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Performance of MMSE Multiuser Detection in Cellular DS-CDMA Systems Using Distributed Antennas

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1 Author(s)
Lie-Liang Yang ; School of ECS, University of Southampton, SO17 IBJ, UK. Tel: +44-23-8059 3364; Fax: +44-23-8059 4508, E-mail:

In this contribution we propose and investigate a high-capacity cellular direct-sequence code-division multiple-access (DS-CDMA) wireless communications system, where numerous antennas are distributed in the area covered by the system. The bit error rate (BER) performance of the distributed antenna cellular DS-CDMA system is investigated, when minimum mean-square error (MMSE) multiuser detection is employed, and when transmission pass-loss, lognormal shadowing slow fading and Nakagami-m fast fading are considered. Our study suggests that the distributed antenna cellular DS-CDMA system constitutes a high power-efficiency wireless system. For utilizing the same set of system parameters, it is capable of providing an extremely higher capacity, than the cellular DS-CDMA system designed based on the conventional cellular concepts. Furthermore, the proposed distributed antenna cellular system can be operated without having to use power-control

Published in:

2006 IEEE 63rd Vehicular Technology Conference  (Volume:1 )

Date of Conference:

7-10 May 2006