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This paper proposes two methods for dispatching sensors to gather data in the rechargeable wireless mobile sensor networks. Several anchoring locations are planned for sensors to collect data. A recharging dock is installed in the region of interest to restore the energy of sensors. After sensors are deployed randomly, they move to anchoring locations and collect data. In the first method, multiple...
Modern distance learning and education is new potential educational model. Along with the development of Internet and multimedia technology, the distance learning and education also develops accordingly in China. The development of modern distance learning and education accords with China situation presently. It is one new education model with huge potential of development, which can abate the conflict...
Users demand not only seamless continuation but also high throughput of Internet access as they hop across different administrative domains and heterogeneous networks during an ongoing session. By extending the multiple care-of addresses registration based on mobile IPv6, the proposed mechanism may provide seamless access with soft handoff notion as well as high throughput with automatically selecting...
Under the upcoming 4G network, mobile devices will have to handle multiple interfaces. Each network mechanism has its merits, such as WiFi's high speed and the long transmission range of High Speed Download Packet Access (HSDPA), but managing a combination of different interfaces during a hand-off procedure presents new challenges for next-generation networks because the network environment will continue...
We proposed a high density wireless integration network procedure - hand-around in this paper. We introduce Simultaneous Mobility Binding (SB-MIP) in IPv4 and Mobile Nodes and Multiple Interfaces in IPv6 (Monami6) for this network procedure. After comparing the advantage and disadvantage, we conclude that Monami6 is the proper layer 3 mechanism in hand-around processing environment. At last we simulate...
In the current Internet, congestion control is performed jointly by the end systems running the TCP protocol and by routers running active queue management (AQM) algorithms. Due to the TCP protocol's AIMD congestion control algorithm and its round trip time delay to react to packet losses, it is very hard to maintain high TCP throughput with a low packet loss rate in routers. In addition, unresponsive...
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