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The IEEE 802.16 working group developed the WMAN to achieve Broadband Wireless Access (BWA). IEEE 802.16 is a high-speed wireless network technology that can provide multimedia services and Quality of Service (QoS) support for multi-level service types. The IEEE 802.16 standard provides QoS support for four service types: UGS, rtPS, nrtPS, and BE. In order to achieve end-to-end multimedia services, the 802.16 MAC QoS should be integrated with an IP QoS such as RSVP. In this paper, the authors propose a cross-layer QoS mechanism that combines both the IP layer and the 802.16 MAC layer to provide cooperative QoS operation.
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