Title :
Analysis and optimization of pilot-channel-assisted QPSK for DS-CDMA systems
Author :
Kan, Zheng ; Wenbo, Wang ; Dacheng, Yang
Author_Institution :
Dept. of Telecommun. Eng., Beijing Univ. of Posts & Telecommun., China
Abstract :
We investigate pilot-channel-assisted QPSK in direct-sequence code-division multiple-access (DS-CDMA) systems. The performance loss due to imperfect channel estimation is calculated. Then the data-to-pilot channel power ratio is optimized analytically and the probability is presented. Finally, simulation results are given
Keywords :
cellular radio; code division multiple access; digital radio; multiuser channels; optimisation; parameter estimation; probability; quadrature phase shift keying; spread spectrum communication; CDMA2000; DS-CDMA systems; data-to-pilot channel power ratio; digital cellular communications; direct-sequence code-division multiple-access; imperfect channel estimation; optimization; performance loss; pilot-channel-assisted QPSK; probability; signal-to-noise; simulation results; Channel estimation; Demodulation; Interference; Land mobile radio; Mean square error methods; Multiaccess communication; Power engineering and energy; Proposals; Quadrature phase shift keying; Radio transmitters;
Conference_Titel :
TENCON 2000. Proceedings
Conference_Location :
Kuala Lumpur
Print_ISBN :
0-7803-6355-8
DOI :
10.1109/TENCON.2000.893680
