Dissertation > Excellent graduate degree dissertation topics show

The Research and Improvement of LEACH Protocol

Author: HuangLi
Tutor: WuXinHua
School: Wuhan University of Technology
Course: Computer Science and Technology
Keywords: Wireless sensor networks Cluster head marginalized Maximum coverage area Centroid NS2 LEACH
CLC: TP212.9
Type: Master's thesis
Year: 2011
Downloads: 121
Quote: 1
Read: Download Dissertation

Abstract


With micro-electromechanical systems (Micro-Electro-Mechanism System, MEMS), system-on-chip (System on Chip, SOC), wireless communications and low-power embedded technology, the rapid development of wireless sensor networks bred (Wireless Sensor Networks, WSN ), and its characteristics of low-power, low-cost, distributed and self-organizing has brought a revolution in data-aware. Its has a broad application prospects, so the study design or optimization more efficient network protocol for wireless sensor networks to extend the life of its network to enhance its performance (such as packet successful delivery rate, energy conservation, etc.) is very important. LEACH (Low Energy Adaptive Clustering Hierarchy) routing protocol, depth profiling, wireless sensor networks it as a classic hierarchical clustering routing protocol, protocol specific algorithm is divided into two stages: cluster head selection phase and stability session. In the first phase, the cluster head selection algorithm to only consider taking points from a probability point of view as to the fairness of the cluster head, without node energy value, the cluster head marginalized and cluster node data transmission distance of important factors into account. Therefore, for node energy threshold in the original agreement in the proportion of node residual energy and initial energy; cluster head marginalization on the basis of the original agreement, adding that the distance from the node to the center, which reduce the marginalization of the cluster head, increasing the coverage of the cluster head, LEACH-ED (Low Energy Adaptive Clustering Hierarchy-Energy and Distance) optimized protocol; in order to reduce the data transmission distance of the nodes in the cluster, in the first re-select the second choice clusters based on the cluster cluster head make it as close as possible to the center of mass of clusters, in order to reduce the data transmission distance of the node to the cluster head, reducing the energy consumption of nodes on a solution to this problem, this paper, the LEACH- DC (Low Energy Adaptive Clustering Hierarchy-Distance and Centroid) to optimize the protocol. Above three modifications NS2 (Simulation Network, Version2)-based simulation platform, extended LEACH protocol procedures to install and modify. Done a lot of analysis of simulation experiments for improved agreement with the original agreement, in order to ensure the accuracy of the simulation results, the use of two different sensor nodes distributed file simulation. The results verify LEACH-ED and LEACH-DC, indeed effectively extend the network lifetime, improve network performance.

Related Dissertations

  1. The Design and Realization of NS2-based PeerCast Simulation Platform,TP311.52
  2. Gradual Event Detection in Sensor Networks,TP212.9
  3. Multiple Pairwise Keys Management Protocol of Function Node-Based for Wireless Sensor Networks,TP212.9
  4. Research of Secure Distributed Cluster Wireless Sensor Network Routing Based on LEACH,TP212.9
  5. Research of Multicast Protocol in Wireless Sensor Networks,TN929.5
  6. Research and Improvement of WSNs Routing Algorithm Based on Geographic Location,TN929.5
  7. Based on ZigBee wireless sensor network research,TN929.5
  8. Research on MAC Protocol for WIreless Sensor Network,TN915.04
  9. The Research on Localization Algorithm of Wireless Sensor Networks,TN929.5
  10. The Research and Application of Stochastic Routing in Wireless Sensor Networks,TN929.5
  11. The Study of Mine Gas Monitoring System Based on Wireless Sensor Networks,TN929.5
  12. Research on Intrusion Detection Technology of Wireless Sensor Networks Based on Behavior Trust,TP212.9
  13. Region-based wireless sensor network key management scheme for research,TP212.9
  14. HCV NS2TP Gene Regulation Mechanism,R512.63
  15. Information-oriented physical systems IEEE802.15.4MAC protocol analysis and optimization,TP212.9
  16. Multilayer structure based WSN routing protocol for heterogeneous clusters,TP212.9
  17. Soccer Data Acquisition System,TP212.9;TP274.2
  18. With the mobile node localization algorithm for wireless sensor networks,TP212.9
  19. A Study of Multi-Path Routing Algorithm of Wireless Sensor Networks Based on Energy Balance,TP212.9
  20. Study of the Greenhouse Environment Supervisory System Based on WSN,TP274
  21. Research on Cluster-based Routing Protocols in Wireless Sensor Network,TP212.9

CLC: > Industrial Technology > Automation technology,computer technology > Automation technology and equipment > Automation components,parts > Transmitter ( converter),the sensor > Sensor applications
© 2012 www.DissertationTopic.Net  Mobile