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Reduced complexity and improved performance receiver for downlink MIMO MC-CDMA systems

Lookup NU author(s): Abdullatif Khrwat, Professor Bayan Sharif, Professor Harris Tsimenidis

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Abstract

In this paper a low complexity MIMO MC-CDMA receiver is proposed. We investigate the receiver performance and complexity in the case of despreading Multicarrier Code Division Multiple Access signals (MC-CDMA) prior to V-BLAST detection in Multiple Input Multiple Output systems (MIMO). The proposed structure shows that for iterative detection, despreading before detection (DBD) reduces the effect of multiple access interference (MAI), and the reported results demonstrate improved bit error rate (BER) performance and user capacity of the system over despreading after detection (DAD). Furthermore, DBD results in reduced system complexity. The performance of both detectors is evaluated using computer simulations for a frequency selective slow Rayleigh fading channel. ©2008 IEEE.

Publication metadata

Author(s): Khrwat AS, Sharif BS, Tsimenidis CC

Publication type: Conference Proceedings (inc. Abstract)

Publication status: Published

Conference Name: 3rd International Symposium on Communications, Control, and Signal Processing, (ISCCSP)

Year of Conference: 2008

Pages: 1596-1599

Publisher: IEEE

URL: http://dx.doi.org/10.1109/ISCCSP.2008.4537482

DOI: 10.1109/ISCCSP.2008.4537482

Library holdings: Search Newcastle University Library for this item

ISBN: 9781424416882

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