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SIP signaling protocol relies on centralized SIP servers deployed on the infrastructure of the network to route SIP messages in order to enable user endpoints to discover each other. However, the lack of the infrastructure in ad hoc networks requires that the network nodes support the tasks of participants discovery and SIP messages routing. In this paper, we propose AdSIP protocol which is a completely...
Overlay topologies are often used in unstructured peer-to-peer networks in order to improve the global performance. Various research works dealing with communication issues of dynamic networks gave much interest to overlay topologies to get a better network organization. In fact, the use of such structures aim to decrease the impact of network dynamics while improving its scalability. Moreover, overlays...
If we draw the virtual topology representing the communication in networks, we observe that the structure is similar to those of the social networks. Social networks are these networks with the characteristic relating densely some entities than others. These dense zones are called communities. Generally, the members of a same community share the same interest. In this work, we look for which virtual...
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