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GLOBECOM
2010
IEEE

Design of Amplify and Forward MIMO Relay Networks with QoS Constraint

9 years 1 months ago
Design of Amplify and Forward MIMO Relay Networks with QoS Constraint
In this paper, we design the optimal precoding matrices for amplify-and-forward (AF) multiple-input multipleoutput (MIMO) relay networks. Specifically, we consider a dualhop relay network and minimize the total power consumed by source and relay under predetermined quality of service (QoS) constraints, i.e., mean square error (MSE) constraints. By using majorization theory, we simplify the matrix-valued problem into a scalar-valued one. Since the problem is non-convex, we then propose two convex suboptimal problems that provide the upper and lower bound of the original objectives. Numerical results demonstrate that the lower bound and the upper bound are tight in high signal-to-noise ratio (SNR).
Jafar Mohammadi, Feifei Gao, Yue Rong
Added 02 Mar 2011
Updated 02 Mar 2011
Type Journal
Year 2010
Where GLOBECOM
Authors Jafar Mohammadi, Feifei Gao, Yue Rong
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