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IEICE TRANSACTIONS on Fundamentals

Design of Two-Way Relay Network Using Space-Time Block Coded Network Coding with Relay Selection

Xuan Nam TRAN, Van Bien PHAM, Duc Hiep VU, Yoshio KARASAWA

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Summary :

This paper presents the design of an ad hoc two-way two-hop relay network using physical-layer network coding (PNC) in which multiple antennas are used at all nodes. In the considered network, the Alamouti's space-time block code (STBC) is used for transmission while linear detection is used for signal recovery. In order to facilitate linear estimation, we develop an equivalent multiuser STBC model for the proposed network and design the sum-and-difference matrix which allows convenient combination of the transmitted symbols from the end nodes. In addition, a simple relay selection method based on minimum mean square error (MSE) is proposed for performance improvement. Simulation results show that the proposed network achieves diversity order 2 while requiring only polynomial complexity. Moreover, it is possible to achieve significant bit error rate (BER) performance improvement when the proposed relay selection algorithm is used.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E98-A No.8 pp.1657-1666
Publication Date
2015/08/01
Publicized
Online ISSN
1745-1337
DOI
10.1587/transfun.E98.A.1657
Type of Manuscript
Special Section PAPER (Special Section on Information and Communication Systems for Safe and Secure Life)
Category

Authors

Xuan Nam TRAN
  Le Quy Don Technical University
Van Bien PHAM
  Le Quy Don Technical University
Duc Hiep VU
  Le Quy Don Technical University
Yoshio KARASAWA
  The University of Electro-Communications

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