DAV Nguyên tắc và các ứng dụng P10
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Handoff in mobile and wireless networks Wireless data services use small-coverage high-bandwidth data networks such as IEEE 802.11 whenever they are available and switch to an overlay service such as the General Packet Radio Service (GPRS) network with low bandwidth when the coverage of a Wireless Local Area Network (WLAN) is not available. From the service point of view, Asynchronous Transfer Mode (ATM) combines both the data and multimedia information into the wired networks while scaling well from backbones to the customer premises networks....
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