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An Overview and Comparison of Hierarchical P2P-SIP Networks

P2P-SIP networks are emerging distributed communication technology introducing Scalability and Robustness. These networks propose to use a peer-to-peer network for user registration and user location in Session Initiation Protocol (SIP)- based voiceover- IP (VoIP) networks. Nevertheless, P2P-SIP systems are based on a pure flat DHT design which provides a uniform distribution of (equal) peers and resources that assures scalability and load balancing. Recent research works have proposed to organize P2P overlays into hierarchical architecture called HP2P-SIP. These later are motivated by supporting sophisticated search requirements, separating categories of use (content, personal communications,), scaling, etc. However, these works did not resolve the problem of overloading the bandwidth, which is still a head-case. In this paper, after highlighting the many challenges of hierarchical architectures, we show how to avoid overloading the physical network by acting on the overlay network. To do this, we have a physical network of size N with a number of super nodes (NSN). Our solution shows how many levels k we must build our overlay network so that in the physical network, the number of messages generated by the lookup nodes does not exceed a value x, initially fixed. x

Auteur(s) : Abel Diatta , Ibrahima Niang , Mandicou Ba
Pages : pp. 47 - 58
Année de publication : 2015
Revue : International Journal of Computer Science and Information Security,
N° de volume : Vol. 13, No. 3
Type : Article
Mise en ligne par : NIANG Ibrahima