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Transmit/Passive Be...
Transmit/Passive Beamforming Design for Multi-IRS Assisted Cell-Free MIMO Networks
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- Wang, Kewei (författare)
- Nanjing University of Aeronautics and Astronautics, College of Electronic and Information Engineering, Nanjing, China, 210016
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- Qi, Nan (författare)
- KTH,Teknisk informationsvetenskap,Southeast University, National Mobile Communications Research Laboratory, Nanjing, China, 211189
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- Guan, Xin (författare)
- Tongji University, School of Software Engineering, Shanghai, China, 200092
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- Shi, Qingjiang (författare)
- Tongji University, School of Software Engineering, Shanghai, China, 200092; Shenzhen Research Institute of Big Data, Shenzhen, China, 518172
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- Xiao, Ming, 1975- (författare)
- KTH,Teknisk informationsvetenskap
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- Jin, Shi (författare)
- Southeast University, National Mobile Communications Research Laboratory, Nanjing, China, 211189
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- Wong, Kai Kit (författare)
- University College London, Department of Electronic and Electrical Engineering, London, U.K., WC1E 7JE
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(creator_code:org_t)
- Institute of Electrical and Electronics Engineers (IEEE), 2023
- 2023
- Engelska.
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Ingår i: IEEE Systems Journal. - : Institute of Electrical and Electronics Engineers (IEEE). - 1932-8184 .- 1937-9234. ; 17:4, s. 6282-6291
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- For beyond fifth-generation and sixth-generation communication, intelligent reflecting surface (IRS)/reconfigurable intelligent surface, and cell-free networks have been proposed as revolutionary technologies, which could significantly improve the connection quality and coverage to meet future communication demands for extremely massive connectivity and high reliability. In this article, a transmit/passive beamforming strategy for multi-IRS assisted cell-free multi-input-multi-output network is proposed to maximize the weighted sum-rate (WSR). Specifically, for passive beamforming of IRS, an elementwise block coordinate descent framework is applied to efficiently solve the unit-modulus constraints and reduce computation complexity greatly. Note that, every variable in our proposed algorithm can be updated with closed-form solutions and our algorithm can be applied with distributed implementation. Both analytical and simulation results demonstrate that, while guaranteeing superiority in WSR performance and information interaction cost, the proposed scheme outperforms the benchmark algorithms with closed-form solutions significantly in terms of complexity cost.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Telekommunikation (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Telecommunications (hsv//eng)
Nyckelord
- Beamforming
- cell-free network
- elementwise block coordinate descent (BCD)
- intelligent reflecting surface (IRS)/reconfigurable intelligent surface (RIS)
- weighted sum-rate (WSR) maximization
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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