[1]陈蕾 肖甫.面向卫星网络的扩频多址接入控制方法[J].计算机技术与发展,2010,(12):240-243.
　CHEN Lei,XIAO Fu.Spread Spectrum Multiple Access Control Method for Satellite Network[J].,2010,(12):240-243.
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面向卫星网络的扩频多址接入控制方法()
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《计算机技术与发展》[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2010年12期
页码:
240-243
栏目:
应用开发研究
出版日期:
1900-01-01

文章信息/Info

Title:
Spread Spectrum Multiple Access Control Method for Satellite Network
文章编号:
1673-629X（2010）12-0240-04
作者:
陈蕾 肖甫
南京邮电大学计算机学院
Author(s):
CHEN Lei; XIAO Fu
College of Computer,Nanjing University of Posts and Telecommunications
关键词:
卫星通信; 扩频时隙ALOHA; 主动重传; 随机多址接入协议
Keywords:
satellite communication;  spread spectrum slotted ALOHA;  active repeat transmission;  random multiple access protocol
分类号:
TN914.5
文献标志码:
A
摘要:
针对卫星网络传输时延长、通信时间短和突发业务量大的特点,首先设计了高优先级、高实时性业务主动重传策略,然后在此基础上提出了一种面向卫星网络的主动重传扩频时隙ALOHA多址接入控制方法。该方法融合了扩频通信、S-ALOHA随机访问控制协议和主动重传策略的优点,能满足特殊环境中提供＂区分服务＂的实际要求。最后的仿真结果不仅证实了该方法的吞吐性能比时隙ALOHA系统有了很大的提高,而且能以较小的吞吐量损失为代价增加高优先级业务的成功发送率
Abstract:
For satellite network with high propagation delay,short communication time and sudden large amount of business,an active repeat transmission strategy applicable to high-priority and real-time business was designed,and based on it,the multiple access control method of active repeat spread spectrum slottedALOHA（AR-SS-S-ALOHA） for satellite communication network was presented.The proposed method combines the advantages of spread spectrum communication,S-ALOHA random access control protocol and active repeat transmission strategy,and can provide ＂differentiated services＂in special circumstances.Finally,computer simulations demonstrate that AR-SS-S-ALOHA has not only better throughput performance than that of S-ALOHA,but also increases effective sending rate of high-priority business with a slight loss of throughput

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备注/Memo

备注/Memo:
国家自然科学基金（60703086 60973140）; 国家高科技“863”项目（2007AA0820）; 江苏省博士后基金（0801019C）陈蕾（1975-），男，博士，讲师，研究方向为卫星网络通信、信息安全；肖甫，博士后，副教授，研究方向为无线传感器网络、虚拟现实、多媒体技术
更新日期/Last Update: 1900-01-01