Title :
Performance of TCM DS/SSMA in urban multipath fading channel
Author :
Yang, Fengfang ; Bi, Guangguo
Author_Institution :
Dept. of Radio Eng., Southeast Univ., Nanjing, China
Abstract :
In this paper we apply trellis coded modulation (TCM) to direct sequence spread spectrum multiple access (DS/SSMA) communication systems in urban multipath fading channels. Based on the characteristics of urban multipath fading channels under DS/SS, a new way of analyzing the properties of TCM (TC-MPSK and TC-MQAM) DS/SSMA systems over such channels is proposed. Simulation results show that the performance of low rate TCM is better than that of traditional Ungerboeck´s TCM in DS/SSMA systems over urban multipath fading channels
Keywords :
code division multiple access; fading; land mobile radio; multipath channels; phase shift keying; pseudonoise codes; quadrature amplitude modulation; spread spectrum communication; trellis coded modulation; DS-SSMA; TC-MPSK; TC-MQAM; TCM; direct sequence spread spectrum multiple access; simulation results; trellis coded modulation; urban multipath fading channel; AWGN; Amplitude modulation; Bismuth; Cellular networks; Delay effects; Fading; Frequency division multiaccess; Personal communication networks; Signal processing; Spread spectrum communication;
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.1996.563515
