Bentrcia, A. and Zerguine, Azzedine and benyoucef, moussa A WIDEBAND BSOR-GSIC MULTIUSER DETECTOR FOR LONG-CODE CDMA SYSTEMS. IEEE International Conference on Signal Processing and Communication.
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In this work, a new wideband linear group-wise SIC (GSIC) multi-user scheme that is asymptotically equivalent to the block successive over-relaxation (BSOR) iteration, which is known to outperform the conventional block Gauss-Seidel iteration by an order of magnitude in terms of convergence speed, is proposed. The proposed scheme uses directly the spreading codes and doesn’t require the calculation of the cross-correlation matrix which results in a considerable reduction in computational complexity. Hence it is suitable for long-code CDMA systems such as IS-95 and UMTS where the cross-correlation matrix is changing every symbol. We determine the condition of convergence of the proposed scheme and prove that it converges to the decorrelator detector if the over-relaxation factor is within the interval (0, 2). Simulation results are in excellent agreement with theory.
|Divisions:||College Of Engineering Sciences > Electrical Engineering Dept|
|Creators:||Bentrcia, A. and Zerguine, Azzedine and benyoucef, moussa|
|Email:||firstname.lastname@example.org, email@example.com, firstname.lastname@example.org|
|Deposited By:||ABDELOUAHAB BENTRCIA|
|Deposited On:||24 Mar 2008 16:03|
|Last Modified:||12 Apr 2011 13:07|
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