Title :
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
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;
Journal_Title :
Wireless Communications Letters, IEEE
DOI :
10.1109/LWC.2014.2357814
