摘要
临近空间通信网是未来空天信息网的重要一环。在临近空间通信网中存在大量的突发性业务,竞争类多址接入协议是应对突发性接入业务的主要方法。在建立的仿真模型中,通过MATLAB软件对两种典型的竞争类多址接入协议,时隙ALOHA(S-ALOHA)协议和非持续性载波监听(np-CSMA)协议进行仿真,比较两种协议在临近空间通信网中性能随突发性业务量增加而形成的变化趋势。通过仿真结果分析可以看出,np-CSMA协议相比于SALOHA更适合作为临近空间通信网高业务量条件下的多址接入协议。
Near space communication network is an important part of the space information network in the future.There are a large number of bursty traffic in the near space and competitive multiple access protocol is the main measure to solve.In the simulation model,through the MATLAB simulation of the Solt-ALOHA （S-ALOHA）protocol and Non persistent CSMA （np-CSMA）protocol,compare the properties with bursty traffic increases the change trend in the near space network.According to the simulation results,np-CSMA protocol is more suitable for near space network than S-ALOHA protocol.
出处
《电子测量技术》
2015年第9期135-138,共4页
Electronic Measurement Technology
