WiFi HaLow for Long-Range and Low-Power Internet of Things: System on Chip Development and Performance Evaluation

Lee, Il-Gu; Kim, Duk Bai; Choi, Jeongki; Park, Hyungu; Lee, Sok-Kyu; Cho, Juphil; Yu, Heejung

doi:10.1109/mcom.001.2000815

Cited by 23 publications

(7 citation statements)

References 14 publications

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“…Gomez et al (2020) (Gomez et al, 2020) introduced the Static Context Header Compression and Fragmentation (SCHC) to solve insufficient self-adaption based on 6LoWPAN. Kaur et al (2021), Lee et al (2021) used transfer learning algorithm to deal with challenges related to data storage and processing and computational complexity in power IoT system, and finally found that the technology could bring innovation and higher productivity to intelligent changes in power systems.…”

Section: Intelligent Application Of Iot System In Intelligent Power S...mentioning

confidence: 99%

Practical Application of Internet of Things in the Creation of Intelligent Services and Environments

2022

Front. Internet Things

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The information era is coming. As a popular technology in the information age, Internet of Things (IoT) can collect various types of information in real time, realize the ubiquitous connection between things and people, and process the intelligent perception, identification, and management of things, processes, and information, and environment protection through various network access methods. Applying IoT to various fields is like wrapping the Earth with a layer of "digital skin" (Gubbi et al., 2013;Bauwens et al., 2020;Li and Da Xu, 2020). Moreover, under the trend of global warming, the emergence of the theme of Energy Saving and Emission Reduction (ESER) undoubtedly poses new challenges to the development of IoT.When IoT is widely used in various life scenarios, its main purpose is to provide intelligent services and environments. IoT applications can connect any sensing device to the Internet for data transmission, so as to realize intelligent identification, tracking, positioning, and monitoring of sensing devices. In addition, IoT contains many types of Wireless Sensor Networks (WSN), which, as a part of IoT sensing layer, can meet the actual needs of people to obtain reliable data in special environments (Sadowski and Spachos, 2020). WSN is a multi-hop network which is self-organized by many sensor nodes. It has the characteristics of flexibility, fault tolerance, high awareness, low cost, strong survivability, and fast layout. Therefore, IoT has a wide range of applications, such as environmental monitoring, agriculture, military, and medical care, and can collect, process, and disseminate collected data deployed in various environments (Aman et al., 2020;Fortino et al., 2020). However, for some special scenes, many sensor nodes are often placed in areas that cannot be accessed by human beings. While enjoying the convenience brought by WSN, people are also faced with the problems that illegal personnel obtain illegitimate interests by intercepting the monitoring data transmitted in the public channel. Therefore, the attention to security issues in IoT cannot be ignored.With the increasing commercial scope of 5th Generation Mobile Communication Technology (5G) communication technology in cities, the application of IoT in power, construction, industry, intelligent transportation, agriculture, logistics, intelligence, high efficiency, and ESER is being promoted (Verma et al., 2020). Of course, applying IoT is also inseparable from the combination of 5G communication, Cloud Computing (CC), Edge Computing (EC), blockchain, AI, and other technologies. IoT can collect many data from the environment, effectively monitor, analyze, and manage energy consumption, and reasonably improve IoT by identifying and analyzing opportunities of energy efficiency improvement (Khan et al., 2020;Liao et al., 2020;Saračević et al., 2020).In summary, in today's high-speed 5G communication technology, IoT is widely applied, and guaranteeing its performance is of high significance. Therefore, taking the practical application of IoT...

