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Two-way compress-and-forward relaying with multiple MIMO relay nodes

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Open access
Authors
Rong, Yue
Date
2014
Type
Journal Article

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Rong, Y. 2014. Two-way compress-and-forward relaying with multiple MIMO relay nodes. IEEE Communications Letters. 18 (8): pp. 1387-1390.
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IEEE Communications Letters
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Department of Electrical and Computer Engineering
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Copyright © 2014 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

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Abstract

In this letter, we consider a two-way communication system where two source nodes exchange information via multiple relay nodes. The source and relay nodes may have multiple antennas and the compress-and-forward strategy is applied at each relay node. We aim at maximizing the sum-rate of two-way communication. An iterative algorithm is proposed to jointly optimize the source precoding matrices, the compression noise covariance matrices, and the time-sharing factor. Numerical simulation results show a better performance of the proposed algorithm compared with existing techniques.