The Modeling Of Correlated Link Shadow Fading In Multi-hop Wireless Networks Based On Typical Indoor Scenes

As the most rapid development technology in the field of wireless communication technology, Wireless multiple-hop network is more and more popular. Since it has lot of advantages such as self-organization, high reliability, easy to deploy, distributed structure and low cost, which are incomparable for traditional wireless network deployment. Wireless multiple-hop network has the broad prospects for substantial development and a major concern. At present, along the study about wireless multiple-hop network, the research on path loss is relatively mature, but little attention was paid to the shadow fading correlation, and this could lead to the missing position close link errors occurring in performance evaluation, and then may bring errors to the network node connectivity and analysis of network topology. Therefore research of shadow fading correlation characteristics of communication environment for further systematic analysis is needed in wireless multiple hops network.First of all, this article introduced the development of multiple hops network, then analyses the problems existing in the process of searching for solutions of wireless multiple hops network. It’s clear that the study of correlation to shadow fading in the wireless multiple hops network is very important, which should be given enough attention and consideration.By reviewing shadow fading correlation model of current study, deficiencies of these models can be found when considering relevant factors, limitations of these models can be found in the field of application. By introducing space loss field theory, put forward a new wireless multiple hops network shadow fading correlation model.Then select typical indoor scene and design reasonable and feasible experiment scheme, using professional i Build Net wireless network simulation software for simulation. Parameters of the shadow fading correlation model can be got from experimental results, so as to get shadow fading correlation model of typical indoor scenarios.Finally, experimental verification of the model, using i Build Net software simulation experiment, and extracting the result of the experiment data processing by different geometric relationships, we can get link to the correlation, with the correlation coefficient calculated by the shadow fading correlation model, this paper compares and analyzes the feasibility of the model. Both can well consistent, which shows that the proposed theoretical model is reasonable.This study is based on typical indoor scene shadow fading correlation model. The model can be used in the evaluation of typical indoor scene shadow fading correlation, which can provide guidance and reference for layout of multiple hops network node, choice of routing and performance assessment.