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Author Peiran Wu ♦ Schober, R. ♦ Bhargava, V.K.
Source IEEE Xplore Digital Library
Content type Text
Publisher Institute of Electrical and Electronics Engineers, Inc. (IEEE)
File Format PDF
Copyright Year ©2002
Language English
Subject Domain (in DDC) Computer science, information & general works ♦ Data processing & computer science ♦ Natural sciences & mathematics ♦ Physics ♦ Electricity & electronics
Subject Keyword Relays ♦ MIMO ♦ Decision feedback equalizers ♦ OFDM ♦ Vectors ♦ Optimization ♦ Linear programming ♦ Single-carrier frequency-domain equalization ♦ Transceiver design ♦ MIMO Relay
Abstract In this paper, we propose a joint transceiver design for single-carrier frequency-domain equalization (SC-FDE) based multiple-input multiple-output (MIMO) relay systems. To this end, we first derive the optimal minimum mean-squared error linear and decision-feedback frequency-domain equalization filters at the destination along with the corresponding error covariance matrices at the output of the equalizer. Subsequently, we formulate the source and relay precoding matrix design problem as the minimization of a family of Schur-convex and Schur-concave functions of the mean-squared errors at the output of the equalizer under separate power constraints for the source and the relay. By exploiting properties of the error covariance matrix and results from majorization theory, we derive the optimal structures of the source and relay precoding matrices, which allows us to transform the matrix optimization problem into a scalar power optimization problem. Adopting a high signal-to-noise ratio approximation for the objective function, we obtain the global optimal solution for the power allocation variables. We illustrate the excellent performance of the proposed system and compare it to that of conventional orthogonal frequency-division multiplexing MIMO relay systems based on computer simulations.
Description Author affiliation :: Dept. of Electr. & Comput. Eng., Univ. of British Columbia (UBC), Vancouver, BC, Canada
ISSN 15361276
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2013-09-01
Publisher Place U.S.A.
Rights Holder Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Volume Number 12
Issue Number 9
Size (in Bytes) 517.79 kB
Page Count 16
Starting Page 4376
Ending Page 4391


Source: IEEE Xplore Digital Library