基于网络编码的传感网多径路由模型分析

Sensor Networks Multi-Path Model Analysis Based On Network Coding

针对多径路由容易产生报文乱序和丢失的现象，将网络编码技术引入到多径路由中，建立了两个基于网络编码的传感网多径路由模型。通过源节点、中继节点编码和接收端解码，在报文乱序和部分丢失的情况下仍然可以恢复出源数据包，在保证降低冗余度的前提下，提高了网络的成功交付率。使用matlab对模型进行了仿真计算，发现两种模型适合于不同规模的网络，最后，提出了一种根据网络规模选择路由的方法。

Multi-path muting prone to loss of packets out of order, and the phenomenon of network coding technology into the Chinese and multi-path,the establishment of two web-based coding of multi-path routing model for sensor networks.By the source node,relay node encoding and decoding the receiving end,packets out of order and in some eases,is still missing source packets can be recovered, in ensuring the premise of reducing redundancy, improving the network＇s successful delivery rote.Carried out using matlab simulation model and found two models for different sizes of networks,and finally, proposed a route based on network size selection method.