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Access networks based on cooper cables are costly to build and maintain. For this reason, last-mile access networks based on wireless technologies are gaining considerable attention. Among the wireless technologies being employed, the IEEE802.11 is common place. In such scenarios it is important to have well defined mechanisms to better evaluate traffic characteristics and overall system performance...
A variety of wireless network technologies have been developed and deployed, including GSM, UMTS, WiFi and WiMAX. The advantages of having an integrated heterogeneous wireless network environment include seamless communications, joint resource management and adaptive quality of service. In such environment, operators would not need to reject the service requests, but redirect them to appropriate networks...
Wireless mesh networks are emerging as a promising access network architecture. In this work, we report on an extensive measurement campaign performed over an experimental WiFi-based mesh network, deployed in an office building environment. The measurements are focused on the performance of HTTP traffic. Results demonstrate the existence of an unfairness issue, whereby longer sessions achieve better...
Explosive development of multimedia services in actual data networks and the increasing demand for service quality stimulate the interest in the QoS management research. In order to ensure the service quality for multimedia flows crossing heterogeneous domains several resource management entities should cooperate to fulfill this task. In this paper we will present a QoS management system for WiMAX...
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