Exploring the potential of swarm intelligence for optimal energy efficiency in IoT downlink system
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Từ khóa:
IoT
PSO
optimization
energy efficiency
Zero- Forcing
Beamforming
Tóm tắt
This study delves into the energy optimization problem in Internet of Things (IoT) networks. We consider the downlink from multiple antenna Gateway (GW) and single antenna IoT devices. For this challenging nonconvex problem, we initially introduced the well-known zero-forcing beamforming (ZFBF) to eliminate inter-user interference, thereby transforming the energy efficiency maximization problem into a concave-convex fractional problem. Then, instead of applying a combination of ZFBF with power allocation, we propose the Particle Swarm Optimization (PSO) algorithm to allocate power to find the optimized beamforming matrix. Through extensive numerical analysis, we demonstrate the effectiveness of our proposed scheme in terms of energy efficiency and power achieved at the GW. The results underscore the significant benefits of our approach over conventional methods, paving the way for practical and efficient energy optimization in IoT networks.
Tài liệu tham khảo
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Nguyen-Duy-Nhat, V., và H. Nguyen-Le. “Exploring the Potential of Swarm Intelligence for Optimal Energy Efficiency in IoT Downlink System”. Tạp Chí Khoa học Và Công nghệ - Đại học Đà Nẵng, vol 22, số p.h 6A, Tháng Sáu 2024, tr 41-45, doi:10.31130/ud-jst.2024.291E.
