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In order to evaluate the influence of neighbors' quality to P2P streaming system's performance during scheduling, this paper establishes a markov chain based differential function model to analyze the relationship between peer's average startup delay and probability neighbors have wanted data as well as neighbors' available upload bandwidth. This paper also proposes a scheduling feedback algorithm,...
Ubiquitous Wireless Network will be the important infrastructure for ubiquitous information service in the future. Ubiquitous Wireless Network is objectively heterogeneous network, so vertical handoff is one of crucial topics. A vertical soft handoff scheme is proposed based on SIP using Wireless Access Gateway (RGW). RGW triggers and controls the handoff session to ensure same two-way delay of handoff...
Chord is known to be limited in routing efficiency since all nodes are on the overlay without considering the underlying network topology. In this paper, a Chord routing algorithm based on limited network layer multicast, called MChord, is proposed, which uses multicast technology to obtain physical neighbor information for routing. Simulation shows that it can shorten network search delay greatly,...
In P2P streaming system, real-time performance is very important for evaluating quality of service, which directly determines the user experience. However, real-time performance is restricted by server bandwidth cost. Based on the proposed data transmitting model, this paper investigates the recursiveness of real-time performance through theoretical analysis, and computes its relationship with server...
This paper analyzes the characteristics of time-shifting service for mobile multimedia broadcast and proposes a strategy of resource scheduling for time-shifting proxy server based on predictable user behaviors. Further more, by modeling user behaviors and defining user-habit property, this paper also proposes two different prediction algorithms, the algorithm based on maximum transition probability...
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