Multiuser Full-Duplex Two-Way Communications via Intelligent Reflecting Surface
نویسندگان
چکیده
Low-cost passive intelligent reflecting surfaces (IRSs) have recently been envisioned as a revolutionary technology capable of reconfiguring the wireless propagation environment through carefully tuning reflection elements. This paper proposes deploying an IRS to cover dead zone cellular multiuser full-duplex (FD) two-way communication links while suppressing user-side self-interference (SI) and co-channel interference (CI). Based on information exchanged by base station (BS) all users, this approach can potentially double spectral efficiency. To ensure network fairness, we jointly optimize precoding matrix BS coefficients maximize weighted minimum rate (WMR) subject maximum transmit power unit-modulus constraints. We reformulate non-convex problem decouple it into two subproblems. Then optimization variables in equivalent are alternately optimized adopting block coordinate descent (BCD) algorithm. In order further reduce computational complexity, propose minorization-maximization (MM) algorithm for optimizing coefficient vector defining minorizing functions surrogate problems. Finally, simulation results confirm convergence efficiency our proposed algorithm, validate advantages introducing improve coverage blind areas.
منابع مشابه
Multiuser Full-Duplex Communication
The inevitable high bandwidth requirement in the future cellular network has made researchers to come up with revolutionary ideas in recent times. One such idea is the introduction of full-duplex (FD) communication. A FD systems make the simultaneous in-band transceiving feasible, i.e, simultaneous uplink and downlink operation using the same spectrum resources. In recent years, extensive work ...
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This work was supported by the key project of the National Natural Science Foundation of China (No. 61431001), the 863 project No. 2014AA01A701, Program for New Century Excellent Talents in University (NECT-12-0774), the open research fund of National Mobile Communications Research Laboratory Southeast University (No. 2013D12), Fundamental Research Funds for the Central Universities, and the Fo...
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ژورنال
عنوان ژورنال: IEEE Transactions on Signal Processing
سال: 2021
ISSN: ['1053-587X', '1941-0476']
DOI: https://doi.org/10.1109/tsp.2021.3049652