Asymptotic reduced-rank MMSE in asynchronous MC-DS-CDMA systems

Feng-Tsun Chien, Ronald Y. Chang

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We consider the design of a reduced-rank minimum mean-squared error (MMSE) receiver for asynchronous multicarrier-direct sequence-code division multiple access (MC-DS-CDMA) systems with random spreading. We focus on the asymptotic MMSE filter designs in the large system regime, i.e., both the spreading gain and the number of users approach infinity while their ratio is a finite constant and the number of subcarriers is finite. Explicit expressions for the asymptotic weights of the MMSE receiver are derived for the case where the spreading sequences are identical over different subcarriers for each user. Simulation results validate our analysis.

Original languageEnglish
Title of host publicationProceedings of 2014 International Symposium on Information Theory and Its Applications, ISITA 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages511-515
Number of pages5
ISBN (Electronic)9784885522925
StatePublished - 8 Dec 2014
Event2014 International Symposium on Information Theory and Its Applications, ISITA 2014 - Melbourne, Australia
Duration: 26 Oct 201429 Oct 2014

Publication series

NameProceedings of 2014 International Symposium on Information Theory and Its Applications, ISITA 2014

Conference

Conference2014 International Symposium on Information Theory and Its Applications, ISITA 2014
CountryAustralia
CityMelbourne
Period26/10/1429/10/14

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