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Paper detail

Sum Rate Optimization for Two Way Communications with Intelligent Reflecting Surface

In this letter, an intelligent reflecting surface (IRS) enhanced full-duplex MIMO two-way communication system is studied. The system sum rate is maximized through jointly optimizing the source precoders and the IRS phase shift matrix. Adopting the idea of Arimoto-Blahut algorithm, the non-convex optimization problem is decoupled into three sub-problems, which are solved alternatingly. All the sub-problems can be solved efficiently with closed-form solutions. In addition, practical IRS assumptions, e.g., discrete phase shift levels, are also considered. Numerical results verify the convergence and performance of the proposed scheme.

preprint2020arXivOpen access
Yu ZhangCaijun ZhongZhaoyang ZhangWeidang Lu
eess.SP
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Yu ZhangCaijun ZhongZhaoyang ZhangWeidang Lu

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