一种应用于桥载设备监控网络CSMA/CA机制算法  

A Algorithm CSMA/CA Mechanism Used in Bridge Monitoring Network

作　　者：林家泉[1] 郭慧芬[1] 程绪宇 

机构地区：[1]中国民航大学航空自动化学院,天津300300

出　　处：《计算机测量与控制》2015年第4期1279-1281,1284,共4页Computer Measurement &Control

基　　金：中央高校基本科研业务中国民航大学专项(3122013C015);天津市应用基础与前沿技术研究计划(自然科学基金)(13JCYBJC42300)

摘　　要：在机场桥载设备在线监测管理网络的现场应用测试中,针对网络突发事件中高优先级节点传输延时长,节点能耗利用率低的问题,采用基于优先级调度策略思想的网络节点能量优化机制,对网络MAC层协议中的CSMA/CA算法参数做出调整,达到数据快速传输的目的,利用NS2软件进行网络仿真,结果表明该方法提高了高优先级节点的信道访问率,均衡了网络能耗并延长了网络生命周期。For long transmission delay of emergency high priority node and low node energy consumption utilization ratio in on-- line Management ＆ Monitoring System of CPU exposed in field testing at the airport, energy optimization mechanism based on priority scheduling approach is adopted to adjust the parameters of CSMA/CA algorithm on MAC layer protocol of wireless sensor network, can deal with the above issues and achieve the target of fast data transmission. At last, NS2 is applied to simulate network. The experimental result shows that the access rates of high priority node is improved, network consumption is balanced and the network life cycle is extended.

关 键 词：MAC CSMA/CA 优先级 能耗 

分 类 号：E926.3[军事—军事装备学]