Applying a Self-Configuring Admission Control Algorithm in a New QoS Architecture for IEEE 802.16 Networks

Ghazal, Sahar; Aoul, Yassine Hadjadj; Othman, Jalel Ben; Naït‐Abdesselam, Farid

doi:10.1109/iscc.2008.4625606

Cited by 6 publications

(3 citation statements)

References 11 publications

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“…4 As it can be observed, the Diophantine solution, although exact, ex- ceeds by far the computational load of the alternative solutions considered and thus, it would not be feasible in practice 5 . For the largest granularity considered (granularity 10), the Heuristic approach clearly outperforms in computational time the EDiophantine solution with no loss of accuracy.…”

Section: Algorithms Performance Comparisonmentioning

confidence: 99%

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E-Diophantine: An Admission Control Algorithm for WiMAX Networks

Pérez-Costa

Mezzavilla²,

Marca

et al. 2010

2010 IEEE Wireless Communication and Networking Conference

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Abstract-Admission control algorithms must ensure that, when a new QoS resource reservation is accepted, reservations already present in the system continue having their QoS guarantees honored. In this paper we consider different approaches to compute the aggregated allocated capacity in WiMAX networks and, based on their limitations, propose the EDiophantine solution. The mathematical foundations for the designed approach are provided along with the performance improvements to be expected, both in accuracy and computational terms, as compared to three alternatives of increasing complexity. Finally, the different solutions considered are evaluated with OPNET's WiMAX simulator in a realistic scenario.

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Section: Algorithms Performance Comparisonmentioning

confidence: 99%

“…In [5] a fuzzy-logic based controller is employed to predict the blocking probability of a particular flow. The authors claim that the varying nature of real time applications can be taken into consideration by a 'rule-based' controller.…”

Section: Introductionmentioning

confidence: 99%

E-Diophantine: An Admission Control Algorithm for WiMAX Networks

Pérez-Costa

Mezzavilla²,

Marca

et al. 2010

2010 IEEE Wireless Communication and Networking Conference

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“…In previous work, we propose to add a traffic policer in the SS side [13] where the function of the traffic policer is globally defined. It is resumed in detecting and correcting traffic violations of a connection, before scheduling it in the SS uplink packet scheduler.…”

Section: Traffic Policing Modulementioning

confidence: 99%

Traffic Policing Based on Token Bucket Mechanism for WiMAX Networks

Ghazal¹,

Ben‐Othman²

2010

2010 IEEE International Conference on Communications

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In large scale networks like the IEEE 802.16 (WiMAX), monitoring the amount of traffic within the network is an important task. By controlling the amount of network traffic, congestion can be largely decreased. Therefore, the fulfilment of Quality of Service (QoS) requirement for each traffic class is guaranteed. In this study we propose a traffic policer based on token bucket concept for WiMAX. Token bucket parameters (token rate and bucket size) are adjusted according to the traffic characteristics of each traffic class individually. Simulation results show that our traffic policing technique greatly enhances network performance. It decreases the average delay for real time traffic like rtPS, and by consequence reduces data drop probability due to missed deadlines. It also decreases data loss probability for non real time service class like nrtPS.

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