IEEE 802.15.4 and ZigBee as Enabling Technologies for Low-Power Wireless Systems with Quality-of-Service Constraints

Tennina, Stefano; Kouba, Anis; Daidone, Roberta; Alves, Mrio; Jurck, Petr; Severino, Ricardo; Tiloca, Marco; Hauer, Jan-Hinrich; Pereira, Nuno; Dini, Gianluca; Bouroche, Mélanie; Tovar, Eduardo

doi:10.1007/978-3-642-37368-8

Cited by 26 publications

(22 citation statements)

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“…As part of our future work, we plan to improve the scalability of the Ack-enabled Slotted WiDOM, by leveraging on the clustering technique to support multi-hop network topologies, where the activities of star-based clusters can be scheduled according to the approach proposed in [31], [32]. We also aim to extend the experimental evaluation in a large scale industrial plant to obtain the worst case response time of message streams under even more realistic noise patterns.…”

Section: Discussionmentioning

confidence: 99%

Response time analysis of slotted WiDOM in noisy wireless channels

Vahabi

Tennina

Tovar

et al. 2015

2015 IEEE 20th Conference on Emerging Technologies &Amp; Factory Automation (ETFA)

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Timely delivery of critical traffic is a major challenge in industrial applications. The Wireless Dominance (WiDOM) medium access control protocol offers a very large number of priority levels to suit time sensitive application requirements. In particular, assuming that its overhead is properly modeled, WiDOM enables an accurate evaluation of the network response time in the wireless domain, through the power of the schedulability analysis, based on non-preemptive and staticpriority scheduling. Recent research proposed a new version of WiDOM (dubbed Slotted WiDOM), which offers a lower overhead as compared to the original version. In this paper, we propose a new schedulability analysis for Slotted WiDOM and extend it to handle message streams with release jitter. In order to provide a more accurate timing analysis, the effectof transmission faults must be taken into account. Therefore, in our novel analysis we consider the case where messages are transmitted in a realistic wireless channel, affected by noise andinterference. Evaluation is performed on a real test-bed and the results from experiments provide a firm validation of our findings. Abstract-Timely delivery of critical traffic is a major challenge in industrial applications. The Wireless Dominance (WiDOM) medium access control protocol offers a very large number of priority levels to suit time sensitive application requirements. In particular, assuming that its overhead is properly modeled, WiDOM enables an accurate evaluation of the network response time in the wireless domain, through the power of the schedulability analysis, based on non-preemptive and staticpriority scheduling. Recent research proposed a new version of WiDOM (dubbed Slotted WiDOM), which offers a lower overhead as compared to the original version. In this paper, we propose a new schedulability analysis for Slotted WiDOM and extend it to handle message streams with release jitter. In order to provide a more accurate timing analysis, the effect of transmission faults must be taken into account. Therefore, in our novel analysis we consider the case where messages are transmitted in a realistic wireless channel, affected by noise and interference. Evaluation is performed on a real test-bed and the results from experiments provide a firm validation of our findings.

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Section: Discussionmentioning

confidence: 99%

Response time analysis of slotted WiDOM in noisy wireless channels

Vahabi

Tennina

Tovar

et al. 2015

2015 IEEE 20th Conference on Emerging Technologies &Amp; Factory Automation (ETFA)

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“…In Tennina et al [7] a cluster scheduling solution is proposed which allows network scalability whilst maintaining the ability to meet the QoS requirements. The work attempts to address synchronization for time sensitive WSNs.…”

Section: Related Workmentioning

confidence: 99%

Traffic differentiation and dynamic duty cycle adaptation in IEEE 802.15.4 beacon enabled WSN for real-time applications

2015

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The wireless sensor networks (WSNs) based on the IEEE 802.15.4 beacon enabled mode provide a deterministic resource allocation offered by the guaranteed time slot (GTS) mechanism which is ideal for real-time traffic applications that requires high quality of service (QoS). In the beacon enabled mode the active and optional inactive period is governed by superframe order (SO) and beacon order (BO). Adapting the duty cycle using the SO and BO is desirable to accommodate the changing context of the WSNs traffic for network optimisation. However, existing approaches assumed a fixed SO and BO and segregate the evaluation of the contention access period and the contention free period that forms the active segment. To improve the performance of the IEEE 802.15.4 protocol in respect of the trade-off between power consumption and end-to-end delay, within a required QoS, a combination of dynamic priorities for traffic differentiation and dynamic duty cycle adaptation in the GTS allocation process are introduced. This work demonstrates that the proposed solution provides significantly better performance than the standard allocation method by simultaneously satisfying QoS and service differ-B Robert Stewart entiation demands with considerable power savings which is essential for WSNs. The specific novel use of this solution is in an application scenario where the deployed network is situated in an assisted living environment with a rich suite of heterogeneous wireless based communications in place.

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“…2, the superframe is defined between two beacon frames and has an active period and an inactive period [11]. The active portion of the superframe structure is composed of three parts, the Beacon, the Contention Access Period (CAP) and the Contention Free Period (CFP):…”

Section: IImentioning

confidence: 99%