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Performance enhancement of CDMA cellular systems with a new adaptive algorithm for base station antenna arrays

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3 Author(s)
Ghanem, K. ; INRS-EMT, Quebec Univ., Montreal, Que., Canada ; Denidni, A.T. ; Aissa, S.

This paper examines the using of multiple antennas for direct-sequence code division multiple access (DS-CDMA) mobile communications at the base station-receiver. The main contribution of the new technique is in its simplicity, fast convergence and adaptivity to adverse environments, where the desired signal may not be dominant. In addition, the mobile speed and the data length limitations in the conventional on-off based approaches, are here overcome by chip-synchronized processing and variable-step-size adaptation. The performance of the proposed algorithm is studied and analyzed in terms of signal-to-noise-plus-interference (SINR), bit error rate (BER), and achievable capacity in CDMA systems.

Published in:

Vehicular Technology Conference, 2003. VTC 2003-Fall. 2003 IEEE 58th  (Volume:1 )

Date of Conference:

6-9 Oct. 2003