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INTRODUCTION With the emergence of wireless technology, various multimedia services, e.g., audio and/or video, are reaching us today through portable devices any- time, anywhere and even more increasingly accessi- ble in the near future. High quality video streaming over wireless IP is one of the most attractive applica- tions by ongoing deployment of wireless local area network (WLAN) hotspots and even powerful Wi- MAX mobile coverage. However, the present Internet is not providing a… 相似文献
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INTRODUCTION Switching networks have been widely used in telecommunication, data communication, satellitecommunication, optical fiber network, etc. It was firstproposed to meet the need to interconnect pairs oftelephone users. When a telephone user wants to callanother one, a request is generated. In order to satisfy all the requests, people first try to fully connect the callers (inputs) and receivers (outputs) who want to communicate. Later Clos (1953) showed that through some clever … 相似文献
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