Title :
Parameter optimization for pilot symbol aided coherent demodulation
Author :
Zexian, Li ; Yuezhen, Wang ; Ping, Zhang
Author_Institution :
Beijing Univ. of Posts & Telecommun., China
Abstract :
In the forward link of many WCDMA proposals for IMT-2000, pilot symbol aided coherent demodulation (PSACD) is employed. The more pilot symbols there are, the more accurate the channel estimation is, but this will cause more information loss. This paper analyzes this trade-off by deriving the analytical error performance and performance loss due to pilot symbol aided coherent demodulation. Thus we can optimize the space between two neighbor pilot symbols.
Keywords :
Rayleigh channels; broadband networks; cellular radio; code division multiple access; demodulation; error statistics; multipath channels; multiuser channels; optimisation; parameter estimation; radio links; BER; IMT-2000; WCDMA; analytical error performance; cellular radio; channel estimation; flat Rayleigh fading channels; forward link; parameter optimization; performance loss; personal communications system; pilot symbol aided coherent demodulation; Baseband; Channel estimation; Demodulation; Europe; Fading; Frequency; Multiaccess communication; Performance analysis; Performance loss; Transmitters;
Conference_Titel :
Communications, 1999. APCC/OECC '99. Fifth Asia-Pacific Conference on ... and Fourth Optoelectronics and Communications Conference
Print_ISBN :
7-5635-0402-8
DOI :
10.1109/APCC.1999.824948
