Wi-Fi HaLow for the Internet of Things: An up-to-date survey on IEEE 802.11ah research

Tian, Le; Santi, Sintha Soraya; Seferagic, Amina; Lan, Julong; Famaey, Jeroen

doi:10.1016/j.jnca.2021.103036

Cited by 48 publications

(37 citation statements)

References 66 publications

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“…Among these, the IEEE 802.11ah standard, also known as Wi-Fi HaLow, is considered to be an enabler of the low-power connectivity required in wearable applications [ 141 ]. Its extended range can provide wearable devices with seamless connections in challenging environments like industrial setups and, being backward compatible, is expected to allow seamless integration with higher energy efficiency [ 142 ]. Further, and on top of the cellular IoT standards for wearable mMTC, certain industrial wearable applications can have requirements [ 143 ] that are similar to the other two 5G service classes, namely enhanced mobile broadband (eMBB) and ultra-reliable and low latency communications (URLLC) [ 144 ].…”

Section: State-of-the-art Techniques In the Field Of Industrial Wearablesmentioning

confidence: 99%

Wearables for Industrial Work Safety: A Survey

Svertoka

Saafi

Rusu-Casandra

et al. 2021

Sensors

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Today, ensuring work safety is considered to be one of the top priorities for various industries. Workplace injuries, illnesses, and deaths often entail substantial production and financial losses, governmental checks, series of dismissals, and loss of reputation. Wearable devices are one of the technologies that flourished with the fourth industrial revolution or Industry 4.0, allowing employers to monitor and maintain safety at workplaces. The purpose of this article is to systematize knowledge in the field of industrial wearables’ safety to assess the relevance of their use in enterprises as the technology maintaining occupational safety, to correlate the benefits and costs of their implementation, and, by identifying research gaps, to outline promising directions for future work in this area. We categorize industrial wearable functions into four classes (monitoring, supporting, training, and tracking) and provide a classification of the metrics collected by wearables to better understand the potential role of wearable technology in preserving workplace safety. Furthermore, we discuss key communication technologies and localization techniques utilized in wearable-based work safety solutions. Finally, we analyze the main challenges that need to be addressed to further enable and support the use of wearable devices for industrial work safety.

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Section: State-of-the-art Techniques In the Field Of Industrial Wearablesmentioning

confidence: 99%

Wearables for Industrial Work Safety: A Survey

Svertoka

Saafi

Rusu-Casandra

et al. 2021

Sensors

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“…WiFi is typically utilized to offer networking capabilities and Internet access to various devices in private, public, and commercial contexts [89]. The coverage range of Wi-Fi was originally at 100 meters, but in IEEE 802.11ah, it has recently risen to around 1000 meters, which is essentially optimized for quality of service (QoS) within IoT environments [90], [91].…”

Section: Wi-fi Based Localization Techniquesmentioning

confidence: 99%

A Comprehensive Review of Indoor/Outdoor Localization Solutions in IoT era: Research Challenges and Future Perspectives

Asaad¹,

Maghdid²

2021

Preprint

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<p>The number of connected mobile devices and Internet of Things (IoT) is growing around us, rapidly. Since, most of the people daily activities are relying on these connected things or devices. Specifically, this past year (with COVID-19) changed daily life in abroad and this is increased the use of IoT enabled technologies in health sector, work, and play. Further, the most common service via using these technologies is the localization/positioning service for different applications including: geo-tagging, billing, contact tracing, health-care system, point-of-interest recommendations, social networking, security, and more. Despite the availability of a large number of localization solutions in the literature, the precision of localization cannot meet the needs of consumers. For that reason, this paper provides an in-depth investigation of the existing technologies and techniques in the localization field, within the IoT era. Furthermore, the benefits and drawbacks of each technique with enabled technologies are illustrated and a comparison between the utilized technologies in the localization is made. The paper as a guideline is also going through all of the metrics that may be used to assess the localization solutions. Finally, the state-of-the-art solutions are examined, with challenges and perspectives regarding indoors/outdoors environments are demonstrated.</p>

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“…The energy-efficient MAC protocols for wireless sensor networks or IEEE 802.11 wireless LANs have been proposed in the literature [1][2][3][4]. In [1], the multi-hop communication technique was developed for the nodes deployed in ad hoc manner to be scheduled to go to sleep mode according to applications, and pass application messages through wireless sensor networks.…”

Section: Introductionmentioning

confidence: 99%

“…In [1], the multi-hop communication technique was developed for the nodes deployed in ad hoc manner to be scheduled to go to sleep mode according to applications, and pass application messages through wireless sensor networks. The optimization of the original power saving mechanism in [5], and the IEEE 802.11 ah MAC protocol for WiFi sensors were presented in [2] and [3,4], respectively. However, we still need to resolve the problems of large latency due to multiple transmissions from source to destination in [1], and low transmission rate from WiFi sensors with very limited battery power to APs in [2][3][4].…”

Section: Introductionmentioning

confidence: 99%

“…The optimization of the original power saving mechanism in [5], and the IEEE 802.11 ah MAC protocol for WiFi sensors were presented in [2] and [3,4], respectively. However, we still need to resolve the problems of large latency due to multiple transmissions from source to destination in [1], and low transmission rate from WiFi sensors with very limited battery power to APs in [2][3][4].…”

Section: Introductionmentioning

confidence: 99%

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Energy-efficient MAC protocol for wireless LANs with WiFi sensors

Choi

2021

Journal of Electrical Engineering

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More and more mobile computing devices such as smartphones with limited battery power are being used in IEEE 802.11 wireless LANs, and WiFi sensors with very limited battery power are expected to get Internet access through wireless LANs in the near future. We propose an efficient MAC (Medium Access Control) protocol so that WiFi sensors and mobile devices are connected to APs (Access Points) in IEEE 802.11 wireless LANs in an energy-efficient manner.

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Wi-Fi HaLow for the Internet of Things: An up-to-date survey on IEEE 802.11ah research

Cited by 48 publications

References 66 publications

Wearables for Industrial Work Safety: A Survey

Wearables for Industrial Work Safety: A Survey

A Comprehensive Review of Indoor/Outdoor Localization Solutions in IoT era: Research Challenges and Future Perspectives

Energy-efficient MAC protocol for wireless LANs with WiFi sensors

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