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سی و چهارمین کنفرانس بین المللی مهندسی برق
RIS-Aided Cooperative NOMA With Heterogeneous Users and Non-Linear SWIPT
نویسندگان :
Ali Ahmadi
1
Ali Bastami
2
1- دانشگاه صنعتی خواجه نصیرالدین طوسی
2- دانشگاه صنعتی خواجه نصیرالدین طوسی
کلمات کلیدی :
Cooperative NOMA،non-linear energy harvesting،particle swarm optimization (PSO)،reconfigurable intelligent surfaces (RIS)،SWIPT
چکیده :
In this letter, we investigate a cooperative NOMA (CNOMA) network assisted by reconfigurable intelligent surfaces (RIS) and non-linear SWIPT which serves heterogeneous users. We formulate an optimization problem to jointly optimize the power allocation, the power splitting ratio, the time slot duration, and the RIS phase shifts by considering minimum rate requirements for the users and energy harvesting (EH) constraints. To find the solution of this complex non-convex problem, we propose a low-complexity algorithm based on the particle swarm optimization (PSO) method. The simulation results show that the proposed scheme significantly improves the energy efficiency by reducing the transmit power at the access point.
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بیشتر
ثمین همایش، سامانه مدیریت کنفرانس ها و جشنواره ها - نگارش 44.7.2
