基于定向扩散路由协议的改进  

Improved routing protocol based on directed diffusion

作　　者：苏均宇[1] 曾子维[1] 

机构地区：[1]鞍山科技大学计算机科学与工程学院,辽宁鞍山114044

出　　处：《计算机工程与设计》2007年第1期90-93,共4页Computer Engineering and Design

基　　金：辽宁省教育厅科学技术基金项目(05L002)

摘　　要：介绍了无线传感器网络中的定向扩散路由协议。针对该协议在能效方面的不足进行研究,提出一种能源高效的协议IDD。采用自由空间模型,通过控制探测数据的扩散范围,引入路径代价函数实现能量的高效利用。理论分析和仿真结果表明,与传统的定向扩散协议相比I,DD协议降低了网络中节点的能量消耗,延长了网络生存期。Directed diffusion routing protocol of wireless sensor networks is described. An improved routing protocol based on directed diffusion is presented, which is named as IDD. By controlling diffusion of exploratory messages and making use of cost function, the energy consumption can be more efficient in free space model. Theoretical analysis and simulation results indicate that IDD achieves energy saving compared to prior method and the lifetime of wireless sensor networks is prolonged.

关 键 词：无线传感器网络 定向扩散 自由空间 能量消耗 仿真 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]