Improving many-to-one traffic flowing in multi-hop 802.15.4 WSNs using a MAC-level fair scheduling

Casone, Luca

doi:10.1109/mobhoc.2007.4428747

Cited by 3 publications

(5 citation statements)

References 9 publications

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“…Moreover, most of them aim at reducing packets flooding generated during the paths discovery, and do not deal with traffic congestion. Perhaps [5] is the closest work to that presented here. [5], in fact, aims at enhancing fairness and reducing congestion in Zigbee, but, in contrast with this work, this is achieved by scheduling transmission attempts of nodes.…”

Section: Introductionmentioning

confidence: 76%

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Reducing traffic congestion in ZigBee networks: Experimental results

Secci

Buratti

2013

2013 9th International Wireless Communications and Mobile Computing Conference (IWCMC)

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In this paper we propose and test, through experimentation on the field, a novel routing protocol for Zigbee networks. The proposed solution aims at reducing traffic congestion, causing delays, packets losses and unfair use of the energy resources of nodes in the network. The protocol exploits, at the network layer, the information related to medium access control losses, therefore collisions, to select the best path to reach the destination, accounting for both, connectivity and congestion on links. The protocol has been implemented on the MC1322x platform produced by Freescale and a comparison between the proposed protocol and Zigbee has been performed. Results demonstrate the significant improvement achieved in terms of packet loss rate and of nodes usage balance, the latter resulting in longer network lifetime.

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Section: Introductionmentioning

confidence: 76%

“…In data networking and queueing theory, congestion occurs whenever a link carries too much data, such that its quality of service deteriorates [5]. Typical effects include queueing delays, packets losses and unfair use of the energy resources of nodes in the network (the most used routers will consume more energy).…”

Section: Introductionmentioning

confidence: 99%

Reducing traffic congestion in ZigBee networks: Experimental results

Secci

Buratti

2013

2013 9th International Wireless Communications and Mobile Computing Conference (IWCMC)

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“…where ( , ) is 0 if the node at location ( , ) is not a pivot, and 1 if it is. By merging cases 1 and 2, when ≥ , < and > , we have: (6) where , indicates that is in location ( , ).…”

Section: B Mathematical Modelmentioning

confidence: 99%

“…We propose an improvement of this protocol in order to reduce traffic congestion. In data networking and queueing theory, congestion occurs whenever a link carries more data than it can handle, causing a deterioration of its quality [6]. Typical effects of congestion include an increase of queueing delays and packet losses, and an unfair use of the energy resources of nodes in the network (as the most used routers consume more energy), which shortens network lifetime.…”

Section: Introductionmentioning

confidence: 99%

Improving the AODV-based ZigBee routing protocol through pivots

Rachkidy

Guitton

Buratti

2013

2013 IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)

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Wireless sensor networks are often deployed for monitoring purposes: when nodes detect the occurrence of a significant event, they transmit an information to a control entity in a multi-hop fashion. When data rate increases, congestion becomes a fundamental issue, especially when an emergency situation generates alarm messages originating from a specific area of the network. Indeed, congestion increases delays and packet losses, and yields to an unfair use of the energy of nodes. In this paper, we propose to improve the ZigBee routing protocol, aiming at reducing traffic congestion. The proposed solution uses intermediate nodes, denoted as pivots, which are selected by the data sources in order to reduce congestion on paths. Simulation results highlight the significant improvement achieved in terms of packet losses and average delays, with respect to the ZigBee routing protocol, while the overhead generated in the network is maintained under control. A mathematical model to derive the average path length and the number of pivots is also provided.

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“…As consequence, we have obtained a balanced load sharing between the available robots, as the figure 7 shows. In general, a WSN is characterized by a random sensors deployment and a many-to-one traffic model [18]. For this reason, with F-DPMS, we risk to have some robots underexploited and consequently a requested minimal number of maintainer robots greater than necessary.…”

Section: Robot Load Sharingmentioning

confidence: 99%

A distributed preventive maintenance strategy for wireless sensor networks

Azzaz¹,

Saı̈dane²

2012

Proceedings of the 9th ACM Symposium on Performance Evaluation of Wireless Ad Hoc, Sensor, and Ubiquitous Networks

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In this paper, we have proposed two distributed preventive maintenance strategies dedicated for large-scale wireless sensor networks (WSNs) using a reduced number of mobile robots : (i) Fixed Distributed Preventive Maintenance Strategy denoted by F-DPMS, (ii) Adaptive Distributed Preventive Maintenance Strategy denoted by A-DPMS.F-DPMS and A-DPMS are based on a simple analytical model to estimate the expected failures. To share the sensors repair load among the available robots, F-DPMS subdivides the WSN sensing area in equal surface subareas. Each maintainer robot is assigned to a single one area to deal with its anticipated failures. In contrary, A-DPMS uses an adaptive area partitioning technique depending on the distribution of failures over the network map, in order to balance the repair load sharing. Simulation has shown that both F-DPMS and A-DPMS provide a null network dysfunction time with a sufficient number of robots. Obtained results show also that A-DPMS requests a minimal number of robots lower than F-DPMS. But, it produces a heavier signaling cost. To remedy this problem, we have proposed a new version of A-DPMS denoted by A-DPMS*. The novel maintenance strategy reduces not only the introduced signaling messages, but also the traveled distance achieved by the maintainer robots to replace the expected failures.

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Improving many-to-one traffic flowing in multi-hop 802.15.4 WSNs using a MAC-level fair scheduling

Cited by 3 publications

References 9 publications

Reducing traffic congestion in ZigBee networks: Experimental results

Reducing traffic congestion in ZigBee networks: Experimental results

Improving the AODV-based ZigBee routing protocol through pivots

A distributed preventive maintenance strategy for wireless sensor networks

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