Priority-based service differentiation scheme for IEEE 802.15.4 sensor networks

Kim, Eui-Jik; Kim, Meejoung; Youm, Sungkwan; Choi, Seokhoon; Kang, Chul Hee

doi:10.1016/j.aeue.2006.02.004

Cited by 55 publications

(21 citation statements)

References 2 publications

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“…Although some effort has been invested in IEEE 802.15.4 networks to provide Service Differentiation when using the CSMA/CA based period of the Superframe (CAP) [5][6] [7], to the best of our knowledge, work related to service differentiation in the GTS field is non existent. Previous research relating to GTS provision has been focused on improving GTS usage and on how to avoid under-utilisation of the slots but does not address service differentiation.…”

Section: A Related Gts Allocation Approachesmentioning

confidence: 99%

D-SeDGAM: A Dynamic Service Differentiation Based GTS Allocation Mechanism for IEEE 802.15.4 WSN

Villaverde

Rea

Pesch

2010

2010 Seventh International Conference on Information Technology: New Generations

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The plethora of applications for Wireless Sensor Networks (WSN) has experienced significant growth in recent years. Every application has a different set of requirements and it is highly desirable for all of them to share the available resources in an optimized way. The IEEE 802.15.4 standard for WSN includes guaranteed time slots (GTS) to schedule QoS demanding applications. However, the standard does not provide any type of QoS GTS scheduling mechanism and the authors are unaware of any other work that provides for service differentiation based GTS scheduling. We propose DSeDGAM, a novel dynamic service based differentiation GTS allocation mechanism to provide QoS and service based differentiation for WSN applications. Our solution takes into account static and transient aspects of QoS provisioning in WSN to construct a dynamic scheduling method. This work demonstrates that D-SeDGAM provides significantly better performance in terms of QoS than the standard allocation method by simultaneously satisfying QoS and service differentiation demands.

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Section: A Related Gts Allocation Approachesmentioning

confidence: 99%

D-SeDGAM: A Dynamic Service Differentiation Based GTS Allocation Mechanism for IEEE 802.15.4 WSN

Villaverde

Rea

Pesch

2010

2010 Seventh International Conference on Information Technology: New Generations

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“…They have suggested two different ways for the service differentiation scheme viz. by contention window (CW) size and by backoff exponent (BE) [9]. In the scheme, the nodes will have different CW value and BE values according to their priority class.…”

Section: Related Workmentioning

confidence: 99%

“…So, firstly priority can be assigned to different services. Kim et al has proposed priority based service differentiation scheme for IEEE 802.15.4 sensor networks [9]. They have suggested two different ways for the service differentiation scheme viz.…”

Section: Related Workmentioning

confidence: 99%

A Modified IEEE 802.15.4 Superframe Structure for Guaranteed Emergency Handling in Wireless Body Area Network

Ranjit

Shin

2013

NPA

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Wireless Body Area Network (WBAN) is a special purpose personal area network with health-care and other value-added applications. Recently, patient monitoring applications using WBAN have received significant attention. Patient monitoring applications are intended to report any sign of emergency in the monitored patient to the corresponding health personal so that necessary actions can be taken before it is too late. Therefore, the underlying protocol suite in WBAN should ensure that the emergency events will be timely reported. However, WBAN based on IEEE 802.15.4 might not be able to do so. Hence, in this paper, we devise the emergency handling capability in IEEE 802.15.4 MAC. We propose a modified superframe structure for supporting immediate emergency reporting and reliable data transmission. A fraction of inactive period is used opportunistically for three new periods in such a way that temporary switching between the new periods and inactive period occurs only for handling emergency events. We also suggest two different random channel access mechanisms for reporting emergencies. Through the numerical results, we show that the proposed scheme achieves improved latency and throughput in the WBAN environment with compare to IEEE 802.15.4.

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“…Eui-Jik et al [11] have proposed a mechanism for IEEE 802.15.4 to provide traffic differentiation scheme based on the contention window (CW) size and Backoff Exponent (BE). In this scheme, higher-priority-class nodes have the lower CW and BE values than others.…”

Section: State Of Art Of Existing Ieee 802154 Mac Protocolmentioning

confidence: 99%