Optimal supernode selection for large - scale P2P networks

Abstract

With the rapid development of P2P, a number of new applications such as P2PSIP has emerged as a new trend in the field of multimedia communications over the Internet. P2PSIP capable of overcoming the disadvantages of conventional SIP system. In those scenarios, there need some nodes acting as proxies and gateways are called Supernodes (SNs) and when the network is large, the cost of selecting SN increases very rapidly with message complexity of traditional selection algorithms was.

This paper proposes a new SNS selection algorithm, which takes into account the optimization factors of delay, the stability of the network, and the cost of maintaining the network stability. Through analysis and simulation results, the SNS super-node selection algorithm deployed in the  Chord_SL network improved performance compared to previous studies.