太赫兹科学与电子信息学报Issue(5)：707-711,5.DOI:10.11805/TKYDA201305.0707
面向LTE的静止轨道卫星通信系统随机接入方式
Random access method for GEO satellite communication system-oriented LTE
摘要
Abstract
According to Long Term Evolution(LTE) system and satellite mobile communication system integration of access problems,a Random Access Method is presented for Geosynchronous Orbit(GEO) Satellite Communication system-oriented LTE. Based on the random access design in S-UMTS system and LTE system, a new structure of access preamble and slots is proposed and a new procedure of transmitting access request corresponding to the new structure is suggested. In the new structure, the problems such as long access time and different long transmission delays in GEO satellite communication environment are improved by increasing the length of access slot and adding control information to access preamble. The proposed access procedure effectively improve the performance of the access time. Simulation results show that, the proposed scheme is suitable to the GEO satellite communication system-oriented LTE.关键词
长期演进计划/一种随机接入系统/静止轨道/保护间隔/接入前导/接入流程Key words
Long Term Evolution/Additive Link On-line Hawaii(ALOHA) system/Geosynchronous Orbit/guard time/access preamble/access procedure分类
信息技术与安全科学引用本文复制引用
陈坤汕,王大鸣,徐尧..面向LTE的静止轨道卫星通信系统随机接入方式[J].太赫兹科学与电子信息学报,2013,(5):707-711,5.基金项目
国家科技重大专项基金资助项目(2011ZX03003-003-02；2009ZX03003-008-02)；国家高技术研究发展计划基金资助项目(“863”计划)(2009AA011504) （2011ZX03003-003-02；2009ZX03003-008-02）
