WuLi, WeiDu, HongweiJia, XiaohuaLi, YingshuHuang, Scott C.-H.Du, Ding-Zhu2020-09-022020-09-022004-12-13https://hdl.handle.net/11299/215641In ad hoc wireless networks, the connected dominating set can be used as a virtual backbone to improve the performance. Many constructions for approximating the minimum connected dominating set are based on construction of maximal independent set. The relation between the size mis(G) of a maximum independent set and the size cds(G) of minimum connected dominating set in the same graph G plays an important role in establishing the performance ratio of those approximation algorithms. Previously, it is known that mis(G)<=4*cds(G)+1 for all unit disk graph G. In this paper, we improve it by showing mis(G)<=3.8*cds(G)+1.2.en-USReport