Research On P2P Service Network Based On QoS And Its Key Technologies

This paper introduces the QoS into the P2P network for it lack of the support of QoS, and builds a P2P Service Network architecture based on QoS. It could optimize the P2P network services that introduces the QoS into the real dynamic P2P network, and could shield the invalid operation of unbounded service search, and then got a optimized P2P network entirely. This paper proposes and builds a P2P Network service architecture-A P2P service network based on QoS, and then launched a series key technology research, that including:(1) The solution of P2P Service Network topology architecture is divided into two layers structure of autonomy peer layer and super peer core layer. The crucial problem in autonomy layer is the Node Grouping; and it is divided into two sub-problem to resolve the construction of super peer core layer, the first is the Super Peer Election, and the second is the selecting P2P service network dummy links(PSNLS).(2) Proposes a P2P service routine model based on QoS and gives its solving arithmetic, researches unicast and multicast routing problem from the intra-cluster and inter-cluster. (3)Proposes a effective P2P service discovery method based on QoS to direct at the P2P service composition, based on QoS and the P2P network service, gives the service search arithmetic. (4)Proposes a effective P2P service composition method based on QoS to direct at the P2P service composition, then builds the service composition model and gives the service composition arithmetic.