Opportunistic fair scheduling for the downlink of <i>IEEE</i> 802.16 wireless metropolitan area networks

Mehrjoo, Mehri; Dianati, Mehrdad; Shen, Xuemin; Naik, Kshirasagar

doi:10.1145/1185373.1185441

Cited by 36 publications

(14 citation statements)

References 22 publications

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“…In [9], Sayenko et al proposed a comprehensive study on the issue of scheduling in WiMAX network which covers five classes of service in WiMAX. In [10], Mehrjoo et al developed a scheduling design which, based on existing channel conditions and the background of each subscriber station. In [11], Yusheng ji et al developed a scheduling design in focused form in Base Station which is composed of two levels of call admission control and scheduling unit.…”

Section: Related Workmentioning

confidence: 99%

New Downlink Scheduling Framework for Hybrid Unicast and Multicast Traffic in WiMAX Networks

Karimi¹,

Yousefi²,

Azarpeyvand³

et al. 2012

IJWMT

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WiMAX networks based on IEEE 802.16 standard has expedited broadband wireless access surge in recent years. The traffic in these networks is identified in four types of class of service with different QoS requirements. Therefore, scheduling mechanism to manage these services in order to meet QoS requirements is a crucial fact and an important challenge. In this paper, for PMP mode of WiMAX networks, a two-level scheduling mechanism in MAC layer of Base Station (BS) has been proposed. The proposed scheduling algorithm takes into account hybrid unicast and multicast downlink traffic including three classes of service: rtps, nrtps and BE. In the first level of this scheduling mechanism, we have used the scheduling algorithms WRR and FCFS to schedule the connections and in its second level, the PQ algorithm based on Aging method is used to manage and schedule the packets. The functionality of the proposed scheduling algorithm is compared with priority queuing (PQ) algorithm. The resulting outcome of simulation shows that the proposed design has quite a better performance for Best Effort (BE) service class. Furthermore the delay of the rtps class and total throughput of the network is increased noticeably.

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Section: Related Workmentioning

confidence: 99%

New Downlink Scheduling Framework for Hybrid Unicast and Multicast Traffic in WiMAX Networks

Karimi¹,

Yousefi²,

Azarpeyvand³

et al. 2012

IJWMT

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“…In [10], the selective relative best (SRB) scheduling was proposed for BE traffic, in which a proper tradeoff between the fairness and system throughput was fulfilled by jointly considering short-term channel gain and long-term channel gain. An opportunistic fair scheduling was proposed in [11] to maintain the long-term fairness and achieve a smooth service rate. In general, all the aforementioned schemes focused on improving fairness performance, rather than providing the guarantee for the minimum throughput requirement, which is essential for nrtPS.…”

Section: A Scheduling In Wireless Networkmentioning

confidence: 99%

A flexible resource allocation and scheduling framework for non-real-time polling service in IEEE 802.16 networks

Hou

She

et al. 2009

IEEE Trans. Wireless Commun.

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Abstract-This paper proposes an efficient yet simple design framework for achieving flexible resource allocation and packet scheduling for non-real-time polling service (nrtPS) traffic in IEEE 802.16 networks. By jointly considering the selective Automatic Repeat reQuest mechanism at the media access control layer as well as the adaptive modulation and coding technique at the physical layer, the proposed framework enables a graceful tradeoff between resource utilization and packet delivery delay while maintaining the minimum throughput requirements of nrtPS applications. An analytical model is developed for parameter manipulation in the proposed framework, where some important performance metrics, such as inter-service time, delivery delay, goodput, and resource utilization, are investigated for performance evaluation. Simulation results are given to demonstrate the efficiency of the proposed framework and verify the accuracy of the analytical model. Index Terms-Non-real-time polling service (nrtPS), scheduling, automatic repeat request, IEEE 802.16, adaptive modulation and coding.

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“…However, OS may result in poor fairness due to the starvation of end users experiencing poor channel conditions for a long time. An opportunistic fair scheduling scheme was proposed in [8] to maintain the long-term fairness and achieve a smooth service rate.…”

Section: Related Workmentioning

confidence: 99%

An efficient delay constrained scheduling scheme for IEEE 802.16 networks

Hou

Shen

2007

Wireless Netw

Self Cite

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In this paper, we propose a simple yet efficient delay-constrained scheduling scheme for IEEE 802.16 networks. The proposed scheduling scheme not only can satisfy delay constraints of different service types by manipulating a simple operation parameter but also can achieve a good fairness performance. An analytical model is developed to evaluate the performance in terms of interservice time, average queue length, and mean waiting time, and is verified through extensive simulations. Furthermore, an implementation procedure of the proposed scheme is given, which reflects the scheme's good features of the fast re-configurability and adaptability.

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Opportunistic fair scheduling for the downlink of IEEE 802.16 wireless metropolitan area networks

Cited by 36 publications

References 22 publications

New Downlink Scheduling Framework for Hybrid Unicast and Multicast Traffic in WiMAX Networks

New Downlink Scheduling Framework for Hybrid Unicast and Multicast Traffic in WiMAX Networks

A flexible resource allocation and scheduling framework for non-real-time polling service in IEEE 802.16 networks

An efficient delay constrained scheduling scheme for IEEE 802.16 networks

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