Transmit power optimization over low-power Poisson channel in multiuser MISO indoor optical communications

In this paper, we address the problem of joint transmit beamforming and power control for a multiuser multiple-input single-output (MISO) indoor optical downlink channel. We adopt a shot-noise limited Poisson channel with transmitting signals subject to average and peak transmits power constraints....

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Bibliographic Details
Published inICT express Vol. 7; no. 3; pp. 361 - 365
Main Authors Arya, Sudhanshu, Chung, Yeon Ho, Chung, Wan-Young, Kim, Jong-Jin, Kim, Nam-Ho
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.09.2021
Elsevier
한국통신학회
Subjects
Convex optimization
Poisson channel
Second-order cone programming
전자/정보통신공학
Convex optimization
Second-order cone programming
Poisson channel
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Summary:In this paper, we address the problem of joint transmit beamforming and power control for a multiuser multiple-input single-output (MISO) indoor optical downlink channel. We adopt a shot-noise limited Poisson channel with transmitting signals subject to average and peak transmits power constraints. To minimize the total transmit power, we formulate an optimal downlink beamforming problem using convex optimization method via second-order cone programming techniques. In our approach, the total transmit power is optimized subject to the signal-to-interference-plus-noise ratio (SINR). The results verify performance improvements of the proposed technique as compared to conventional multiuser MISO indoor optical systems.
ISSN:2405-9595
2405-9595
DOI:10.1016/j.icte.2020.12.003