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The Research and Improvement of LEACH Protocol for Wireless Sensor Networks

Author: FangYuJie
Tutor: WeiHongLi
School: Xi'an University of Technology
Course: Communication and Information System
Keywords: Wireless sensor networks LEACH protocol Cluster head election algorithm Energy consumption NS2 simulation
CLC: TN915.04
Type: Master's thesis
Year: 2011
Downloads: 120
Quote: 1
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Abstract


Wireless sensor networks is one of the hot spots of the current research in the field of communication . It is capable of real-time monitoring and gathering information network distribution area detection object , objectively real and effective physical has a very broad application prospects in industrial and agricultural production , military , medical , environmental monitoring , and many other fields . Wireless sensor network node energy is limited and can not add features to become a bottleneck in the development of wireless sensor networks , the focus of this study is how to make efficient use of wireless sensor networks energy . On the basis of analysis of the existing wireless sensor network routing protocols , focuses on low power the Adaptive Clustering layered agreement (Low Energy Adaptive Clustering Hierarchy, LEACH) and its improvements . Major research and improvement work , including the following aspects : ( 1 ) study the course of development of wireless sensor networks , the concept of the architecture , features , and network protocol architecture and routing protocol classification , and analysis of the key technologies of wireless sensor networks compare the performance and advantages and disadvantages of foreign scholars several representative routing protocols . ( 2 ) This article choose LEACH protocol as a research focus in-depth study of the LEACH protocol principle as well as the formation process , and the analysis of its problems . Energy consumption The uneven and node premature death LEACH protocol proposed LEACH protocol improvement program . The program takes into account the energy consumption of nodes in the clustered positioning , proceed from the cluster-head election algorithms and data fusion , the survival time , energy consumption , base station data reception three cluster head election algorithm analysis improvements . ( 3) agreement the original LEACH protocols and improved by the NS2 simulation platform for simulation , survival time , energy consumption , base station data received three simulation results are compared and analyzed , the simulation results show that the improved protocol significantly extended network survival time, and to effectively reduce the node energy consumption and reduce the amount of the base station receives the data .

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Communicate > Communication network > General issues > Communication protocols, communication protocols
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