Title :
Performance of the RAKE receiver under imperfect channel estimation in a DS-CDMA system
Author :
Ko, Seok Jun ; Choi, Hyung Jin
Author_Institution :
Sch. of Electr. & Comput. Eng., Sung Kyun Kwan Univ., Suwon, South Korea
Abstract :
This paper presents the bit-error rate (BER) performance of the RAKE receiver over a multipath Rayleigh fading channel. The closed-form solution for BER is obtained through analysis of the imperfect channel estimation. We compute the BER as a function of bit energy-to-noise ratio (E/sub b//N/sub 0/), channel and system parameters. This analysis allows predicting the system´s performance and helps to optimize the parameter setting for the channel estimation process. Finally, theoretical results are verified by using Monte-Carlo computer simulations.
Keywords :
Monte Carlo methods; Rayleigh channels; code division multiple access; error statistics; maximum likelihood estimation; multipath channels; radio receivers; spread spectrum communication; BER performance; DS-CDMA system; Monte-Carlo computer simulations; RAKE receiver; bit energy-to-noise ratio; bit-error rate; channel parameters; closed-form solution; imperfect channel estimation; multipath Rayleigh fading channel; parameter setting; system parameters; Bit error rate; Channel estimation; Downlink; Fading; Frequency; Maximum likelihood estimation; Multiaccess communication; Multipath channels; Performance analysis; Radio transmitters;
Conference_Titel :
Communications, 1999. APCC/OECC '99. Fifth Asia-Pacific Conference on ... and Fourth Optoelectronics and Communications Conference
Conference_Location :
Beijing, China
Print_ISBN :
7-5635-0402-8
DOI :
10.1109/APCC.1999.824997
