摘要
根据P2P嵌入式可视电话应用环境,分析基于高离散地址P2P可视电话的会议模型,针对分布式会议模型要解决的应用层组播问题,给出综合了带宽约束、路径时延、处理代价的适应性评价函数,提出以FMPH算法、SPH算法为起点,带度约束的优秀基因多衍生策略的组播算法,仿真实验证明该算法结果性能稳定,收敛性较好,为基于P2P的分布式可视会议模型提供了一种优化组播路由方案,但会议节点的接入带宽及路径时延动态变化问题有待进一步研究改善。
According to the application environment of embedded video-phone,this paper analyzed conference-model based on P2P and high-discrete addresses condition.Aiming at the application level multicast problem about the distributed-conference model,an evaluation expression with constraints of bandwidth,delay and process cost is formed.Complying with the strategy that excellence gene is more derive,a kind of genetic algorithm of multicast with degree and delay constraints,which arises from FMPH and SPH algorithm result,is proposed.The simulations prove that the algorithm has nice stability and nice astringency.It provides an optimal multicast routing solution for the conference-model based on P2P.The problems about mutability of bandwidth and delay are still pending.
出处
《计算机工程与应用》
CSCD
北大核心
2008年第20期124-127,共4页
Computer Engineering and Applications
基金
2007广东省重点工业攻关计划项目(No.0711020400060)
关键词
会议模型
高离散地址多播
基因衍生算法
组播生成树
conference-model
high-discrete addresses multicast
gene-derive algorithm
multicast tree
