Dual Threshold Scheduling for VoIP Traffic on Downlink of WiMAX Networks

Provided by: Academy Publisher
Topic: Mobility
Format: PDF
Previous downlink scheduling algorithms of WiMAX (Worldwide interoperability for Microwave Access), like DRR (Deficit Round-Robin) and WRR (Weighted Round-Robin), usually reserve minimum rate to each type of traffic and cannot consider the status of queue length of each connection, thus making it unsuitable for VoIP on-off traffic model. One well-designed scheduling algorithm is expected to coordinate QoS-related functional entities in WiMAX architecture. The authors address an efficient downlink scheduling algorithm, which allocate the bandwidth based on dual threshold of queue length.

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