Interference suppression in MC-CDMA systems by joint transceiver design

Seo Kyoungnam, Yang Liuqing

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

Abstract

Multi-carrier code division multiple access (MC-CDMA) systems are well suited for high data rate wireless multimedia services due to their capability of converting the frequency-selective jading channels to distinct frequency-flat ones with, low-complexity fast Fourier transform (FFT) devices. However, in multiuser MC-CDMA systems, the frequency selectivity and variation of the users ' geographical locations give rise to the multiuser interference (MUI) which induces a significant performance degradation of the systems. In order to mitigate MUI, we present a joint interference suppression algorithm of transmitter power control, receiver array processing and multiuser detection. In addition to the interference suppression using this algorithm, the frequency selectivity also provides multipath diversity if appropriately exploited. Simulations confirm the outstanding performance improvement of this algorithm compared with existing alternatives in MC-CDMA systems, and also confirm that the algorithm performs better in frequency-selective fading channels than m frequency-flat fading ones due to the multipath diversity.

Original languageEnglish (US)
Title of host publicationMilitary Communications Conference 2006, MILCOM 2006
DOIs
StatePublished - 2007
Externally publishedYes
EventMilitary Communications Conference 2006, MILCOM 2006 - Washington, D.C., United States
Duration: Oct 23 2006Oct 25 2006

Publication series

NameProceedings - IEEE Military Communications Conference MILCOM

Other

OtherMilitary Communications Conference 2006, MILCOM 2006
CountryUnited States
CityWashington, D.C.
Period10/23/0610/25/06

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