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Bit error rate analysis of the quasi-orthogonal minimum output energy multiuser detector for convolutionally coded CDMA systems in frequency-selective fading

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1 Author(s)
Moustafa, M.M.A.-E.A. ; Inf. & Decision Support Center, Inf. Technol. Inst., Egypt

This paper presents the performance analysis of the quasi-orthogonal minimum output energy (QOMOE) detector for a convolutionally coded synchronous CDMA systems in frequency selective fading environment. The QOMOE detector minimizes the output variance with respect to the component equivalent to the quasi-orthogonal component to the desired user's signature waveform, then the solution is the linear minimum mean square error (LMMSE) transformation. The QOMOE receiver employs maximal-ratio combiner (MRC) for detecting the desired user. A comparison is made among QOMOE-MRC, matched filter (MF-MRC), decorrelator-MRC, LMMSE-MRC and blind adaptive-MRC receivers, in a frequency selective fading channel. Analysis and simulation results show that the QOMOE-MRC can obtain better performance than that of other considered receivers.

Published in:

Personal Wireless Communications, 2005. ICPWC 2005. 2005 IEEE International Conference on

Date of Conference:

23-25 Jan. 2005

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