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Performance Assessment for the Selection Transmit Diversity in Adaptive Polarized MIMO Pre-RAKE System

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3 Author(s)
Halim, J.V.M. ; Electron. & Commun. Dept., Ain Shams Univ., Cairo ; El-Badawy, H. ; El-Hennawy, H.M.

This paper evaluates the performance of the Selection Transmit Diversity (STD) technique in adaptive Polarized Multiple-Input Multiple-Output (MIMO) Pre-RAKE system. The proposed system will be examined in Frequency Division Duplex (FDD) mode. For the same spatial dimensions, the proposed system will be compared with the Pre/Post RAKE systems and the single-polarization Pre-RAKE STD systems. As will be shown, our system can achieve a much better performance in addition to simplify the receiver's implementation. Also, the system performance will be investigated in case of excluding the cross-pol Pre-RAKEs in the base station. The paper discusses the effect of the polarization diversity characteristics as well as the impact of the imbalance in the co-polarized power intensities on the BER performance. For slowly-varying channels, an assessment for the system performance will be investigated under different Feedback Information (FBI) rates. In addition, a performance comparison for vehicular and pedestrian environments will be presented.

Published in:

Telecommunications, 2008. AICT '08. Fourth Advanced International Conference on

Date of Conference:

8-13 June 2008