Title :
Performance of a Turbo-Coded CDMA-Based Modulation for Mobile Satellite Systems
Author :
Ajibesin, Adeyemi Abel ; Chan, H. Anthony ; Dlodlo, M.E. ; Ferguson, Katy
Author_Institution :
Dept. of Electr. Eng., Univ. of Cape Town, Cape Town
Abstract :
The performance of a satellite systems depend on the propagation mode of the radio waves. The nature of satellite channel is one of the biggest obstacle facing the design of communications systems. This characterised satellite channels by fading and interference. Moreover, satellite communication systems are limited by available transmitting power and bandwidth. Signal power could be reduced while maintaining the same quality of service (QoS). This can be achieved by channel encoder techniques using forward error correction (FEC). Turbo codes is one of the efficient error control codes currently available. The combination of turbo codes and code division multiple access (CDMA) could improve the system performance especially in a multiuser environment. This paper presents the simulation results of turbo codes and CDMA performance on mobile satellite communication channels.
Keywords :
channel coding; code division multiple access; forward error correction; mobile satellite communication; radiowave propagation; turbo codes; channel encoder techniques; code division multiple access; forward error correction; mobile satellite systems; radio waves propagation; satellite channel; satellite communication systems; turbo-coded CDMA-based modulation; Artificial satellites; Bandwidth; Fading; Forward error correction; Interference; Multiaccess communication; Quality of service; Satellite broadcasting; Satellite communication; Turbo codes; CDMA; QoS; Turbo codes; mobile satellite systems; modulation and coding;
Conference_Titel :
Broadband Communications, Information Technology & Biomedical Applications, 2008 Third International Conference on
Conference_Location :
Gauteng
Print_ISBN :
978-1-4244-3281-3
Electronic_ISBN :
978-0-7695-3453-4
DOI :
10.1109/BROADCOM.2008.35
