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Yang, Hyun Jong
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Approximate closed-form energy efficient PA for MIMO relaying systems in the high snr regime

Author(s)
Li, ChunguoYang, Hyun JongSun, FanCioffi, John M.Yang, Luxi
Issued Date
2014-08
DOI
10.1109/LCOMM.2014.2328599
URI
https://scholarworks.unist.ac.kr/handle/201301/5637
Fulltext
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84906248604
Citation
IEEE COMMUNICATIONS LETTERS, v.18, no.8, pp.1367 - 1370
Abstract
Energy efficient power coefficients at the relay are derived in a closed-form expression for the green multi-input-multi-output relaying system in the high signal-to-noise ratio (SNR) regime, where the objective is to maximize the energy efficiency (EE), which is defined by the ratio of the spectral efficiency (SE) to total power consumption, with a minimum SE requirement under practical power consumption models. In particular, we derive closed-form solutions using the high SNR approximation, which turn out to be different from the water-filling solution. Simulation results show that the proposed solution nearly achieves the optimal EE in all SNR regimes.
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
ISSN
1089-7798

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