EURASIP Journal on Wireless Communications and Networking
Performance comparison of scheduling algorithms in network mobility environment
Computer Communications
LGRR: A new packet scheduling algorithm for differentiated services packet-switched networks
Computer Communications
EURASIP Journal on Wireless Communications and Networking - Special issue on fairness in radio resource management for wireless networks
Review: A comprehensive survey on scheduler for VoIP over WLAN
Journal of Network and Computer Applications
Implementation and validation of LTE downlink schedulers for ns-3
Proceedings of the 6th International ICST Conference on Simulation Tools and Techniques
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The token bank fair queuing algorithm (TBFQ) is a novel scheduling algorithm that is suitable for wireless multimedia services. The bandwidth allocation mechanism integrates the leaky bucket structure with priority handling to address the problem of providing quality-of-service (QoS) guarantees to heterogeneous applications in the next generation packet-switched wireless networks. Scheduling algorithms are often tightly integrated with the wireless medium access control (MAC) protocol. However, when heterogeneous wireless systems need to be integrated and interoperate with each other, it is desirable from the QoS provisioning standpoint to decouple scheduling algorithm from the MAC protocol. In this paper we propose a framework of seamless QoS provisioning and the application of TBFQ for uplink and downlink scheduling in wireless networks. We study its performance under a generic medium access framework that enables the algorithm to be generalized to provide QoS guarantees under various medium access schemes. We give a brief analysis of the algorithm and compare its performance with common scheduling algorithms through simulation. Our results demonstrate that TBFQ significantly increases wireless channel utilization while maintaining the same QoS, unlike many fair queuing algorithms, TBFQ does not require time-stamping information of each packet arrival—an impractical feature in an already resource scarce environment. This makes TBFQ suitable for wireless multimedia communication. Copyright © 2004 John Wiley & Sons, Ltd.