%0 Journal Article
%T Achieve of Topology-Aware P2P Relay Search Mechanism in SIP Terminal<br>SIP终端中拓扑感知的P2P中继查找机制实现①
%A CHEN Pei-Pei
%A LEI Wei-Min
%A WANG Ning
%A ZHANG Xiu-Wu
%A <br>陈培培
%A 雷为民
%A 王宁
%A 张秀武
%J 计算机系统应用
%D 2010
%I 
%X Because of the best-effort service of the Internet, the VoIP system has QoS problem. In order to improve QoS, most systems use application-layer routing mechanism. One of the key issues of the mechanism is how to search for relay node. Combining the P2P technology, this paper proposes a topology-aware based P2P relay search mechanism. First, in order to simulate the real Internet topology, a Cluster Overlay network was built. In the Cluster Overlay network, a topology-aware relay search algorithm was designed. Finally, this program was achieved in the SIP terminal. A simulation on the Cluster Overlay network and relay search mechanism was carried out on the NS2 platform. The results show that the similarity between the Cluster Overlay network and the real Internet topology is very high. The relay search algorithm can find the optimal relay node, thus to improve the quality of the path.
%K application-layer routing
%K P2P relay
%K topology-aware
%K cluster overlay network
%K SIP terminal<br>应用层路由
%K P2P中继
%K 拓扑感知
%K Cluster
%K Overlay网络
%K SIP终端
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=D4F6864C950C88FFCE5B6C948A639E39&aid=62BEB8078815C935449C534E7534306D&yid=140ECF96957D60B2&vid=2A8D03AD8076A2E3&iid=5D311CA918CA9A03&sid=7555FB9CC973F695&eid=B62E0EEFE746E568&journal_id=1003-3254&journal_name=计算机系统应用&referenced_num=0&reference_num=10