The performance of preRAKE diversity combining under imperfect channel estimation based on QPSK modulation in TDD CDMA system

Author

Song, Yue ; Xiao, Yang

Author_Institution

Inst. of Inf. Sci., Northern Jiaotong Univ., Beijing, China

Volume

2

fYear

2002

fDate

28-31 Oct. 2002

Firstpage

1126

Abstract

This paper analyzes the performance of preRAKE techniques., which is proposed for the time-division duplex (TDD) code-division multiple-access (CDMA) systems, based on quarter phase-shift keying (QPSK) modulation. This analysis is under both perfect and imperfect channel estimation, and the obtained bit error rate (BER) is simulated through Monte-Carlo integration. Then we can see the difference of performance between the ideal and the nonideal preRAKE systems. Also we can see the impact of the number of paths and users.

Keywords

Monte Carlo methods; channel estimation; digital simulation; diversity reception; error statistics; multiuser channels; quadrature phase shift keying; radio receivers; spread spectrum communication; BER; DS-CDMA; Monte-Carlo integration; QPSK modulation; RAKE receiver; TDD CDMA system; bit error rate; direct-sequence code-division multiple access; ideal preRAKE system; imperfect channel estimation; nonideal preRAKE system; perfect channel estimation; preRAKE diversity combining; quarter phase-shift keying; simulation; time-division duplex CDMA systems; Analytical models; Bit error rate; Channel estimation; Diversity reception; Modulation coding; Multiaccess communication; Performance analysis; Phase modulation; Phase shift keying; Quadrature phase shift keying;

fLanguage

English

Publisher

ieee

Conference_Titel

TENCON '02. Proceedings. 2002 IEEE Region 10 Conference on Computers, Communications, Control and Power Engineering

Print_ISBN

0-7803-7490-8

Type

conf

DOI

10.1109/TENCON.2002.1180322

Filename

1180322