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Relay stations (RSs) can enhance signal quality for mobile stations (MSs) close to the cell boundary. To abundantly exploit the advantages of RSs, it is a critical task to investigate the impact of RSs location on link reliability and system capacity in two-hop cellular networks. In this paper, the closed-form of the number of disconnect MSs and the expression of system capacity for varying RSs location...
The P2P technology makes it possible that the number of the clients can be infinite, while the P2P technology still has some problems. Under the free riding model, someone always shut down the P2P services to others immediately after downloaded he wanted, which will influence the continue service and cause instability and fluctuation. In this paper, a robust architecture, cactus-architecture, is proposed,...
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