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Volunteered Geographic Information (VGI) and Crowdsourcing are kinds of acquisition modes of geographic information, as well as information production and dissemination way with the development of information technology applications. In this paper, on the basis of analyzing application of VGI and crowdsourcing modes on disaster information management system, the disaster information management system...
In this paper we present a data collection scheme using mobile sink in wireless sensor and actor networks (WSAN). In order to improve the performance of WSAN, mobile sink is introduced. The mobile sink is able to move through the monitoring area, collect the sensed data from the sensor nodes in the radio transmission range. Once the data from all sensors are collected, the mobile sink returns to the...
Under the development of mobile Internet and SNS, crowdsourcing has become a new method of information exchange and promoted information production and exchanging on Internet. During the processes of disaster relief, mass of information created and released by normal people have been used and played an important role. Using crowdsourcing in disaster information collection can improve the efficiency...
Perviously, we studied RTT measurement method in mobile multi-homed end-to-end transport. End-to-end delay is a primary concern for real-time applications and asymmetric-path selection has some special characteristic to symmetric-path. Based on this, we propose an algorithm called Minimum RTT Asymmetric-Path First (MRAPF) for end-to-end transport path selection that takes into account the dynamic...
Notice of Violation of IEEE Publication Principles"Asymmetric Path Optimization In Mobile Multi-homed SCTP Multimedia Transport"by Jiemin Liu, Hongxing Zou, Jingxin Dou, and Yuan Gaoin the Proceedings of the International Conference on Intelligent Information Hiding and Multimedia Signal Processing (IIH-MSP/2008) pp 496-499After careful and considered review of the content and authorship...
As improvement of wireless and mobile technologies such as FMIPv6 and mSCTP, mobile devices such as laptops and PDAs are widely used. We investigate existing Mobile IPv6 scheme such as FMIPv6 in network layer and mSCTP in transport layer and find that both of them have some defects for signaling cost in mobile IPv6 environment. So, we we make a potential change to mSCTP - combine add-IP message with...
We investigate existing mobile IPv6 scheme in network layer (e.g., FMIPv6) and in transport layer (e.g., mSCTP) again. We find that FMIPv6 easily causes packet forwarding process of access routers (ARs), buffering overhead, a few handover signaling costs and latencies. We also find that mSCTP can make the mobile client (MC) change its IP address dynamically without connectionless, but itpsilas handover...
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