An Ω(D log(N/D)) lower bound for broadcast in radio networks

被引:178
作者
Kushilevitz, E
Mansour, Y
机构
[1] Harvard Univ, Aiken Computat Lab, Cambridge, MA 02138 USA
[2] Tel Aviv Univ, Dept Comp Sci, IL-69978 Tel Aviv, Israel
[3] IBM Corp, TJ Watson Res Ctr, Armonk, NY 10504 USA
关键词
radio networks; broadcast; lower bounds;
D O I
10.1137/S0097539794279109
中图分类号
TP301 [理论、方法];
学科分类号
081202 ;
摘要
We show that for any randomized broadcast protocol for radio networks, there exists a network in which the expected time to broadcast a message is Omega(Dlog(N/D)), where D is the diameter of the network and N is the number of nodes. This implies a tight lower bound of Omega(Dlog N) for any D less than or equal to N1-epsilon, where epsilon > 0 is any constant.
引用
收藏
页码:702 / 712
页数:11
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