基于多信道优先级统计的战术数据链MAC协议  

A MAC Layer Protocol of Tactical Data Link Based on Multi-channel Priority Satistics

作　　者：张红梅[1] 彭沙沙[1] 赵玉亭 卞东亮[1] 

机构地区：[1]空军工程大学理学院,西安710051 [2]国防科技工业(西北)特种制造技术研究应用中心,西安710072

出　　处：《火力与指挥控制》2014年第8期137-141,共5页Fire Control & Command Control

基　　金：空军武器装备科研基金(No.KJ2013117);陕西省电子信息系统综合集成重点实验室基金资助项目(No.201107Y16)

摘　　要：为了满足对移动目标实现精确打击而提出的对时敏信息可靠传输的要求,提出一种基于多信道优先级统计的MAC协议(MCPS-MAC)。MCPS-MAC协议将不同优先级业务发送的门限阈值与反应信道忙闲状态的信道占用统计值作为判定数据包是否能够发送的条件,从而极大减少信道冲突,降低数据发送的时延,有效缓和了网络的流量激增导致网络超载的问题,并且保证通信网络中优先级较高的数据包仍然能够成功地发送。仿真结果表明,随着网络节点增多和业务量的增大,Link-16数据链延时急剧增大,导致严重的丢包率,而与之相比较,MCPS-MAC协议的端到端延时恒定在3 ms～4 ms内,能够满足高业务量网络的要求,并保障数据包一次发送的成功率不低于95%。To satisfy the requirement of sensitive information with reliable transmission when realizing precision strike to moving target,a MAC protocol based on Multi channel priority statistics（MCPS-MAC）is proposed in this paper. MCPS-MAC protocol uses different priorities thresholds and channel occupancy statistics to determine whether Data packets should be sent or not. Thereby,the method reduce greatly channel conflict and the data transmission delay,ease effectively the network overload problem caused by the traffic surge,and ensure the high priority packet can still be transmitted successfully in a communication network. The simulation results show that,with the increase of network nodes and Network traffic,the Link-16 data link delay increases rapidly,unable to carry the heavy traffic and lead to loss of the severe packet. However,compared with the Link-16 data link,MCPS-MAC protocol End to End Delay in 3 ms^4 ms steadily,which can satisfy protocol requirements of high-traffic network and keep the success rate of sending not less than 95%at every time.

关 键 词：多信道优先级统计 自组织网络 介质访问控制 仿真 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]