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WiMAX QoS - Dynamic Service Flow Management

Rodrigues, N. ; Rocha, R.

WiMAX QoS - Dynamic Service Flow Management, Proc Conf. on Telecommunications - ConfTele, Santa Maria da Feira, Portugal, Vol. -, pp. - - -, May, 2009.

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Providing Quality of Service (QoS) to clients from the access to the core network is possible with an 802.16 based access network. For this purpose, it is proposed the use of the Session Initiation Protocol (SIP) for signalling of client's QoS requirements. These requirements are processed by a modified SIP Proxy and sent to a Broker in the access network. This broker dynamically provisions connection requests from clients and, if necessary, communicates with the core Broker, so that a mapping between QoS paradigms of both networks is accomplished. This mapping allows that QoS characteristics are maintained from the access to the core network.
Performance tests show that dynamically provisioning connections in the access network can be accomplished in a time-frame smaller than 100 ms. This time-frame is a reasonable price to pay for dynamic configuration of QoS-enabled connections for the access network.