Potential field based hole detour routing algorithm in wireless sensor networks  

作　　者：李凤荣 Li Lei Hu Maolin 

机构地区：[1]Key Laboratory of Wireless Sensor Network ＆ Communication, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, P. R. China

出　　处：《High Technology Letters》2011年第2期119-125,共7页高技术通讯（英文版）

摘　　要：The current geographic routing protocols arise data congestion if a multi-flow bypasses a hole simultaneously and excessive energy consumption of hole boundary nodes because these protocols tend to route data packets along the boundaries of void areas （holes） by perimeter routing scheme.This scheme possibly enlarges the holes phenomenon （called hole diffusion problem） and shortens the life span of the network. A novel geographical routing algorithm based on a potential field approach （PFA） is proposed to deal with multiple holes scenario and restrict data to forward near boundary of a hole. That is, data packets are attracted to its sink and are repulsed away from the hole （s）. Simulation results show that PFA is superior to other protocols in terms of packet delivery ratio, network lifetime.

关 键 词：geographic routing perimeter routing scheme hole diffusion potential field network lifetime 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置] TP393[自动化与计算机技术—控制科学与工程]