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Recently considerable efforts have focused on the design of self-adaptive flow control schemes for wireless multicast service. This attention is significantly necessary due to the large scale heterogeneous wireless multicast receivers, especially those with large propagation delays, which means the feedbacks arriving at the source node are somewhat outdated and harmful to the control actions.To solve...
Due to advantages in enough number of channels and favorable bandwidth, 2.4 GHz ISM band is used as the most prevalent band for the IEEE802.15.4 LR-WPAN. However, there are an increasing number of other devices and systems which may interfere with the IEEE 802.15.4 communication. Therefore, the coexistence issue is one of the most critical challenges for the IEEE 802.15.4. In this paper, we propose...
This paper designs LS-ware (Large-Scale USN middleware) in order to collect and save large-scale sensing data and to analyze collected data and run status sensing function. LS-ware not only provides USN middlewarepsilas basic function such as Meta information, quality process, or status management, but also makes large-scale sensing data light-weighted and provides a suitable event processing feature...
This paper proposes a new re-ranking scheme and presents experimental performance results for Web image retrieval with integrated query. In our previous work, cross-modal association rule was designed for associating one keyword with several visual feature clusters in Web image retrieval. Based on the cross-modal association rule, we implement an automatic re-ranking process online to integrate the...
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