Outdoor Long-Range WLANs: A Lesson for IEEE 802.11ah

Aust, Stefan; Prasad, R. Venkatesha; Niemegeers, Ignas

doi:10.1109/comst.2015.2429311

Cited by 83 publications

(48 citation statements)

References 58 publications

(116 reference statements)

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“…For 1 MHz bandwidth, 802.11ah utilizes 32 subcarriers and 32-point IFFT. It includes 1 DC component, 2 pilot components, 24 data carriers, and 5 zero components [3].…”

Section: Improvements On Physical Layer Andmentioning

confidence: 99%

“…The structure of 802.11ah physical layer [1,3] is as in Figure 2, which includes blocks as PHY service data unit (PSDU) generator, MCS setting, transmitter, receiver, error rate calculation (ERC), and signal to noise (SNR) calculation.…”

Section: Structure Of Phy Layermentioning

confidence: 99%

“…It operates at the Sub-1 GHz (S1G) industrial, scientific, medical (ISM) radio-band [2]. Due to the lower center frequencies, more robust PHY layer, and enhancement on MAC layer protocol, the transmission range is extended to 1km, the data rates are at least 100 kbps, and the number of nodes permitted is raised up to 8191 [1,3]. Benefiting from the lower power consumption, it can support the application of the Internet of Things (IoT) by creating large groups of STAs and sensors that cooperate to share signals [4].…”

Section: Introductionmentioning

confidence: 99%

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Performance and Power Consumption Analysis of IEEE802.11ah for Smart Grid

Zheng

Cui

Qiao

et al. 2018

Wireless Communications and Mobile Computing

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IEEE802.11ah is a Wireless Local Area Network (WLAN) designed for the application of Internet of Things (IoT) and Machine to Machine (M2M), mainly used in sensor network, smart metering, car network, health care, and other emerging fields. IEEE802.11ah inherits the IEEE802.11n\ac technology. At present, smart grid has completed the installation of optical fiber communication as its backbone network; WLAN can be used to build new wireless sensor network for smart grid by improving the transmission distance, speed, and power efficiency. The critical features of 802.11ah make it a powerful candidate for WLAN in smart grid, such as intelligent substation sensor network and automatic metering system (AMS). This paper simulates the new added highly robust 1MHz bandwidth and Modulation Coding Scheme (MCS) 10 in the 802.11ah physical layer and analyzes the coverage range and energy-saving performance of 802.11ah based on the simulation results. The analysis shows that the 802.11ah at 1 MHZ MCS 10 mode can obtain 2.5-3 dB gain. Combined with advantages of Sub-1GHz working frequency, 802.11ah could enlarge the coverage range by five times, compared to 2.4 GHz Wi-Fi. On the other side, 802.11ah module used in the smart grid can greatly reduce power consumption, especially in the AMS with a 1.1 kW.H power savings per year. 802.11ah not only provides the flexibility and low cost features of wireless communication, but also brings coverage and energy-saving performance improvements, which leads to good economic benefit.

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“…For 1 MHz bandwidth, 802.11ah utilizes 32 subcarriers and 32-point IFFT. It includes 1 DC component, 2 pilot components, 24 data carriers, and 5 zero components [3].…”

Section: Improvements On Physical Layer Andmentioning

confidence: 99%

Section: Structure Of Phy Layermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Performance and Power Consumption Analysis of IEEE802.11ah for Smart Grid

Zheng

Cui

Qiao

et al. 2018

Wireless Communications and Mobile Computing

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“…Based on the IEEE 802.11ah, the Wi-Fi Alliance has recently introduced the Wi-Fi HaLow program and expects to launch the certification process in 2018. Therefore, IEEE 802.11ah is the first approximation of IEEE 802.11 WG that can enable IoT specific features within thousands of stations operating at Sub 1GHz Industrial, Scientific and Medical (ISM) frequency band [3,4,5]. The amendment has been designed based on the following uses cases:

Smart sensors and meters.

…”

Section: Introductionmentioning

confidence: 99%

IEEE 802.11ah: A Technology to Face the IoT Challenge

Baños-Gonzalez

Afaqui

López-Aguilera

et al. 2016

Sensors

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Since the conception of the Internet of things (IoT), a large number of promising applications and technologies have been developed, which will change different aspects in our daily life. This paper explores the key characteristics of the forthcoming IEEE 802.11ah specification. This future IEEE 802.11 standard aims to amend the IEEE 802.11 legacy specification to support IoT requirements. We present a thorough evaluation of the foregoing amendment in comparison to the most notable IEEE 802.11 standards. In addition, we expose the capabilities of future IEEE 802.11ah in supporting different IoT applications. Also, we provide a brief overview of the technology contenders that are competing to cover the IoT communications framework. Numerical results are presented showing how the future IEEE 802.11ah specification offers the features required by IoT communications, thus putting forward IEEE 802.11ah as a technology to cater the needs of the Internet of Things paradigm.

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“…Ellos comparan IEEE 80.11ah con 802.11b y 802.11n para tres casos de uso en interiores sin tomar en cuenta escenarios exteriores, que es el caso más utilizable para IEEE 802.11ah, (en nuestro trabajo actual, incluimos comparaciones entre casos de uso tanto en interiores como en exteriores). El trabajo en [6], proporciona una revisión exhaustiva de IEEE 802.11ah. Además, los autores resumen los procedimientos estandarizados así como los desafíos técnicos esperados en la adaptación del estándar IEEE 802.11ah.…”

Section: Introductionunclassified

Throughput and Range Characterization of IEEE 802.11ah

Banos

Afaqui

López

et al. 2017

IEEE Latin Am. Trans.

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Abstract-The most essential part of Internet of Things (IoT) infrastructure is the wireless communication system that acts as a bridge for the delivery of data and control messages. However, the existing wireless technologies lack the ability to support a huge amount of data exchange from many battery driven devices spread over a wide area. In order to support the IoT paradigm, the IEEE 802.11 standard committee is in process of introducing a new standard, called IEEE 802.11ah. This is one of the most promising and appealing standards, which aims to bridge the gap between traditional mobile networks and the demands of the IoT.In this paper, we first discuss the main PHY and MAC layer amendments proposed for IEEE 802.11ah. Furthermore, we investigate the operability of IEEE 802.11ah as a backhaul link to connect devices over a long range. Additionally, we compare the aforementioned standard with previous notable IEEE 802.11 amendments (i.e. IEEE 802.11n and IEEE 802.11ac) in terms of throughput (with and without frame aggregation) by utilizing the most robust modulation schemes. The results show an improved performance of IEEE 802.11ah (in terms of power received at long range while experiencing different packet error rates) as compared to previous IEEE 802.11 standards.

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Outdoor Long-Range WLANs: A Lesson for IEEE 802.11ah

Cited by 83 publications

References 58 publications

Performance and Power Consumption Analysis of IEEE802.11ah for Smart Grid

Performance and Power Consumption Analysis of IEEE802.11ah for Smart Grid

IEEE 802.11ah: A Technology to Face the IoT Challenge

Throughput and Range Characterization of IEEE 802.11ah

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