Joint Physical Layer and Power Resource Scheduling for GEO Satellite Internet of Things Based on Channel Conditions

IF 4.5 3区计算机科学 Q2 TELECOMMUNICATIONS

IEEE Communications Letters Pub Date : 2026-01-01 Epub Date: 2025-10-23 DOI:10.1109/LCOMM.2025.3624374

Chunlin Zhang;Yue Liu;Deqian Wang;Chao Yu;Haoran Zhang;Peijin Hu;Ke Wang

引用次数: 0

Abstract

The application of resource allocating technology to multi-beams satellite system can effectively achieve higher throughput. This letter investigates the joint scheduling of physical layer and power resource for the Geosynchronous Earth Orbit (GEO) satellite Internet of Things (IoT). We propose the resource scheduling model aimed at maximizing system throughput by taking into account the constraints of time, frequency, and power resources and parameter optimization of the IoT Non-Terrestrial Network (NTN) channel conditions. For the multiple-choice multidimensional knapsack problem (MMKP), the non-convex optimization problem is decomposed into subproblems for each timeslot and selects the optimal set of IoT users. Specifically, we propose a joint physical layer and power resource allocation (JPPRA) algorithm based on channel conditions. Furthermore, simulation results demonstrate that the proposed approach achieves superior system capacity than other scheduling schemes.

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基于信道条件的GEO卫星物联网联合物理层与电力资源调度

将资源分配技术应用于多波束卫星系统，可以有效地实现更高的吞吐量。本文研究了地球同步地球轨道（GEO）卫星物联网（IoT）的物理层和电力资源联合调度问题。考虑到时间、频率、功率等资源约束以及物联网非地面网络（NTN）信道条件的参数优化，提出了以系统吞吐量最大化为目标的资源调度模型。对于多选择多维背包问题（MMKP），将非凸优化问题分解为每个时点的子问题，并选择最优的物联网用户集。具体而言，我们提出了一种基于信道条件的联合物理层和功率资源分配（JPPRA）算法。仿真结果表明，该方法比其他调度方案具有更高的系统容量。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Communications Letters 工程技术-电信学

CiteScore

8.10

自引率

7.30%

发文量

590

审稿时长

2.8 months

期刊介绍： The IEEE Communications Letters publishes short papers in a rapid publication cycle on advances in the state-of-the-art of communication over different media and channels including wire, underground, waveguide, optical fiber, and storage channels. Both theoretical contributions (including new techniques, concepts, and analyses) and practical contributions (including system experiments and prototypes, and new applications) are encouraged. This journal focuses on the physical layer and the link layer of communication systems.