Channel Training for MIMO Relay Systems in the Presence of Interference

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In this paper, we propose an optimal channel training method in the sense of linear minimum mean square error for multiple-input multiple-output amplify-and-forward relay systems in the presence of interference. By using a relay processing matrix, the received interference is cancelled or mitigated. To make the problem tractable, we first derive the optimal structure of the training signal and the relay processing matrix. Then, we propose an optimal channel training method. In order to reduce the complexity, we also propose an asymptotically optimal channel training method. Simulation results demonstrate that the two proposed methods outperform the conventional training signal design methods in terms of both the mean square error and in the bit error rate.
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Issue Date
2017-11
Language
English
Article Type
Editorial Material
Keywords

COLORED INTERFERENCE; SIGNAL-DESIGN; CAPACITY

Citation

IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, v.66, no.11, pp.10601 - 10605

ISSN
0018-9545
DOI
10.1109/TVT.2017.2758403
URI
http://hdl.handle.net/10203/228520
Appears in Collection
EE-Journal Papers(저널논문)
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