MODESA: An optimized multichannel slot assignment for raw data convergecast in wireless sensor networks

Soua, Ridha; Minet, Pascale; Livolant, Erwan

doi:10.1109/pccc.2012.6407742

Cited by 58 publications

(46 citation statements)

References 6 publications

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“…Several scheduling algorithms have been proposed for TSCH networks. They can be broadly classified as either centralized [12][13][14] or distributed [15][16][17][18] algorithms.…”

Section: Orchestra Schedulementioning

confidence: 99%

“…Therefore, several scheduling algorithms have been proposed for TSCH networks. They can be broadly classified as either centralized [12][13][14] or distributed [15][16][17][18] algorithms. Both centralized and distributed scheduling techniques involve additional communication overhead: each node is supposed to communicate with its neighbors or with a central entity to exchange network and traffic information in addition to scheduling information.…”

Section: Introductionmentioning

confidence: 99%

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Autonomous and traffic-aware scheduling for TSCH networks

et al. 2018

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Abstract-Wireless Sensor Networks (WSNs) have been recognized as a promising communication technology for smart grid monitoring and control applications. However, the deployment of WSNs in smart grid brought new challenges that pertain to the harsh electrical grid nature, and the different and often contradicting communication requirements of smart grid monitoring applications. MAC protocols play a crucial role to meet the reliability and latency requirements of WSN-based smart grid communications. In particular, the IEEE 802.15.4 TSCH (Time Slotted Channel Hopping), the latest generation of low-power and highly reliable MAC protocols, orchestrates the medium access according to a time-frequency communication schedule. However, TSCH specification does not provide any practical solution for the establishment of the schedule. Orchestra is a recent scheduling solution for TSCH that brings significant advantages such as, the use of simple scheduling rules, the low signaling overhead, and the high delivery ratio. Despite its unique features, Orchestra has the limitation of computing the TSCH schedule at each node independently from its traffic load, which can drastically affect the communication delay. This limitation makes Orchestra not sufficiently convenient for several delaysensitive smart grid applications. Further, the current TSCH specification does not support traffic differentiation (i.e. handle all packets equally regardless of their criticality levels). In this paper, we propose an enhanced Orchestra-based TSCH protocol, called e-TSCH-Orch, that dynamically adjusts time slots assignment according to traffic load and criticality level. The performance analysis of e-TSCH-Orch shows that it significantly reduces the communication delay compared to the original Orchestra-based TSCH, while preserving the low signaling overhead and the high packet delivery ratio.

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“…Several scheduling algorithms have been proposed for TSCH networks. They can be broadly classified as either centralized [12][13][14] or distributed [15][16][17][18] algorithms.…”

Section: Orchestra Schedulementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Autonomous and traffic-aware scheduling for TSCH networks

et al. 2018

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“…In [33] authors propose MODESA which is a centralized schedule-based algorithm that aims at optimizing slot assignment for raw data convergecast in a multi-channel network in order to reduce the TDMA gathering cycle. MODESA uses a dynamic channel assignment approach.…”

Section: Multichannel Optimized Delay Time Slot Assignment (Modesa)mentioning

confidence: 99%

Overview on Multi-Channel Communications in Wireless Sensor Networks

Diab¹,

Chalhoub²,

Misson³

2013

NPA

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In this paper, we focus on multi-channel MAC protocols specifically designed for Wireless Sensor Networks (WSNs). The use of multiple channels helps overcome interferences and thus enhance the overall network performance. In order to establish channel and slot allocation to enable simultaneous transmissions, many protocols have been proposed in the literature. Some of them are based on a TDMA approach which offers a more deterministic behavior but requires a strict synchronization, while others are based on CSMA/CA which is an asynchronous medium access algorithm that suffers from collisions due to its probabilistic behavior. Different classifications have been proposed in previous survey papers depending on the periodicity of channel switching, on whether they are centralized or distributed, synchronized or asynchronous, etc. In this paper, we present a survey of the different techniques used in WSNs and that are applicable on the IEEE 802.15.4 standard. We detail some of the most popular protocols and discuss their advantages and weaknesses. We conclude the paper with an open discussion concerning future research directions.

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“…MUSIKA is based on our previous work [7]. However, this latter did not take into account the existence of multiple sinks and traffic differenciation.…”

Section: Musika: Multi-sink Slot Assignmentmentioning

confidence: 99%