Title :
Performance comparison of TCM design criterion for mobile multimedia satellite systems using synchronous-CDMA
Author :
Valadon, C. ; Dimitriou, N. ; Tafazolli, R. ; Evans, B.G.
Author_Institution :
Mobile Commun. Res. Group, Surrey Univ., Guildford, UK
Abstract :
The aim of this paper is to analyse and compare the performance of TCMs in satellite S-CDMA channels considering both Ungerboeck (1982) and Schegel-Costello (1989) designs. The performance of the different codes are simulated in Ricean fading channel for different values of the K factor. The impact of imperfect synchronisation between the different users on the performance is assessed. Finally, it is shown that even though S-CDMA is less sensitive than A-CDMA to the near-far effect, a good accuracy of the power control technique(s) is still required
Keywords :
Rician channels; code division multiple access; mobile satellite communication; multimedia communication; multiuser channels; power control; radiofrequency interference; synchronisation; telecommunication control; trellis coded modulation; trellis codes; A-CDMA; K factor; Ricean fading channel; S-CDMA; Schegel-Costello TCM design; TCM design criterion; Ungerboeck TCM design; accuracy; codes; imperfect synchronisation; mobile multimedia satellite systems; multiaccess interference; near-far effect; performance; performance comparison; power control techniques; statistical channel model; synchronous-CDMA; Artificial satellites; Fading; Frequency synchronization; Mobile communication; Multiaccess communication; Multimedia communication; Multimedia systems; Quality of service; Satellite broadcasting; Videoconference;
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.1998.726188
