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Research on Routing Protocol Based on QoS Constraint in Wireless Sensor Network

Author: LuDi
Tutor: LiLaYuan
School: Wuhan University of Technology
Course: Computer Science and Technology
Keywords: Wireless sensor networks QoS routing protocols QoS constraints Energy consumption NS2 simulation
CLC: TN915.04
Type: Master's thesis
Year: 2011
Downloads: 118
Quote: 1
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Abstract


Wireless sensor networks (Wireless Sensor Network, WSN) is an emerging communication technologies along with the development of sensor technology, radio communications technology, computer network technology. As wireless sensor networks are generally large-scale, self-organizing, small volume, wireless, and low cost, is often applied to the objectives of monitoring, data acquisition and processing tasks. In recent years, the rapid development of wireless sensor networks, its scope of application widening until now widely infiltrated all areas of daily life: early and often used in the field of military and environmental monitoring; same time, along with the development of multimedia technology, it is proposed new requirements for real time and reliability of wireless sensor networks. So how in the limited resources of wireless sensor network to provide QoS protection has become urgent to solve the key problem. First, the basic concepts of wireless sensor networks simple; Then, through a combination of existing results at home and abroad, around wireless sensor networks with QoS constraints routing technology-related issues were discussed. In this paper carried out the following work: (1) This paper analyzes the characteristics of QoS routing in wireless sensor networks, the design goal of wireless sensor networks QoS metric selection methods and assessment methods, the design concept of QoS routing strategies and other aspects; compare and analyze the strengths and weaknesses of the existing routing protocol for wireless sensor networks that provide QoS guarantee and Scope. (2) In this paper, based on energy-constrained wireless sensor network routing technology research, combined with the the clustering routing mechanism, proposed a new energy-constrained wireless sensor network routing protocol LEACH-AD by the agreement of the clusters improvements in algorithms and data transmission, balance the network load to meet the demand for energy confinement, and extend the overall life of the network; comparison LEACH-AD, LEACH and LEACH-C by simulation experiments. (3) In this paper, the requirements of QoS constraints in resource-constrained wireless sensor networks, a new GA-QoS QoS constraint-based routing protocols. Under the agreement to meet the QoS requirements of specific applications to achieve minimum energy consumption QoS routing discovery method; achieve network load balancing and node selection and scheduling mechanism proposed by the agreement. Finally, NS2 simulation experiment to combine the existing QoS classic routing protocols, respectively, from the network delay, jitter, packet loss, network life GA-QoS, SPEED, RelnForM compared. This topic has been funded by the following items: the National Natural Science Foundation of China (Grant No.: 60970064), National Basic Research Program (2011CB302601), Open Foundation of State Key Laboratory of Software Development Environment (NO.SKLSDE-2011KF-01 ), New Century Excellent Talents Support Program (NO: NCET-08-0806), the Fok Ying Tung Education Fund of the Young Teachers' Fund (NO.121067), central universities Basic Research Fund (2010 - Ⅱ -003) and national 863 high-tech funded research program (NO.2009AA043303).

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