【摘要】 建立了基于常微分方程的传染路由协议分析模型,提出了基于网络编码的传染路由协议,并与传统传染路由协议进行比较,引入传输延迟和冗余度两个性能指标评估所提出模型的有效性。理论分析和仿真结果证明传染路由中使用该常微分方程模型分析协议性能是可行的,与传统传染路由协议相比,基于网络编码的传染路由协议可以减少传输延迟,尤其在缓存和带宽受限的情况下,对于减少传输延迟有着明显的优势。更多还原

【Abstract】 This paper establishes an analytical model of epidemic routing based on ordinary differential equations,and proposes network coding based epidemic routing,in comparison with replication based epidemic routing.Two performance index of delivery delay and redundancy are introduced to evaluate the validity of the model.The results of the study and emulation show that,compared with traditional epidemic routing protocol,network coding based epidemic routing protocol can reduce delivery delay,especially under the cache and bandwidth constraints,it has bigger advantage in reducing delivery delay,and it is feasible to improve protocol performance by using network coding in the epidemic routing.The paper also proves that it’s feasible to use this ordinary differential equation model to analysis protocol performance.更多还原