基于干扰动态性建模的MHWN多路径路由协议  

MHWN multipath routing protocol based on dynamic interference modeling

作　　者：阚保强[1,2] 范建华[1] 卢紫毅[1] 郭明[1] 李冉[1] 成洁[1] 

机构地区：[1]中国人民解放军理工大学南京电讯技术研究所,南京210007 [2]94777部队

出　　处：《中国科学：信息科学》2013年第11期1483-1495,共13页Scientia Sinica(Informationis)

基　　金：国家自然科学基金(批准号:61201216);中国博士后科学基金(批准号:201150M1512);国防科技重点实验室基金(批准号:9140C020302110C0206)资助项目

摘　　要：作为无线网络实现普适性的有效架构,多跳无线网络(MHWN)逐渐成为一个研究热点.但MHWN固有的媒质开放性、多跳性,干扰威胁也更加严峻.如何实现干扰条件下的可靠组网,成为MHWN研究的棘手课题.传统的方法多是基于干扰存在二元性来实现路由的优化选择,但这忽略了实际无线网络中,干扰往往是动态的.为此,本文提出了一种基于干扰动态性建模并融合多路径的路由算法.协议通过网络干扰动态性检测,利用干扰活跃度值获取遭受干扰最小路径,从而可有效提高网络抗干扰能力并极大降低源重路由次数.文中对协议的实现方法给出了详细的阐述,并基于网络仿真软件NS2对协议进行了较全面仿真比较,结果表明该方法相比已有协议不仅具有更好的路由抗干扰性能,同时在多业务流的冲突碰撞中也有很好路由优化能力.In recent years, framework based on MHWN （multi-hop wireless network） mechanism has attracted much attention for its unique role in last one-mile communications. However, the natural characteristics of MHWN, such as broadcast nature of wireless medium and multi-hop network architecture, make malicious at- tackers more active. In jammed situations, how to ensure robust network service becomes a critical problem in MHWN. To meet this challenge, novel interference avoidance mechanisms are well concerned in this paper. And a proactive multipath routing protocol based on measuring interference dynamic is proposed. The proposed mech- anisms can achieve higher robust anti-jamming paths and less reroute request times in MHWN by the routing Interference Activity （IA） metric. Based on NS2, simulations are completed thoroughly. The results show that the proposed mechanisms can provide more robust anti-jamming paths for MHWN than other protocols.

关 键 词：多跳无线网络 干扰 动态性 多路径 路由 

分 类 号：TN929.5[电子电信—通信与信息系统]