Title | ||
---|---|---|
Biquadratic Optimization Based Joint Transmit And Receive Beamforming With Sequential Rank Relaxation |
Abstract | ||
---|---|---|
We consider the joint design of transmit and receive beamforming in multiple-input-multiple-output (MIMO) systems by utilizing prior knowledge of the target and interferences. The design problem is to maximize the receiver output signal-to-interference-plus-noise-ratio (SINR) with the transmit power constraint for each element. A conventional SINR maximization is based on the transmit and receive iteration (T-R iteration), which often converges slowly. In contrast, we formulate the problem as a biquadratic optimization by lumping together the transmit and receive beamformers, which allows us to update them at the same time, thus bypassing T-R iteration and initialization. Our approach converges significantly faster and often to a better beamforming solution, especially when strong interferences are present. Simulation results show that the proposed approach reduces the computational complexity by tens to hundreds of times than the T-R iteration method, depending on the interference level, while the latter may exhibit a considerable SINR loss when prematurely terminated or poorly initialized. (C) 2020 Elsevier B.V. All rights reserved. |
Year | DOI | Venue |
---|---|---|
2021 | 10.1016/j.sigpro.2020.107819 | SIGNAL PROCESSING |
Keywords | DocType | Volume |
Multiple-input multiple-output, Joint transmit and receive beamforming, Semidefinite relaxation | Journal | 179 |
ISSN | Citations | PageRank |
0165-1684 | 0 | 0.34 |
References | Authors | |
0 | 3 |
Name | Order | Citations | PageRank |
---|---|---|---|
Junwei Zhou | 1 | 118 | 16.64 |
Hongbin Li | 2 | 1412 | 114.60 |
Wei Cui | 3 | 95 | 8.64 |