Title :
Joint Relay Beamforming and Source Receiving in MIMO Two-Way AF Relay Network with Energy Harvesting
Author :
Yancun Chen ; Zhigang Wen ; Shuai Wang ; Juanjuan Sun ; Min Li
Author_Institution :
Commun. & Network Center, Beijing Univ. of Posts & Telecommun., Beijing, China
Abstract :
The joint relay beamforming and source receiving of MIMO two-way amplify-and-forward (AF) relay network with energy harvesting (EH) is studied. Based on minimizing total mean-square-error (Total-MSE) criterion, the primal problem is converted into two subproblems and solved by the iterative algorithm for its non-convexity. By the semidefinite relaxation (SDR), the beamforming subproblem is transformed into a convex semidefinite program (SDP) and the SDR-based approximately optimal solution is obtained with randomization technique. Then the closed-form suboptimal scheme is also presented with some simplified measures. The simulation results such as MSE, BER are carried out to demonstrate the performance of the proposed schemes for the system model.
Keywords :
MIMO communication; amplify and forward communication; convex programming; energy harvesting; iterative methods; mathematical programming; mean square error methods; relay networks (telecommunication); telecommunication power management; MIMO two-way AF relay network; MIMO two-way amplify-and-forward relay network; SDR-based approximately optimal solution; closed-form suboptimal scheme; convex semidefinite program; energy harvesting; iterative algorithm; joint relay beamforming; randomization technique; semidefinite relaxation; source receiving; total mean-square-error criterion; Array signal processing; Energy harvesting; Iterative methods; MIMO; Relay networks (telecommunications); Silicon;
Conference_Titel :
Vehicular Technology Conference (VTC Spring), 2015 IEEE 81st
Conference_Location :
Glasgow
DOI :
10.1109/VTCSpring.2015.7145903
