Joint Transceiver Optimization for Two-Way MIMO Relay Systems With MSE Constraints

Author

ZhiQiang He ; Zhouhao Lang ; Yue Rong ; Sicong Qu

Author_Institution

Key Lab. of Universal Wireless Commun., Beijing Univ. of Posts & Telecommun., Beijing, China

Volume

3

Issue

6

fYear

2014

fDate

Dec. 2014

Firstpage

613

Lastpage

616

Abstract

Transceiver design for two-way multiple-input multiple-output (MIMO) relay systems has attracted much research interest recently. However, there is little research on the impact of quality-of-service (QoS) constraints on two-way MIMO relay systems, which greatly affects the user experience. In this letter, we propose a transceiver design for two-way MIMO relay systems which minimizes the total network transmission power subjecting to QoS constraints expressed as upper-bounds on the mean-squared error (MSE) of the signal waveform estimation at both destinations. An iterative algorithm is developed to optimize the source, relay, and receive matrices. Simulation results demonstrate the fast convergence of the proposed algorithm.

Keywords

MIMO communication; convergence; iterative methods; matrix algebra; mean square error methods; minimisation; quality of service; radio transceivers; relay networks (telecommunication); MSE; QoS; fast convergence demonstration; iterative algorithm; joint transceiver optimization; mean squared error; quality of service; receive matrice optimization; relay optimization; signal waveform estimation; source optimization; total network transmission power minimization; two-way MIMO relay system; two-way multiple input multiple output relay system; user experience; MIMO; Optimization; Quality of service; Relays; Transceivers; MIMO relay; MMSE; QoS; Two-way relay; linear non-regenerative relay;

fLanguage

English

Journal_Title

Wireless Communications Letters, IEEE

Publisher

ieee

ISSN

2162-2337

Type

jour

DOI

10.1109/LWC.2014.2357814

Filename

6897976