Title :
Low Complexity Code-Multiplexed Pilot Aided Adaptive MMSE Equalizer for CDMA Systems
Author :
Rong Zeng ; Guangqiu Li
Author_Institution :
Hangzhou Dianzi Univ., Hangzhou
Abstract :
In the high data rate transmission, multiple access interference (MAI) and inter-chip interference (ICI) in the CDMA systems become serious because of the multi-path propagation. A low complexity code-multiplexed pilot aided adaptive MMSE equalizer for CDMA systems is proposed based on the method of steepest decent and Fast Fourier Transform (FFT). Computer simulation has shown that the performance of proposed low complexity adaptive MMSE equalizer approaches the ideal non-adaptive equalizer with the computational complexity reduced considerably.
Keywords :
code division multiple access; computational complexity; equalisers; fast Fourier transforms; interference (signal); least mean squares methods; CDMA systems; adaptive MMSE equalizer; code-multiplexed pilot aided; computational complexity; data rate transmission; fast Fourier transform; inter-chip interference; low complexity; multipath propagation; multiple access interference; nonadaptive equalizer; Adaptive equalizers; Computational complexity; Computer simulation; Decision feedback equalizers; Delay; Downlink; Fast Fourier transforms; Multiaccess communication; Multiple access interference; Signal processing;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing, 2008. WiCOM '08. 4th International Conference on
Conference_Location :
Dalian
Print_ISBN :
978-1-4244-2107-7
Electronic_ISBN :
978-1-4244-2108-4
DOI :
10.1109/WiCom.2008.19
