Abstract
AbstractThis paper presents the strategy for video service using caching technique in WLAN. The environment of WLAN includes mobile nodes(MN) and an access point(AP) that have memory for store video clips transmitted from AP and video server, respectively. The operation for the proposed system has two modes, the 1st mode is AP mode that all MNs are serviced through AP, and the 2nd mode is an ad-hoc mode that is serviced only through other MNs without AP connecting. The operation of ad-hoc mode is that the requesting MN is serviced directly from the video clip cached on other MN without the connection to AP or multimedia server(MS). Otherwise the proposed system uses AP mode that requesting MN is serviced under the control of AP, thus MN connects to AP’s cache or MS.KeywordsWebcachingMultimediaVODWireless and Ad-hoc network
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