基于OPNET的低轨卫星星座通信系统仿真研究  

OPNET-based Simulation of LEO Satellite Communication System

作　　者：胡宸华 黄圣春[2] 王玲[1] 孟祥龙 HU Chen-hua;HUANG Sheng-chun;WANG Ling;MENG Xiang-long(College of Electrical and Information Engineering,Hunan University,Changsha Hunan 410082,China;College of Electronic Science,National University of Defense Technology,Changsha Hunan 410073,China;Navy Submarine Academy,Qingdao Shandong 266199,China)

机构地区：[1]湖南大学电气与信息工程学院,湖南长沙420082 [2]国防科技大学电子科学学院,湖南长沙410073 [3]海军潜艇学院,山东青岛266199

出　　处：《通信技术》2018年第10期2382-2388,共7页Communications Technology

基　　金：国家自然科学基金项目(No.61401492)~~

摘　　要：基于OPNET搭建了一个低轨道卫星星座移动通信系统仿真平台,介绍了网络拓扑、节点模型、进程模型和无线链路模型的相关设计过程,并结合STK软件生成的极地圆轨道模型,对自主设计的一套低轨星座移动通信协议进行了验证。仿真结果表明,该平台能够正确模拟LEO星座通信系统中寻呼、建链等通信过程,以及长时延、频繁切换等卫星通信的特性,为低轨星座移动通信协议研究提供了有力支撑,可为卫星通信仿真工作提供借鉴和指导。Based on OPNET, a simulation platform for LEO （Low Earth Orbit） satellite constellation mobile communication system is built up. The related design processes of network topology, node model, process model and wireless link model are introduced. Combined with the polar circular orbit model generated by STK software, a set of independently-designed LEO constellation mobile communication protocols are verified. The simulation results indicate that this platform can correctly simulate the communication process of paging and link establishment in LEO constellation communication system, as well as the characteristics of satellite communication such as long delay and frequent handover, thus to provide a strong support for the research of LEO constellation mobile communication protocol, including reference and guidance for satellite communication simulation work.

关 键 词：低轨卫星网络 通信协议 OPNET建模 无线链路 

分 类 号：TN927.23[电子电信—通信与信息系统]