| Publisher | University of Patras | ||
|---|---|---|---|
| Format | 256.4KB PDF | Date added | 15 Jun 2006 |
| Topics | Quality of Service, WiMAX (802.16), Mobile - Wireless Communications | ||
| Downloads | 18 | ||
The advent of Broadband wireless promises quality communications over the wireless channel. The 802.16 standard is expected to arise as the main Broadband Wireless Access (BWA) Technology, providing high-speed data access to subscribers. In this paper, an important part of such a network, the MAC scheduler, is investigated. Although IEEE 802.16 defines specific Quality of Service (QoS) traffic flows, scheduling of heterogeneous applications is left open for research. A heuristic approach is followed to propose a QoS strategy. In the proposed strategy, Call Admission Control (CAC) is implemented for high-priority traffic so as to overcome the problem of starvation of network resources. Moreover different contention minislots allocation strategies, for low-priority traffic, are investigated.
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