Dissertation > Excellent graduate degree dissertation topics show

Research of Load-balancing Routing Protocols in Wireless Sensor Networks

Author: LiuShaoQing
Tutor: ChenZuJue
School: Jiangsu University
Course: Communication and Information System
Keywords: Wireless sensor networks Load balancing Routing Protocol Grid switch Hierarchy
CLC: TN915.04
Type: Master's thesis
Year: 2010
Downloads: 113
Quote: 0
Read: Download Dissertation

Abstract

Wireless sensor network data center to form the forwarding path, the node energy and resources are limited, the design of energy-efficient, low latency, load balancing, and other special requirements of the routing protocol, wireless sensor network research focus. For large-scale sensor network node, three load balancing routing protocols: 1 Double Sink node load balancing routing protocol (EDRP) EDRP agreement to build the network in Double Sink node environment, and forwarded to the the same Sink node transmission in order to minimize the node on the path to the load, increase the residual energy of contrast mechanisms on the basis of the consideration of cost routing (MCFA). The mechanism calculated the cost of the cost of each node to Sink node, the nodes transmit data to Sink node elected to each node and the second near the Sink node and clustering. Downstream node as its next hop node node node residual energy will downstream data transfer compared, dynamically select the higher residual energy, and gradually establish the transmission path to the recent times nearly Sink node. The agreement applies to Sink node concentrated occasions. Dynamic trellis Network Load Balancing Routing Protocol (GSRP) GSRP agreement network into the side length of grid and transmitted in accordance with a pre-set direction between adjacent grid intersection node. The Sink nodes query, local flooding to the adjacent cross-point query data. To avoid persistent queries on a single transmission path crossover node excessive consumption of energy, GSRP using the the grid switching mechanism to periodically change the grid structure, the grid intersection point alternately for transmission, the crossover node load balancing on the single transmission path. The agreement applies to mobile Sink node delay sensitive occasions. Hierarchical chain load balancing routing protocol (HCRP) to effectively overcome the adjacent node transmission distance is too long and cause too much energy consumption, HCRP network is divided into different regions within regions to multiple greedy chains algorithm constructs a layered type chain collection architecture. In data transfer, HCRP by combining grid in order to improve the utilization of idle nodes, and the number of nodes in the uneven distribution of nodes by cutting squares balanced box, effectively balancing network energy consumption. The agreement applies to the distribution of nodes uneven under persistent query occasions. OMNeT simulation platform to verify the effectiveness and feasibility of the three protocols, simulation testing and comparative analysis of the three protocols, and results the EDRP compared to GRAB effectively enhance the network lifetime of about 30%, the average delay is reduced to 75 %, in each round the remaining energy savings of up to 30%; GSRP than TTDD effectively enhance about 40% of the network lifetime, the average delay decreased to 70% the round remaining energy savings of up to 20%; HCRP than COSEN effectively enhance network lifetime of about 20%, and the average delay is reduced to 75% the round remaining energy savings of up to 15%. Three different applications can effectively achieve load balancing with lower latency and longer network lifetime.

Related Dissertations

CLC: > Industrial Technology > Radio electronics, telecommunications technology > Communicate > Communication network > General issues > Communication protocols, communication protocols
© 2012 www.DissertationTopic.Net Mobile