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MMSE Based Greedy Antenna Selection Scheme for AF MIMO Relay Systems
March 17, 2020 Β· Declared Dead Β· π IEEE Signal Processing Letters
"No code URL or promise found in abstract"
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Authors
Ming Ding, Shi Liu, Hanwen Luo, Wen Chen
arXiv ID
2003.07538
Category
eess.SP: Signal Processing
Cross-listed
cs.IT
Citations
51
Venue
IEEE Signal Processing Letters
Last Checked
5 months ago
Abstract
We propose a greedy minimum mean squared error (MMSE)-based antenna selection algorithm for amplify-and-forward (AF) multiple-input multiple-output (MIMO) relay systems. Assuming equal-power allocation across the multi-stream data, we derive a closed form expression for the mean squared error (MSE) resulted from adding each additional antenna pair. Based on this result, we iteratively select the antenna-pairs at the relay nodes to minimize the MSE. Simulation results show that our algorithm greatly outperforms the existing schemes.
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