Interference rejection and equalization for DS/CDMA multiuser communication

Hsin Chang Chen*, Li Der Jeng, Chung-Hsuan Wang

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In direct-sequence code division multiple access (DS/CDMA) mobile communication systems with time-varying multipart channels, both intersymbol interference (ISI) and multiple-access interference (MAI) must be considered. It has been shown that iterative equalization and decoding method is an efficient technique to combat ISI. Based on this approach, we propose a turbo equalization-like receiver for multiuser DS/CDMA systems in multipart channels. The proposed MAI-rejection/ISI suppression filter is based on a cost function evaluated at the PN code despreader's and data detector's output Besides, our scheme does not require a training signal. Simulation results show that the proposed iterative receiver performs better than that of non-iterative scheme, and the BER decreases with the number of iteration increases.

Original languageEnglish
Title of host publication2nd International Symposium on Wireless Communications Systems 2005, ISWCS 2005 - Conference Proceedings
Pages284-288
Number of pages5
DOIs
StatePublished - 1 Dec 2005
Event2nd International Symposium on Wireless Communications Systems 2005, ISWCS 2005 - Siena, Italy
Duration: 5 Sep 20057 Sep 2005

Publication series

Name2nd International Symposium on Wireless Communications Systems 2005, ISWCS 2005 - Conference Proceedings
Volume2005

Conference

Conference2nd International Symposium on Wireless Communications Systems 2005, ISWCS 2005
CountryItaly
CitySiena
Period5/09/057/09/05

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    Chen, H. C., Jeng, L. D., & Wang, C-H. (2005). Interference rejection and equalization for DS/CDMA multiuser communication. In 2nd International Symposium on Wireless Communications Systems 2005, ISWCS 2005 - Conference Proceedings (pp. 284-288). [1547705] (2nd International Symposium on Wireless Communications Systems 2005, ISWCS 2005 - Conference Proceedings; Vol. 2005). https://doi.org/10.1109/ISWCS.2005.1547705