DTN中的拥塞感知转发算法  

Congestion perception forwarding algorithm in DTN

作　　者：任珊珊[1,2] 徐夫田[3] 隋敬麒[1,2] 

机构地区：[1]山东师范大学信息科学与工程学院,山东济南250014 [2]山东省分布式计算机软件新技术重点实验室,山东济南250014 [3]山东省地税局信息中心,山东济南250002

出　　处：《计算机工程与设计》2012年第8期2961-2965,共5页Computer Engineering and Design

基　　金：山东省优秀中青年科学家科研奖励基金项目(2010BSE14022)

摘　　要：为了能够在延迟容忍网络中缓解拥塞部分的流量,使网络保持高缓存可用率和低延迟,提出了一种拥塞感知转发算法。在社会路由度量和自我网络度量的基础上,该算法采用了一种新的具有更高可靠性和灵活性的整合度量。运用实验将该算法与Epidemic,Prophet和Spay and Focus这3种经典路由算法就交付率、延迟和缓存可用率3方面进行了比较。实验结果表明,这种算法具有优异的性能。To alleviate the flow from congested parts in delay tolerant network and maintain high buffer availability and low delays for the network , a kind of congestion perception forwarding algorithm is put forward. Based on the social routing metric and ego network metric, a new integrated metric of higher reliability and flexibility is adopted by the algorithm. Experiments are conducted to compare the algorithm with epidemic, prophet, spay and focus protocols over success ratio, delay and availability of buffer. The results show that this algorithm had excellent properties.

关 键 词：拥塞感知转发算法 缓存可用率 整合度量 延迟 自我网络 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]