一种竞争型的临近空间通信网多址接入协议仿真

Simulation of a Novel Multiple Access Protocol for Competition in Near Space Communication Network

为实现移动终端对临近空间物理链路资源的有效共享,提出将基于竞争机制的载波侦听型多址接入协议(CSMA)应用到临近空间通信网中,并采用理论推导和OPNET建模仿真的方法对其吞吐量和时延性能进行了分析。仿真结果表明,在常规的用户数量下,CSMA协议能够保证较大的吞吐量和较低的端到端时延,可以很好地应用于临近空间通信网。

To meet the need of mobile terminals sharing network channel resource effectively, CSMA （Carrier Sense Multiple Access） protocol based On competitive mechanism is applied to near space communication network. Its throughput and end to end （ETE） delay are analysed based on theoretical deduction and OPNET simulation. Simulation results show that in the ease of normal user numbers, CSMA can ensure higher throughput and lower ETE delay. Thus, CSMA can be applied effectively to near space communication network.