短波地空网中一种动态TDMA协议设计与仿真

发布时间：2018-02-02 11:49

  本文关键词： 短波地空网 邻居时隙 时分多址　出处：《计算机应用研究》2017年03期 　论文类型：期刊论文

【摘要】：针对传统TDMA网络节点间业务量不均匀时,会造成信道资源严重浪费的问题,设计了一种基于邻居时隙调动的短波地空网动态TDMA协议(NTR-TDMA),以可靠性较高的地面节点作为控制中心,实现时隙分配可控下的动态利用。提出了邻居时隙调动算法(NTR-ALG),地面节点根据时隙估计过程后生成的节点时隙请求数,调动相邻业务时隙节点间的空闲时隙,重新划分节点业务时隙界限。利用OPNET平台进行性能仿真,并与HFTP协议和TDMA协议作了对比分析。仿真结果表明,NTR-TDMA相比HFTP协议和TDMA协议,在消息投递率、平均时延和吞吐量方面具有更优异的性能。
[Abstract]:When the traffic between nodes in traditional TDMA network is not uniform, it will cause serious waste of channel resources. In this paper, a dynamic TDMA protocol based on neighbor time slot is designed for dynamic TDMA protocol of HF ground to air network. The ground node with high reliability is used as the control center. In order to realize the dynamic utilization of time slot allocation under controllable control, a neighbor slot transfer algorithm is proposed, and the number of slot requests generated by the ground node according to the time slot estimation process is proposed. The idle time slots between adjacent service slot nodes are mobilized, and the service slot boundaries of the nodes are re-divided. The performance simulation is carried out using the OPNET platform. Compared with HFTP protocol and TDMA protocol, the simulation results show that NTR-TDMA is compared with HFTP protocol and TDMA protocol in message delivery rate. Better performance in terms of average delay and throughput.
【作者单位】： 空军工程大学信息与导航学院;中国电子科技集团公司第三十研究所;
【基金】：国家自然科学基金资助项目(61302153)
【分类号】：TN915.04
【正文快照】： 为了节点有效利用信道资源,一般通过媒质接入控制(media access control,MAC)协议来协调节点接入无线信道的时间[1]。短波数据链的组网接入技术主要以轮询、令牌环以及TDMA为主[2]。轮询[3]方式时延大,不能有效地满足战术消息的实时性传输需求。令牌环[4]方式存在着令牌传递开，

本文编号：1484437