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Research on Entity Mobility Models of Ad Hoc Network

Author: LiuTieYuan
Tutor: GuTianLong
School: Guilin University of Electronic Science and Technology
Course: Applied Computer Technology
Keywords: Ad Hoc Networks Mobility Model Probability distribution Network protocol Network simulation
CLC: TN929.5
Type: Master's thesis
Year: 2010
Downloads: 71
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Abstract


Mobile model is the basis of the Ad Hoc network simulation , used to describe the node mobility characteristics . Build Ad Hoc network simulation testing framework , the correct understanding and analysis of simulation results , analysis of the mobile model is an important basic work . The entity mobility model is an important branch of the mobile model . Entity mobility model is simple and easy to implement , often widely used in the Ad Hoc network simulation . MRP model is an the memory characteristics entity mobility model . Compared to other mobile model of Ad Hoc Networks , stability and authenticity of node mobility has a significant advantage . In this paper, the MRP model as the starting point , in-depth study of the Ad Hoc network entity mobility model . The main results are as follows : ( 1) gives the the MRP mobile model node space probability distribution . Specific description of the the MRP model node mobility characteristics and mathematical derivation , come to the the MRP model node in the area and two-dimensional area of the one-dimensional probability distribution characteristics, and further summarizes the probability parameter q value and moves the number of nodes in space probability distribution influence of the nature of the derived model is verified by Matlab simulation tools . (2 ) simulation to evaluate the impact of different entity mobility models on the performance of network routing protocols . With NS-2 simulation software , different entity mobility models set the same movement speed routing protocol performance simulation analysis first , followed by simulation analysis of different entity mobility models in the pause time set the same routing protocol performance . ( 3) the physical movement of an improved model . Model for MRP mobile nodes in the simulation process can not be suspended and only the lack of uniform motion , put forward a way to better reflect the reality of the node movement law , independent controllable parameters relatively strong mobile entity based on Markov chain model ( Time-Speed ??Markov Random Path mobility model, referred to as TSMRP ) , given in detail the definition of the mobile models , algorithms and simulation to achieve , and with the original MRP model as well as the RWP model widely used in NS-2 under simulated and compared .

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Wireless communications > Mobile Communications
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