Đề xuất bài toán tối ưu hóa công suất cho truyền thông đường lên trong mạng tế bào nhỏ đa-ARS, mạng không phân chia tế bào, điều khiển công suất.

Abstract

Small Cell (SC) frameworks and unmanned aerial vehicles (UAVs) functioning as aerial relay stations (ARSs) represent promising advancements for next-generation wireless networks, enhancing service quality. This study focuses on the Multi-ARS Cell-Free (CF) framework, which eliminates cell boundaries, wherein a substantial number of ARSs are coordinated by the ground base station (GBS) and collaboratively serve numerous users using shared frequency and time resources. The SC model is designed such that each user is served by a single ARS selected through the ARS selection algorithm. A closed-form expression for uplink user throughput is derived, and power optimization is proposed using the Bisection algorithm. System evaluation via cumulative distribution functions (CDFs) of user throughput demonstrates that ARS selection reduces complexity, while power optimization significantly enhances throughput.