Title :
Performance evaluation of quasi-synchronous code division multiple access (QS-CDMA) for satellite mobile systems
Author :
De Gaudenzi, R. ; Elia, C. ; Viola, R.
Author_Institution :
Eur. Space Agency, Noordwijk, Netherlands
Abstract :
The authors discuss and analyze the performance of a quasi-synchronous code-division multiple-access (QS-CDMA) mobile satellite communication system. Practical network synchronization schemes cannot guarantee perfect carrier frequency and code timing alignment. Therefore, bit error rate (BER) impairment due to frequency and chip timing errors is evaluated. Theoretical results on QS-CDMA performance are confirmed by a time-domain system computer simulation. In particular, QS-CDMA sensitivity to combined frequency/timing errors is addressed. The suitability of Gold codes for the proposed QS-CDMA mobile satellite network has been demonstrated
Keywords :
code division multiple access; mobile radio systems; satellite relay systems; BER; Gold codes; bit error rate; carrier frequency; chip timing errors; code division multiple access; code timing; computer simulation; frequency errors; mobile satellite communication system; mobile satellite network; network synchronization; performance evaluation; quasisynchronous CDMA; satellite mobile systems; time-domain system; Bit error rate; Computer errors; Computer simulation; Frequency synchronization; Gold; Multiaccess communication; Performance analysis; Satellite communication; Time domain analysis; Timing;
Conference_Titel :
Global Telecommunications Conference, 1990, and Exhibition. 'Communications: Connecting the Future', GLOBECOM '90., IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
0-87942-632-2
DOI :
10.1109/GLOCOM.1990.116793
