超宽带下无线Ad Hoc网络容量的理论研究  

Study about the Capacity of Wireless Ad Hoc Networks under Ultra Wide Band

作　　者：戴沁芸[1] 胡修林[1] 张蕴玉[1] 

机构地区：[1]华中科技大学电子与信息工程系,武汉430074

出　　处：《计算机科学》2006年第5期22-25,共4页Computer Science

摘　　要：本文在三维球体表面和二维平面上建立了超宽带(UWB)技术下的 Ad hoc 网络模型,运用图论中 Voronoi小区特性和渗透理论分析了相应的网络容量,得出结论:UWB 技术下无线 Ad hoc 网络容量的上限将随着网络节点数目的增加而增大。该结论一方面说明 UWB 技术是提高 Ad hoc 网络容量的有效手段,物理层设计不同对网络性能会有不同影响,另一方面也为 UWB 技术与 Ad hoc 网络的结合奠定了理论基础。In this paper, wireless ad hoe network models under ultra wide band （UWB）are established on the three dimension sphere surface and in the two dimension plane. We analyze the corresponding network capacity by the properties of voronoi cell. in graph theory and percolation theory. Our conclusion is that the upper bound of capacity of wireless ad boc networks under ultra wide band increases as the number of nodes in the network. On the one hand, it shows that UWB technology is an effective way to improve the network capacity, and on the other hand, it provides the theoretical foundation for the integration of UWB technology and wireless ad hoc networks.

关 键 词：无线AD hoc网络 网络容量 图形理论 超宽带 渗透理论 

分 类 号：TN929.5[电子电信—通信与信息系统]