基于TDMA的无人机多址协议分析与仿真

Analysis and simulation of multiple access protocol of UAV based on TDMA

针对未来战场无人机群作战组网的特点和现有固定TDMA协议无法满足网络拓扑动态变化的缺点,引入按需分配机制,提出了一种能够支持高动态组网方式的DTDMA多址接入协议。利用相关知识对协议性能进行了理论推导和分析,重点研究了改进后协议的吞吐量和端到端时延变化。利用OPNET对协议进行了建模仿真。结果表明,DTDMA协议在不同优先级业务共存条件下较TDMA的时延和吞吐量性能有了明显的提高。

A new protocol named DTDMA which supported high dynamic networking was proposed by the introduction of DAMA in allusion to the character of UAV （Unmanned Aerial Vehicles） networking and shortcomings of fixed TDMA. The performance of protocol was analyzed theoretically, especially the throughput and end to end delay. The OPNET was used to simulate the performances of modified protocol and the results indicate that the DTAMA has got some evident advantages than TDMA on delay and throughput.