Diagonalized two-way MIMO AF relaying for non-simultaneous traffic in cellular systems

Author

Budhiraja, Rohit ; Ramamurthi, Bhaskar

Author_Institution

Dept. of Electr. Eng., IIT Madras, Chennai, India

fYear

2014

fDate

22-25 June 2014

Firstpage

324

Lastpage

328

Abstract

A novel multiple-input multiple-output (MIMO) channel-diagonalization design is proposed for non-simultaneous two-way relaying (NS-TWR). Unlike conventional TWR, the base station in NS-TWR serves two different users - a transmit-only user and a receive-only user. The receive-only user experiences back-propagating interference (BI). The proposed design, which uses linear receivers, cancels the BI and diagonalizes the end-to-end MIMO channels. The diagonalized NS-TWR overcomes the restrictive antenna configurations of existing designs and yields substantial sum-rate improvement over them.

Keywords

MIMO communication; cellular radio; radio receivers; radiofrequency interference; relay networks (telecommunication); telecommunication traffic; BI; NS-TWR; backpropagating interference; base station; cellular systems; diagonalized two-way MIMO AF relaying; linear receivers; multiple-input multiple-output channel-diagonalization design; nonsimultaneous traffic; receive-only user; substantial sum-rate improvement; transmit-only user; Antennas; Bismuth; MIMO; Receivers; Relays; Uplink; Vectors; Back-propagating interference; cellular systems; diagonalized channel; linear receivers; non-simultaneous traffic;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing Advances in Wireless Communications (SPAWC), 2014 IEEE 15th International Workshop on

Conference_Location

Toronto, ON

Type

conf

DOI

10.1109/SPAWC.2014.6941701

Filename

6941701