The performance of preRAKE diversity combining under imperfect channel estimation based on QPSK modulation in TDD CDMA system
Yue Song, Yang Xiao · 2002
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.