期刊
IEEE TRANSACTIONS ON COMMUNICATIONS
卷 70, 期 4, 页码 2707-2721出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TCOMM.2022.3142290
关键词
Satellites; Satellite broadcasting; Low earth orbit satellites; Throughput; Probability; Power system reliability; Fading channels; Satellite communications; Poisson limit theorem; outage probability; throughput maximization; stochastic geometry
资金
- Institute of Information & Communications Technology Planning & Evaluation (IITP) - Korea government (MSIT) [2021-0-00847]
This paper investigates downlink low Earth orbit (LEO) satellite communication systems, where multiple LEO satellites are uniformly distributed according to a homogeneous binomial point process (BPP). By analyzing distance distributions and serving satellite cases, the exact outage probability is derived for system throughput maximization under satellite-visibility and outage constraints.
In this paper, we consider downlink low Earth orbit (LEO) satellite communication systems where multiple LEO satellites are uniformly distributed over a sphere at a certain altitude according to a homogeneous binomial point process (BPP). Based on the characteristics of the BPP, we analyze the distance distributions and the distribution cases for the serving satellite. We analytically derive the exact outage probability, and its approximated expression is obtained using the Poisson limit theorem. With these derived expressions, the system throughput maximization problem is formulated under the satellite-visibility and outage constraints. To solve this problem, we reformulate it with bounded feasible sets and propose an iterative algorithm to obtain near-optimal solutions. Simulation results perfectly match the derived exact expressions for the outage probability and system throughput. The analytical results of the approximated expressions are fairly close to those of the exact ones. It is also shown that the proposed algorithm for the throughput maximization is very close to the optimal performance obtained by a two-dimensional exhaustive search.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据