The Internet of Things on Its Edge: Trends Toward Its Tipping Point

Alioto, Massimo; Shahghasemi, Mohsen

doi:10.1109/mce.2017.2755218

Cited by 72 publications

(43 citation statements)

References 16 publications

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“…Stable and reliable energy sources are key-enablers for these devices, due to their need for a continuous operation for as long as possible: maintenance and battery or device replacement are not cost-effective approaches. Recent advances in energy-harvesting solutions provide fundamental methods to extend batteries life-time, improved portability, and self-sustainability [70,71]. Additionally, system designers also need to rely on current and next-generation power management techniques (e.g., low-leakage process technologies, low-power non-volatile memory and flash technologies, low-power clocking and operation schemes, energy-efficient wireless protocols) to ultimately reduce the overall energy budget.…”

Section: Iot-tandc #4: Growing Energy Awarenessmentioning

confidence: 99%

“…The use of energy resources in an efficient and sustainable manner is critical, since its power consumption will dictate the lifetime for a given battery capacity [10,72], which implies a set of smart power management mechanisms to be adopted. Typically, to mitigate their average power consumption and, hence, extend their lifetime, motes typically have a duty-cycled operation, regularly alternating periods of active and low-power operation [71]. When in active operation, the device traditionally requires wireless transmissions, which is frequently the most power-hungry state of a node.…”

Section: Iot-tandc #4: Growing Energy Awarenessmentioning

confidence: 99%

“…In recent decades, the semiconductor industry has been continuously shrinking its devices, while making them more powerful and energy-efficient. Fueled by Moore's law, the cost per transistor decreased significantly for each time the cumulative number of manufactured transistors has duplicated (around 45%) [71,73]. The ever-increasing demands for faster and smaller products, pushed this technology to its limits as it becomes extremely difficult to increase the density of transistors on a chip as well as its operating frequency, which seems to be almost saturated [37,74].…”

Section: The Role Of Reconfigurable Platformsmentioning

confidence: 99%

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The Future of Low-End Motes in the Internet of Things: A Prospective Paper

et al. 2020

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Undeniably, the Internet of Things (IoT) ecosystem continues to evolve at a breakneck pace, exceeding all growth expectations and ubiquity barriers. From sensor to cloud, this giant network keeps breaking technological bounds in several domains, and wireless sensor nodes (motes) are expected to be predominant as the number of IoT devices grows towards the trillions. However, their future in the IoT ecosystem still seems foggy, where several challenges, such as (i) device’s connectivity, (ii) intelligence at the edge, (iii) security and privacy concerns, and (iv) growing energy needs, keep pulling in opposite directions. This prospective paper offers a succinct and forward-looking review of recent trends, challenges, and state-of-the-art solutions of low-end IoT motes, where reconfigurable computing technology plays a key role in tomorrow’s IoT devices.

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Section: Iot-tandc #4: Growing Energy Awarenessmentioning

confidence: 99%

Section: Iot-tandc #4: Growing Energy Awarenessmentioning

confidence: 99%

Section: The Role Of Reconfigurable Platformsmentioning

confidence: 99%

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The Future of Low-End Motes in the Internet of Things: A Prospective Paper

et al. 2020

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“…Thus, it is now a rapidly developing field of research boosted by the recent advances in two transversal fields: materials for flexible electronics and the compatible fabrication technologies [1]. This interest comes up in response to the challenges imposed by the new electronic applications of the Internet of things (IoT) era, where a trend toward ubiquitous sensing is becoming increasingly clear [2]. In this context, the number of sensing variables, whether environmental or biological, as well as the different ways they can be addressed, resulted in a wide range of studies, among which relative humidity (RH) sensors attracted notable attention given their importance for diverse processes and industries, such as food, biomedicine, and the living environment [3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Fabrication and Characterization of Humidity Sensors Based on Graphene Oxide–PEDOT:PSS Composites on a Flexible Substrate

et al. 2020

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In this paper, we present a simple, fast, and cost-effective method for the large-scale fabrication of high-sensitivity humidity sensors on flexible substrates. These sensors consist of a micro screen-printed capacitive structure upon which a sensitive layer is deposited. We studied two different structures and three different sensing materials by modifying the concentration of poly(3,4-ethylenedioxythiophene)/polystyrene sulfonate (PEDOT:PSS) in a graphene oxide (GO) solution. The results show that the aggregation of the PEDOT:PSS to the GO can modify its electrical properties, boosting the performance of the capacitive sensors in terms of both resistive losses and sensitivity to relative humidity (RH) changes. Thus, in an area less than 30 mm2, the GO/PEDOT:PSS-based sensors can achieve a sensitivity much higher (1.22 nF/%RH at 1 kHz) than other similar sensors presented in the literature which, together with their good thermal stability, time response, and performance over bending, demonstrates that the manufacturing approach described in this work paves the way for the mass production of flexible humidity sensors in an inexpensive way.

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“…Due to the development of IoT devices, it is possible to collect various types of data. Moreover, in areas where humans cannot access, small IoT devices are deployed using unmanned devices such as multirotor and drones to collect data [ 1 , 2 ]. However, since it is practically impossible to evenly place sensors in areas where data collection is required, it is challenging to collect appropriate data that can accurately reflect the characteristics of the area of interest.…”

Section: Introductionmentioning

confidence: 99%

Ping-Pong Free Advanced and Energy Efficient Sensor Relocation for IoT-Sensory Network

Kim

Park

Lee

2020

Sensors

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With the growing interest in big data technology, mobile IoT devices play an essential role in data collection. Generally, IoT sensor nodes are randomly distributed to areas where data cannot be easily collected. Subsequently, when data collection is impossible (i.e., sensing holes occurrence situation) due to improper placement of sensors or energy exhaustion of sensors, the sensors should be relocated. The cluster header in the sensing hole sends requests to neighboring cluster headers for the sensors to be relocated. However, it can be possible that sensors in the specific cluster zones near the sensing hole are continuously requested to move. With this knowledge, there can be a ping-pong problem, where the cluster headers in the neighboring sensing holes repeatedly request the movement of the sensors in the counterpart sensing hole. In this paper, we first proposed the near-uniform selection and movement scheme of the sensors to be relocated. By this scheme, the energy consumption of the sensors can be equalized, and the sensing capability can be extended. Thus the network lifetime can be extended. Next, the proposed relocation protocol resolves a ping-pong problem using queues with request scheduling. Another crucial contribution of this paper is that performance was analyzed using the fully-customed OMNeT++ simulator to reflect actual environmental conditions, not under over-simplified artificial network conditions. The proposed relocation protocol demonstrates a uniform and energy-efficient movement with ping-pong free capability.

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The Internet of Things on Its Edge: Trends Toward Its Tipping Point

Cited by 72 publications

References 16 publications

The Future of Low-End Motes in the Internet of Things: A Prospective Paper

The Future of Low-End Motes in the Internet of Things: A Prospective Paper

Fabrication and Characterization of Humidity Sensors Based on Graphene Oxide–PEDOT:PSS Composites on a Flexible Substrate

Ping-Pong Free Advanced and Energy Efficient Sensor Relocation for IoT-Sensory Network

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