Fine-grained Frequencies for Simultaneous Intra-Group One-to-All Dissemination

Debadarshini, Jagnyashini; Shekhar, Chandra; Saha, Sudipta

doi:10.1109/mass50613.2020.00064

“…Several recent application of the ST based protocols focus on this specific issue [47,48,49,50,51,52]. Clever lightweight separation of zones is also an important issue in such massive and hostile settings [53,54,55,56]. However, application of these available tools in the context of multi-robot task allocation would require special attention as we explored and demonstrated in this work.…”

Section: Discussionmentioning

confidence: 96%

Consensus-based fast and energy-efficient multi-robot task allocation

Mahato

¹

,

Saha

²

,

Sarkar³

et al. 2023

Robotics and Autonomous Systems

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“…D for a network for a certain group division is calculated as the the sum of the said ratios over all the nodes in the network. Through a variety of manually defined groups the work [6] shows that success in simultaneous intragroup dissemination is proportional to D. However, obtaining a group division in a network satisfying a certain value of D is hard. Moreover, factors such as initiator-position, inter-group PRR, etc.…”

Section: Designmentioning

confidence: 99%

“…To demonstrate the proof of the concept our initial study[6], uses a purely manual strategy to form the groups with an aim to achieve a certain D. We do not use it in this study.…”

mentioning

confidence: 99%

Fine-Grained Frequencies Meet Synchronous Transmission

Debadarshini¹,

Saha²

2021

Preprint

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<div>Fine-grained frequencies have been used in several recent works to enhance network throughput as well as combat Cross Technology Interference (CTI) issues in licence free ISM bands. We observe that synchronous communication based strategies, due to the scope of inter-frequency capture-effect, are inherently more capable of supporting in-parallel communication over multiple channels even when the Center Frequency Distance (CFD) of the channels are very low (<5 MHz). In this work, we pursue an in-depth study of how fine-grained frequencies can be used in conjunction with synchronous communication to extract the maximum benefit from a very narrow band of available frequencies (e.g., 2- 5 MHz) for in-parallel intra-group communication. In this direction, we propose a simple and efficient group formation strategy to automatically define groups in a given WSN/IoT network to boost up in-parallel intra-group communication efficiency. Through extensive experimental evaluations in existing WSN/IoT testbeds, we show that in-parallel one-to-all dissemination in the groups formed through the proposed strategy can execute with upto 73% higher reliability while consuming upto 41% lower energy as compared to the same running among the groups formed through naive strategy with only 4 consecutive frequencies separated by 1 MHz and upto 20 groups.</div>

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“…The communication protocols used in these smart-systems often suffer from scalability issues [2], [3] which may create a huge bottleneck in any such large and dense decentralized system. Dividing the set of devices into groups and inparallel execution of different fragment of the target job by different groups have been a promising solution approach in the existing works [4]- [6]. Such simultaneous intra-group communication activities are best supported by Frequency Division Multiplexing (FDMA).…”

Section: Introductionmentioning

confidence: 99%

“…Especially, we focus on understanding how an addition of a slight frequency separation can benefit capture-effect or relax the associated constraints of capture-effect. The work [6] reports our initial study in this direction. In the current work, we begin with an in-depth study of the fundamental characteristics of the communication operations under low-CFD based separation in synchronous transmission.…”

Section: Introductionmentioning

confidence: 99%

Fine-Grained Frequencies Meet Synchronous Transmission

Debadarshini¹,

Saha²

2021

Preprint

Self Cite

0

View full text Add to dashboard Cite

<div>Fine-grained frequencies have been used in several recent works to enhance network throughput as well as combat Cross Technology Interference (CTI) issues in licence free ISM bands. We observe that synchronous communication based strategies, due to the scope of inter-frequency capture-effect, are inherently more capable of supporting in-parallel communication over multiple channels even when the Center Frequency Distance (CFD) of the channels are very low (<5 MHz). In this work, we pursue an in-depth study of how fine-grained frequencies can be used in conjunction with synchronous communication to extract the maximum benefit from a very narrow band of available frequencies (e.g., 2- 5 MHz) for in-parallel intra-group communication. In this direction, we propose a simple and efficient group formation strategy to automatically define groups in a given WSN/IoT network to boost up in-parallel intra-group communication efficiency. Through extensive experimental evaluations in existing WSN/IoT testbeds, we show that in-parallel one-to-all dissemination in the groups formed through the proposed strategy can execute with upto 73% higher reliability while consuming upto 41% lower energy as compared to the same running among the groups formed through naive strategy with only 4 consecutive frequencies separated by 1 MHz and upto 20 groups.</div>

show abstract

Fine-grained Frequencies for Simultaneous Intra-Group One-to-All Dissemination

Cited by 14 publications

References 18 publications

Consensus-based fast and energy-efficient multi-robot task allocation

Consensus-based fast and energy-efficient multi-robot task allocation

Fine-Grained Frequencies Meet Synchronous Transmission

Fine-Grained Frequencies Meet Synchronous Transmission

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