Joint International Conference on Autonomic and Autonomous Systems and International Conference on Networking and Services - (icas-icns'05) Multistage Quasi-Orthogonal Minimum Output Energy Multiuser Detector Analysis for Convolutionally Coded CDMA Systems in Frequency-Selective Fading Papeete, Tahiti October 23-October 28 ISBN: 0-7695-2450-8
The paper presents the performance analysis of the multistage 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 multistage detectors, namely; 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 multistage QOMOE-MRC can obtain better performance than that of other considered detectors.
Index Terms:
3G, 3.5G, 4G, CDMA, convolutional code, MC-CDMA, multiple-access interference, multiuser detection.
Citation:
Mohamed Moustafa, Abd-El Aziz Moustafa, "Multistage Quasi-Orthogonal Minimum Output Energy Multiuser Detector Analysis for Convolutionally Coded CDMA Systems in Frequency-Selective Fading," icas-icns, pp.11, Joint International Conference on Autonomic and Autonomous Systems and International Conference on Networking and Services - (icas-icns'05), 2005 Usage of this product signifies your acceptance of the Terms of Use. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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