Title :
Analysis of satellite WCDMA systems applying space-time codes with imperfect channel estimation
Author :
Kim, Byoung-Gi ; Kim, Sooyoung ; Ahn, Do-Seob
Author_Institution :
Commun. Satellite Dev. Group, ETRI, Daejeon, South Korea
fDate :
30 May-1 June 2005
Abstract :
In this paper, we investigate a satellite WCDMA system combined with space-time code. Generally, space-time codes have been hardly considered in satellite systems because we assume a prevailed line of sight (LOS) condition. However, in a mobile satellite communication channel, space-time codes could play an important role to provide economic and high quality services. We applied Alamouti´s space time transmit diversity (STTD) scheme to the satellite WCDMA system, and extensively demonstrate the simulation results on a mobile satellite channel. The simulation results investigated in this paper reveal that the STTD scheme in mobile satellite system could provide much better performance to the one in terrestrial system in reasonable range of signal to noise ratio.
Keywords :
broadband networks; channel coding; channel estimation; code division multiple access; diversity reception; mobile satellite communication; quality of service; space-time codes; imperfect channel estimation; line of sight condition; mobile satellite channel; satellite WCDMA systems; signal to noise ratio; space time transmit diversity scheme; space-time code; space-time codes; terrestrial system; Artificial satellites; Bandwidth; Channel estimation; Diversity methods; Multiaccess communication; Rayleigh channels; Satellite broadcasting; Satellite communication; Signal to noise ratio; Space time codes; STTD; WCDMA; imperfect channel estimation; satellite; space-time codes;
Conference_Titel :
Vehicular Technology Conference, 2005. VTC 2005-Spring. 2005 IEEE 61st
Print_ISBN :
0-7803-8887-9
DOI :
10.1109/VETECS.2005.1543828
