Proceedings ArticleDOI
Ensuring the QoS requirements in 802.16 scheduling
Alexander Sayenko,O. Alanen,Juha Karhula,Timo Hämäläinen +3 more
- pp 108-117
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TLDR
This work proposes a simple, yet efficient, solution for the WiMAX base station that is capable of allocating slots based on the QoS requirements, bandwidth request sizes, and theWiMAX network parameters.Abstract:
IEEE 802.16 standard defines the wireless broadband access network technology called WiMAX. WiMAX introduces several interesting advantages, and one of them is the support for QoS at the MAC level. For these purposes, the base station must allocate slots based on some algorithm. We propose a simple, yet efficient, solution for the WiMAX base station that is capable of allocating slots based on the QoS requirements, bandwidth request sizes, and the WiMAX network parameters. To test the proposed solution, we have implemented the WiMAX MAC layer in the NS-2 simulator. Several simulation scenarios are presented that demonstrate how the scheduling solution allocates resources in various cases. Simulation results reveal the proposed scheduling solution is ensures the QoS requirements of all the WiMAX service classes and shares fairly free resources achieving the work-conserving behaviour.read more
Citations
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Journal ArticleDOI
Scheduling in IEEE 802.16e mobile WiMAX networks: key issues and a survey
TL;DR: The goals of scheduling are to achieve the optimal usage of resources, to assure the QoS guarantees, to maximize goodput and to minimize power consumption while ensuring feasible algorithm complexity and system scalability.
Journal ArticleDOI
NVS: a substrate for virtualizing wireless resources in cellular networks
TL;DR: In virtualizing a base station's uplink and downlink resources into slices, NVS meets three key requirements-isolation, customization, and efficient resource utilization-using two novel features: a provably optimal slice scheduler and a generic framework for efficiently enabling customized flow scheduling within the base station on a per-slice basis.
Journal ArticleDOI
Dynamic QoS-Based Bandwidth Allocation Framework for Broadband Wireless Networks
Amir Esmailpour,Nidal Nasser +1 more
TL;DR: Simulation results and comparisons with existing schemes show the effectiveness and strengths of the DQBA framework in delivering promising QoS and being fair to all classes of services in a WiMAX network.
Proceedings ArticleDOI
Comparison of Different Scheduling Algorithms for WiMAX Base Station: Deficit Round-Robin vs. Proportional Fair vs. Weighted Deficit Round-Robin
TL;DR: The authors' simulations show that when the radio channel conditions are taken into account (in PF and WDRR schedulers), the improvements in throughput can be considerable.
Proceedings ArticleDOI
Performance analysis of the ieee 802.16 arq mechanism
TL;DR: The simulation results reveal that the ARQ mechanism and its correct configuration play an important role in transmitting data over wireless channels in the IEEE 802.16 networks.
References
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Journal ArticleDOI
A generalized processor sharing approach to flow control in integrated services networks: the multiple node case
Abhay Parekh,Robert G. Gallager +1 more
TL;DR: Worst-case bounds on delay and backlog are derived for leaky bucket constrained sessions in arbitrary topology networks of generalized processor sharing (GPS) servers and the effectiveness of PGPS in guaranteeing worst-case session delay is demonstrated under certain assignments.
Proceedings ArticleDOI
Analysis and simulation of a fair queueing algorithm
TL;DR: It is found that fair queueing provides several important advantages over the usual first-come-first-serve queueing algorithm: fair allocation of bandwidth, lower delay for sources using less than their full share of bandwidth and protection from ill-behaved sources.
Journal ArticleDOI
Efficient fair queueing using deficit round-robin
M. Shreedhar,George Varghese +1 more
TL;DR: This paper describes a new approximation of fair queuing that achieves nearly perfect fairness in terms of throughput, requires only O(1) work to process a packet, and is simple enough to implement in hardware.
Proceedings ArticleDOI
A generalized processor sharing approach to flow control in integrated services networks-the multiple node case
Abhay Parekh,Robert G. Gallager +1 more
TL;DR: The authors propose the use of a packet service discipline at the nodes of the network that is based on a multiplex scheme called generalized processor sharing (GPS) that is combined with leaky bucket rate admission control to provide flexible, efficient and fair use of the links.
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