Energy-efficient precoding in multicell networks with full-duplex base stations

Publisher:
Springer
Publication Type:
Journal Article
Citation:
EURASIP Journal on Wireless Communications and Networking, 2017, 48 pp. 1 - 13 (13)
Issue Date:
2017-03-14
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© 2017, The Author(s). This paper considers multi-input multi-output (MIMO) multicell networks, where the base stations (BSs) are full-duplex transceivers, while uplink and downlink users are equipped with multiple antennas and operate in a half-duplex mode. The problem of interest is to design linear precoders for BSs and users to optimize the network’s energy efficiency. Given that the energy efficiency objective is not a ratio of concave and convex functions, the commonly used Dinkelbach-type algorithms are not applicable. We develop a low-complexity path-following algorithm that only invokes one simple convex quadratic program at each iteration, which converges at least to the local optimum. Numerical results demonstrate the performance advantage of our proposed algorithm in terms of energy efficiency.
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