Alternating Beamforming With Intelligent Reflecting Surface Element Allocation

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Intelligent reflecting surface (IRS) has become a promising technology to aid next generation wireless communication systems. In this letter, we develop an alternating beamforming technique with a novel concept of IRS element allocation for multiple-input multiple-output systems when a base station supports multiple single antenna users aided with a single IRS. Specifically, we allocate each IRS element separately to each user, thus, in the beamforming stage allowing the IRS element only consider a single user at a time. In result to this separation, the complexity is vastly decreased. The proposed beamforming technique tries to maximize the minimum rate of all users with minimal complexity. In the numerical results, we show that the proposed technique is comparable to the convex optimization-based benchmark with sufficiently less complexity.
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Issue Date
2021-06
Language
English
Article Type
Article
Citation

IEEE WIRELESS COMMUNICATIONS LETTERS, v.10, no.6, pp.1232 - 1236

ISSN
2162-2337
DOI
10.1109/LWC.2021.3062992
URI
http://hdl.handle.net/10203/286305
Appears in Collection
EE-Journal Papers(저널논문)
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