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Section: Intelligent Application Of Iot System In Intelligent Power S...mentioning

confidence: 99%

Practical Application of Internet of Things in the Creation of Intelligent Services and Environments

2022

Front. Internet Things

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“…IEEE 802.11ah [ 20 ] targets IoT and machine-to-machine (M2M) communications [ 21 , 22 , 23 ] owing to its promising features such as long range and low power. The IEEE 802.11ah is now intended for the smart grid (e.g., smart meters, smart houses, smart utility), smart agriculture, smart industry, extended range, and smart healthcare [ 24 , 25 , 26 , 27 , 28 ]. For instance, the smart grid is intended to facilitate intelligent power transmission and consumption in urban areas via two-way communication between smart meters and the grid system [ 29 ].…”

Section: Introductionmentioning

confidence: 99%

Resource Management for Massive Internet of Things in IEEE 802.11ah WLAN: Potentials, Current Solutions, and Open Challenges

Farhad

Pyun

2022

Sensors

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IEEE 802.11ah, known as Wi-Fi HaLow, is envisioned for long-range and low-power communication. It is sub-1 GHz technology designed for massive Internet of Things (IoT) and machine-to-machine devices. It aims to overcome the IoT challenges, such as providing connectivity to massive power-constrained devices distributed over a large geographical area. To accomplish this objective, IEEE 802.11ah introduces several unique physical and medium access control layer (MAC) features. In recent years, the MAC features of IEEE 802.11ah, including restricted access window, authentication (e.g., centralized and distributed) and association, relay and sectorization, target wake-up time, and traffic indication map, have been intensively investigated from various aspects to improve resource allocation and enhance the network performance in terms of device association time, throughput, delay, and energy consumption. This survey paper presents an in-depth assessment and analysis of these MAC features along with current solutions, their potentials, and key challenges, exposing how to use these novel features to meet the rigorous IoT standards.

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“…The arrangement targets ‘top of the line’ gadgets requiring execution necessities as far as throughput and dormancy are concerned. To this end, 802.11ah conveys an irreversible communication innovation in the sub‐1 GHz Industrial, Scientific, and Medical (ISM) band, which depends on OFDM and features a wide range of bandwidths (1, 2, 4, 8 and 16 MHz [5]) for data transmissions just as adjustment to coding and modulation. The standard bandwidth has been set up to 1 or 2 MHz and offer higher data rates for the carrier of 915 MHz.…”

Section: Introductionmentioning

confidence: 99%

“…The narrower the bandwidth, the farther the signals can be transmitted. The technology can accommodate up to 26 channels (8192 devices) [6] with the output power of 20 dBm, where the power amplifier (PA) is responsible for supporting a power output of 14 dBm [5]. The FFT for a 2 MHz channel is 64, with 56 OFDM subcarriers, including 4 pilot‐tone carriers, 52 data carriers, with a carrier spacing of 31.25 kHz (2 MHz/64) (32 s).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Design and optimisation of high‐efficient class‐F ULP‐PA using envelope tracking supply bias control for long‐range low power wireless local area network IEEE 802.11ah standard using 65 nm CMOS technology

Akhter

Amin

Zia

2022

IET Circuits, Devices & Syst

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This article presents the design and optimisation of a sub‐1 GHz class‐F ultra‐low power (ULP) power amplifier (PA) in 65 nm Complementary Metal Oxide Semiconductor (CMOS) technology. An envelope tracking (ET) supply biasing technique is adopted to improve the efficiency of class‐F PA. The ET consist of a pre‐amp right before the detector in order to enhance the efficiency and save adequate amount of dc power consumption. The PA consists of two cascode cells terminated as class‐F with gate‐to‐drain feedback in order to enhance linearity and limit any harmonic component from the input signal. The novel design consumes a dc power of 3.75 mW, power added efficiency of 37.1%, operating at 915–925 MHz unlicensed band and total saturated output power of 22 dBm including 14 dBm power gain at PA, which qualifies under long‐range low power wireless local area network IEEE 802.11ah standard. The inductor‐less design for ET supply bias reduces the chip layout size to 0.13 mm2 only.

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WiFi HaLow for Long-Range and Low-Power Internet of Things: System on Chip Development and Performance Evaluation

Cited by 23 publications

References 14 publications

Practical Application of Internet of Things in the Creation of Intelligent Services and Environments

Practical Application of Internet of Things in the Creation of Intelligent Services and Environments

Resource Management for Massive Internet of Things in IEEE 802.11ah WLAN: Potentials, Current Solutions, and Open Challenges

Design and optimisation of high‐efficient class‐F ULP‐PA using envelope tracking supply bias control for long‐range low power wireless local area network IEEE 802.11ah standard using 65 nm CMOS technology

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