Title :
The DS/SSMA systems using trellis coding with asymmetric PSK signal constellation
Author :
Park, Seong Ill ; Bae, Jinsoo ; Ryu, Sang Woo ; Lee, Yong Up ; Song, Iickho
Author_Institution :
Daewoo Electron. Co. Ltd., Seoul, South Korea
Abstract :
Analyzes the performance of direct-sequence spread spectrum multiple access (DS/SSMA) systems using trellis coding with asymmetric phase shift keying (PSK) modulation. By designing the signal constellation to be asymmetric, the authors obtain a performance gain of DS/SSMA systems over the systems using the traditional symmetric signal constellation. Bit error probability analysis of the proposed system is carried out for some cases. A few examples are given to show the performance gain due to the asymmetry of the signal constellation
Keywords :
error statistics; multi-access systems; phase shift keying; probability; pseudonoise codes; spread spectrum communication; trellis coded modulation; DS/SSMA systems; asymmetric PSK signal constellation; asymmetric phase shift keying; bit error probability; direct-sequence spread spectrum multiple access; performance; trellis coding; Constellation diagram; Error analysis; Error probability; Modulation coding; Performance analysis; Performance gain; Phase modulation; Phase shift keying; Signal design; Spread spectrum communication;
Conference_Titel :
Communications, Computers, and Signal Processing, 1995. Proceedings., IEEE Pacific Rim Conference on
Conference_Location :
Victoria, BC
Print_ISBN :
0-7803-2553-2
DOI :
10.1109/PACRIM.1995.519546
