Abstract
Scheduling algorithms play vital role in MAC layer for wireless broadband networks such as WiMAX. Though WiMAX standard defines scheduling service classes, it does not specify the actual packet scheduling mechanism to achieve QoS guarantee. This paper discusses scheduling objectives, scheduling algorithms and resource allocation strategies in WiMAX network considering PMP mode and time division duplex (TDD) operation. A novel scheduling scheme called Controlled Priority Queuing (CPQ) is proposed which takes into account available bandwidth and priority of service queues in making scheduling decisions. CPQ is implemented in VHDL along with well-known RR and DRR algorithms. The performance is compared in terms of throughput and queuing delay considering real hardware implementation scenario. It was observed that CPQ throughput is found better in case of rtPS and nrtPS service class.
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References
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Patel, Z.M., Dalal, U.D. (2013). Implementation and Analysis of Downlink Scheduling for IEEE 802.16 Using Controlled Priority Queuing. In: Kumar M., A., R., S., Kumar, T. (eds) Proceedings of International Conference on Advances in Computing. Advances in Intelligent Systems and Computing, vol 174. Springer, New Delhi. https://doi.org/10.1007/978-81-322-0740-5_48
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DOI: https://doi.org/10.1007/978-81-322-0740-5_48
Publisher Name: Springer, New Delhi
Print ISBN: 978-81-322-0739-9
Online ISBN: 978-81-322-0740-5
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