication; trellis coded modulation; AWGN environment; BER bounds; P-TCM codes; P2-TCM-coded SSMA systems; Rayleigh channel fading; Rician channel fading; additive white Gaussian noise; bit error rate estimates; direct-sequence spread-spectrum multiple access communication system; fading channels; generalized transfer function bound; punctured pragmatic trellis coded modulation coding; system performance; AWGN; Additive white noise; Bit error rate; Fading; Modulation coding; Rayleigh channels; Rician channels; Spread spectrum communication; System performance; Transfer functions;
Conference_Titel :
Spread Spectrum Techniques and Applications Proceedings, 1996., IEEE 4th International Symposium on
Conference_Location :
Mainz
Print_ISBN :
0-7803-3567-8
DOI :
10.1109/ISSSTA.1996.563496
