1746-OB32E
1746-OB32E
ILA路由度量
首先对现有的干扰负载感知路由度量进行简要介绍,如式(1)所示:
其中,p为路径,n为链路数,m为链路l上的节点数。MTI(Metric of Traffic Interference)捕捉流间干扰如式(2)所示,CSC(Channel Switching Cost)捕捉流内干扰。参数是用来权衡流内干扰和流间干扰的权重。
其中,ALLij(Average Interference Load)是在信道C上节点i、j之间干扰邻居节点的平均负载。ETT用来确定传输速率和丢包率的差别。AIL描述干扰节点的邻居节点活跃性,定义为:
其中,ILij(C)是干扰邻居的负载,用平均队列长度来表示。
CSC通过给定使用同一信道的连续链路更高的权重来减少流内干扰,下文将详细讨论。
ILA路由度量捕捉了流间和流内干扰,但仍存在局限性。
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