Closing the gap in the multicast capacity of hybrid wireless networks
Closing the gap in the multicast capacity of hybrid wireless networks
复制标题
DOI：
10.1145/2248371.2248392
复制
发表时间：
2012-06
期刊：
影响因子：
--
通讯作者：
Shaojie Tang;Xufei Mao;Taeho Jung;Junze Han;Xiangyang Li;Boliu Xu;Chao Ma
中科院分区：
文献类型：
--
作者：
Shaojie Tang;Xufei Mao;Taeho Jung;Junze Han;Xiangyang Li;Boliu Xu;Chao Ma
研究了一个随机无线网络的组播容量，该网络由n个随机放置的普通无线节点和m个规则放置的基站组成，称为混合网络。所有普通的无线节点都具有均匀的传输范围r和均匀的干扰范围R=θ（r），并且它们可以以Wa-bps进行发送/接收。每个基站可以以数据速率WB-bps直接与相邻基站通信，并且假设基站与无线节点之间的数据传输速率为Wc-bps。假设存在将用作ns个多播流的源节点的ns个普通无线节点的随机集合（每个节点具有随机选择的k-1个接收器）。每个流将具有数据速率λi bps。我们发现混合网络的最小单流组播容量min ns在i = 1 λi上有三个区域，并且对于每一个区域，我们得到了匹配的渐近上界和下界.从而弥补了文献中已有结果的差距。
We study the multicast capacity of a random wireless network consisting of n randomly placed ordinary wireless nodes and m regularly placed base stations in a square region, known as a hybrid network. All ordinary wireless nodes have the uniform transmission range r and uniform interference range R=θ(r) and they can transmit/receive at Wa-bps. Each base station can communicate with adjacent base stations directly with a data rate WB-bps and the data transmission rate between a base station and a wireless node is assumed to be Wc-bps. Assume that there is a random set of ns ordinary wireless nodes that will serve as the source nodes of ns multicast flows (each has randomly selected k-1 receivers). Each flow will have data rate λi bps. We found that the minimum per-flow multicast capacity min n s over i = 1 λi for hybrid networks has three regimes, and for each regime we derive matching asymptotic upper and lower bounds. Thus it closes the gap of previous results in the literature.