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  Avoiding the bottlenecks caused by centralized control functions Control and Quality-of-Service Provisioning in High-Speed Microcellular Networks

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by Anthony S. Acampora, Mahmoud Naghshineh
ftp://ftp.ccs.neu.edu/pub/people/matta/seminar96/acampora.ps
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Abstract:

Design and implementation of broadband networks is one of the major focal areas in modern telecommunications. With recent developments in the field of wireless, hand-held terminals, as well as in personal communications services (PCS) [1-6], integration of mobile, wireless connections in a backbone broadband network is an essential and challenging task since mobile users may need to access the communication services offered by the fixed broadband network. This implies that wireless networks must provide packet-based transport and bandwidth-upon-demand, as well as support multimedia applications. Since the radio spectrum is limited, future wireless systems will have micro/picocellular architectures in order to provide the higher capacity needed to support broadband services [7-9]. Due to the small coverage area of micro/picocells and characteristics of the multipath and shadow fading radio environment, hand-off events in future microcellular systems will occur at a much higher rate as compared to today's macrocellular systems, and control of such systems will introduce a new set of challenges. We can view wireless/mobile connections as consisting of paths (or routes) through the broadband backbone network; and radio links between the mobile, wireless terminals and base stations (or access points) which are the interface of mobile users to the fixed backbone network. When the quality of a

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