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An improved HIC using a new ordering and grouping algorithm

Bentrcia, A. and Sheikh, A.U. and Zerguine, A. (2003) An improved HIC using a new ordering and grouping algorithm. Signal Processing and Its Applications, 2003. Proceedings. Seventh International Symposium on, 1.

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Abstract

A linear group-wise successive interference canceller in a synchronous CDMA system is considered in this work. The proposed hybrid detector that combines successive and parallel cancellation techniques makes use of advantages offered by the two techniques. The convergence of the hybrid interference cancellation (HIC) detector is guaranteed by an adjustable parameter that depends upon the largest eigenvalue of the system's transition matrix. Since this largest eigenvalue is difficult to estimate, an upper bound is necessary for successful convergence. For this reason, we propose a new ordering and grouping algorithm that yields a tight upper bound, which, in turn, results in a higher convergence speed. Simulation results show that a significant improvement in performance is obtained when this technique is used.



Item Type:Article
Date:July 2003
Date Type:Publication
Subjects:Computer
Divisions:College Of Engineering Sciences > Electrical Engineering Dept
Creators:Bentrcia, A. and Sheikh, A.U. and Zerguine, A.
ID Code:14650
Deposited By:KFUPM ePrints Admin
Deposited On:24 Jun 2008 16:44
Last Modified:12 Apr 2011 13:16

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