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Joint Design of Uplink-Downlink MIMO Relay Networks Using Duality

Seungwon CHOI, Jung-Hyun PARK, Seokkwon KIM, Dong-Jo PARK

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Summary :

This letter introduces a joint design method for uplink-downlink multiple-input multiple-output (MIMO) relay communication systems in which the source nodes transmit information to the destination nodes with the help of a relay. We propose a signal forwarding schceme based on the minimum mean-square error (MMSE) approach in uplink relay systems. Exploiting the duality of relay systems, we also propose a relaying scheme for downlink relay systems. Simulation results confirm that the proposed joint design method improves the performance of the relay systems compared with that of conventional relaying schemes in uplink and downlink MIMO relay systems.

Publication
IEICE TRANSACTIONS on Communications Vol.E95-B No.1 pp.333-336
Publication Date
2012/01/01
Publicized
Online ISSN
1745-1345
DOI
10.1587/transcom.E95.B.333
Type of Manuscript
LETTER
Category
Wireless Communication Technologies

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