%0 Journal Article
%T Half Overlay Multicast Routing for Hybrid Networks<br>面向混合网络的半覆盖组播路由协议
%A LIN Tong
%A QIAN Hua-Lin
%A GE Jing-Guo
%A NIU Guang-Feng
%A <br>林彤
%A 钱华林
%A 葛敬国
%A 牛广锋
%J 软件学报
%D 2007
%I 
%X Although multicast can be implemented in every layer of network,the existing multicast protocols rarely meet the demands both for flexibility and efficiency at one time. In general,hardware multicast and IP multicast are more efficient than overlay multicast,but the situation of flexibility is quite the contrary. This problem is much pressing in hybrid networks,in which the two demands have the same priority. This paper proposes a novel protocol named half overlay multicast routing that integrates IP layer in-group regional broadcast,address-and-port-translation based overlay multicast and extensible support for hardware multicast into one single model,where the three mechanisms are chosen dynamically for data delivery. By this approach,HOMR obtains the flexibility of overlay multicast. The simulation results show that the overhead of HOMR is low and the performance of HOMR is comparable with pure IP multicasting.
%K multicast
%K routing protocol
%K hybrid network
%K half overlay
%K self-organizing<br>组播
%K 路由协议
%K 混合网络
%K 半覆盖
%K 自组织
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=7735F413D429542E610B3D6AC0D5EC59&aid=5F5978D0FFC74F30B9E0C45423CE2471&yid=A732AF04DDA03BB3&vid=13553B2D12F347E8&iid=F3090AE9B60B7ED1&sid=2961AC949C1CE2AD&eid=ADBCBDA20126732E&journal_id=1000-9825&journal_name=软件学报&referenced_num=0&reference_num=22