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Urban facility interconnection networks require a robustness and reliability usually found in public networks or private cable and radio networks in licensed bands. Both factors mean an increase in costs, which also increase as the size of the network increases. The recent rise in use of wireless technologies in open wavebands has attracted the interest of the industry in the spread of these types...
Although networks based on IEEE 802.11 was originally intended to transport best-effort data traffic, the appearance of IEEE 802.11e has brought about the opportunity of supplying real time voice communications with strict requirements of quality of service. In WLAN IEEE 802.11 networks, the handover process follow a ldquobreak-before-makerdquo mechanism, provoking discontinuities in the communication,...
The convergence of different classes of traffic with different priorities over the wireless network has become a reality. To insure that the users of key applications such as VoIP are satisfied with the service they receive, one must insure that the QoS criteria for these applications, such as delay, jitter or packet loss, are met This in turn means that some form of connection admission control must...
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