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Title: Antenna diversity combining and finite-tap decision feedback equalization for high-speed data transmission
Authors: Ng, John C. L.
Letaief, K. B.
Murch, Ross David
Keywords: High-speed data transmission
Antenna diversity combining
Decision feedback equalization
Inter-symbol interference
Co-channel interference
Wireless communications
Issue Date: 1998
Citation: IEEE journal on selected areas in communications, v. 16, no. 8, Oct. 1998, p. 1367-1375
Abstract: The next-generation wireless communication systems are expected to support high speed data transmission. However, associated with high transmission rates is the problem of multipath inter-symbol interference (ISI) due to frequency-selective fading. Decision feedback equalization (DFE) and antenna diversity combining are two practical techniques for combating multipath ISI. In this paper, we investigate the performance of diversity combining together with DFE under various numbers of antenna branches and equalization taps in a quasi-stationary frequency-selective fading environment with AWGN and co-channel interference (CCI) by means of simulations. We consider joint optimization combining and power selection diversity combining. We simulate the combiner using QPSK modulation with up to 4 antenna branches. Our results show that using antenna diversity and DFE with joint optimization combining provides performance improvement with lower computational complexity compared to that of using either DFE or diversity combining alone for combating ISI.
Rights: © 1998 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder.
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