Grid-based directed diffusion for wireless sensor networks

作     者：毕嘉娜 Ji Zhenzhou Cao Zhiyan 

作者机构：Department of Computer Science and Technology Harbin Institute of Technology Harbin 150001 P.R. China 

出 版 物：《High Technology Letters》 (高技术通讯（英文版）)

年 卷 期：2008年第14卷第4期

页      面：342-347页

核心收录：

学科分类：080904[工学-电磁场与微波技术] 0810[工学-信息与通信工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 080202[工学-机械电子工程] 08[工学] 080402[工学-测试计量技术及仪器] 0804[工学-仪器科学与技术] 081001[工学-通信与信息系统] 0802[工学-机械工程] 

基　　金：the National High Technology Research and Development Programme of China(No.2002AA142020) the National Natural Science Foundation of China(No.60475012) 

主　　题：wireless sensor networks directed diffusion broadcast grid cluster 

摘      要：Directed diffusion is a data dissemination protocol for wireless sensor networks. In directed diffusion, flooding is used for dissemination of interest and exploratory data, which will bring broadcast storm resulting in substantial energy consumption of networks. A grid-based directed diffusion is presented to improve the energy efficiency of directed diffusion. Virtual geographic grid clusters are constructed by self-organization of nodes using geographic location information. The flooding of interest and exploratory data of original directed diffusion is limited in cluster head nodes. The simulation results and testbed experiments show that the method effectively reduces the network energy consumption. This gain is not achieved at the cost of either delivery ratio or the delay. Importantly, the decreased load also leads to a better delivery ratio and lower delay.