Performance Evaluation of the 802.16 Medium Access Control Layer

Gusak, Oleg; Oliver, Neal; Sohraby, K.

doi:10.1007/978-3-540-30182-0_24

Cited by 17 publications

(13 citation statements)

References 5 publications

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“…When SS differentiation is provided, the 802.16 systems must also consider the SS factor, as well as the ST factor, in dynamically partitioning the sub-frames. We have examined earlier works ( [3], [4], [5], [6], [7], [8], [9], [10], [11], [12]) according to their support for these criteria. A summary of the findings is shown in Table I, where a tick indicates that the relevant criterion is explicitly incorporated in the schemes analysed in the referenced work.…”

Section: Motivationmentioning

confidence: 99%

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An Architecture for IEEE 802.16 MAC Scheduler Design

Tang

Green

Rumsewicz

et al. 2007

2007 15th IEEE International Conference on Networks

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Abstract-The scheduling algorithm for IEEE 802.16 broadband wireless access system has been left open in the standard. In this paper, we consider three criteria that we have identified as important criteria for an 802.16 scheduler: Service Type differentiation, dynamic sub-frame partition and Subscriber Station differentiation. We investigate the scheduler design from a general perspective, based on these three criteria.

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Section: Motivationmentioning

confidence: 99%

“…In [5], the authors propose a simple algorithm for partitioning the sub-frames based on aggregate traffic condition, without considering the different ST's. On the other hand, the authors in [6] propose a dynamic UL and DL partitioning scheme which gives higher priority to the DL subframe.…”

Section: Motivationmentioning

confidence: 99%

An Architecture for IEEE 802.16 MAC Scheduler Design

Tang

Green

Rumsewicz

et al. 2007

2007 15th IEEE International Conference on Networks

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“…However, since the use of CDMA codes is optional and is only available with mobile terminals, we do not consider it here. Finally, even though many studies (e.g., [2,3,5,6]) have been proposed in the literature for the evaluation of an IEEE 802.16 network with best-effort traffic, none of them acknowledge that temporary SS service deadlock situations can occur due to collided bandwidth requests.…”

Section: Introductionmentioning

confidence: 98%

A bandwidth request reiteration mechanism for IEEE 802.16 wireless networks

2009

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The IEEE 802.16 is a leading technology for Broadband Wireless Access (BWA), where a Base Station (BS) provides a set of Subscriber Stations (SSs) with first-mile network access. Each SS has multiple connections directed to the BS, which are assigned bandwidth on a demand basis. Specifically, the BS allocates part of the channel as request slots, which are accessed by best-effort connections in a random access manner to transmit bandwidth requests. Although bandwidth requests sent by different SSs may collide the standard does not specify an explicit acknowledgment mechanism. This, and the bandwidth being assigned by the BS to each SS as a whole, may lead to critical inconsistencies between the perception of the SSs’ requirements at the BS and the actual SSs’ requirements, which in turn may entail SS service disruption. While the standard suggests that an SS should regularly update the BS about the backlog of its connections, the algorithm to do so is left unspecified. In this paper we propose a simple, yet effective, mechanism to be employed by the SSs, called Bandwidth Request Reiteration (BR2), which prevents deadlock from occurring. Using detailed packet-level simulation, we compare BR2 to an alternative approach based on timeout, and show that BR2 achieves better performance, in terms of the average transfer delay, while it does not incur a significant additional overhead, in terms of MAC signalin

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“…RELATED WORK Nowadays, there are many performance analysis investigations of the IEEE 802.16 standard [9][10][11][12][13][14][15]. Several papers have studied the IEEE 802.16 performance metrics by simulation, theoretic analysis, or both.…”

Section: Introductionmentioning

confidence: 99%

Performance analysis of the enhanced mesh MAC protocol of mobile WiMAX standard

Markhasin

Drozdova

2010

2010 IEEE Region 8 International Conference on Computational Technologies in Electrical and Electronics Engineering (SIBIRCON)

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In this paper we investigate performance of enhanced medium access control (MAC) protocol of the IEEE 802.16e standard (mobile WiMAX). We consider the multipoint-to-multipoint (MPMP) mode MAC because it allows organization of fully mesh and more flexible networks then point-to-multipoint mode (PMP). Enhanced WiMAX features are useful for building a low-cost broadband telecom infrastructure in BRIC and other countries with multiple remote, rural and difficult for access (RRD) territories. We consider probability-time characteristics as average packet delay. These characteristics are derived by the numericanalytic method of the load intensity balance. The paper is aimed at demonstration of frame sizes, bandwidth requests sizes and round-trip delay influence on the standards' MAC protocol characteristics. The obtained results display effective ways for essential enhancement of the distributed long-delay WiMAX MAC.

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Performance Evaluation of the 802.16 Medium Access Control Layer

Cited by 17 publications

References 5 publications

An Architecture for IEEE 802.16 MAC Scheduler Design

An Architecture for IEEE 802.16 MAC Scheduler Design

A bandwidth request reiteration mechanism for IEEE 802.16 wireless networks

Performance analysis of the enhanced mesh MAC protocol of mobile WiMAX standard

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