On the Feasibility of Location-based Discovery and Vertical Handover in IEEE 802.11ah

Santi, Sintha Soraya; Lemić, Filip; Famaey, Jeroen

doi:10.1109/wcnc45663.2020.9120464

Cited by 2 publications

(4 citation statements)

References 18 publications

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“…Due to the above-mentioned design advantages of location-based vertical handover outlined in [6], different flavors of this algorithm have been evaluated for established LPWAN technologies such as Sigfox and LoRa [6], as well as for the combination of NB-IoT and IEEE 802.11ah, though the latter solely in the form of a simulation-based study [22]. These studies generally suggest highly promising performance of the location-based vertical handover, especially for LPWAN technologies for which energy efficiency is among the primary concerns.…”

Section: B Location-based Vertical Handovermentioning

confidence: 99%

“…Such a combination, although seemingly natural due to the seamlessness of Wi-Fi, has received very little attention from the community to date. Finally, we carry out our evaluation using experimental measurements collected in a realistic setup relevant for both technologies (e.g., the aforementioned data offloading and firmware update scenario), which is in contrast to contemporary IEEE 802.11ah-focused studies that are predominantly simulation-based (e.g., [22]).…”

Section: B Location-based Vertical Handovermentioning

confidence: 99%

“…The first considered algorithm is based on traditional beacon listening [1], [22] and is, therefore, considered as the baseline algorithm for this work. In Algorithm 1 (cf., Appendix), beacons are periodically transmitted by an AP with a fixed amount of time between them.…”

Section: A Beacon Listening-based Vertical Handovermentioning

confidence: 99%

“…Upon waking up to listen for beacons, if a beacon is received the device can start the association procedure. This basic version of the algorithm is based on dropping the communication link even if a single beacon is missed [22]. However, due to the fact that the operational frequencies in IEEE 802.11ah and IEEE 802.11n are in the license-free frequency bands, there are various other technologies expected to operate in these frequency bands.…”

Section: A Beacon Listening-based Vertical Handovermentioning

confidence: 99%

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Location-Based Vertical Handovers in Wi-Fi Networks With IEEE 802.11ah

et al. 2021

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IEEE 802.11ah is a new sub-GHz Wi-Fi technology that provides several advantages over traditional Wi-Fi such as a higher communication range, enhanced scalability, and lower energy consumption, however at the cost of substantially lower throughput. With the aim of simultaneously benefiting from multiple Wi-Fi technologies, recent proposals suggest combining a number of these technologies into a single device. This, however, compromises the energy efficiency of the device, as it implies concurrent utilization of different radio access interfaces. To mitigate this issue, the device should utilize the interface of a certain technology only when there is a high probability of establishing communication over that technology. Traditional vertical handover algorithms are not designed for this purpose as they rely on continuous beacon listening or active probing, even if the device is not in the range of a given technology. To address this issue, vertical handover algorithms based on the combination of devices' physical locations and either Radio Environmental Maps (REM) or propagation modeling have been proposed. Moreover, their suitability and encouraging performance have been demonstrated for a number of the established Low-Power Wide-Area Network (LPWAN) technologies. However, their appropriateness for Wi-Fi-based networks with IEEE 802.11ah is currently unknown, which provides the main motivation for this work. Specifically, we carry out an extensive experimental performance evaluation of two locationbased vertical handover algorithms in the context of Wi-Fi-based networks with IEEE 802.11ah. Our results demonstrate the feasibility of location-based handovers in this context. We base our findings on the fact that location-based algorithms can maintain comparable data communication quality as the beacon listeningbased baseline, while simultaneously reducing the utilization of the IEEE 802.11ah and IEEE 802.11n radio access interfaces by a factor of 2 and 10, respectively.

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Section: B Location-based Vertical Handovermentioning

confidence: 99%

Section: B Location-based Vertical Handovermentioning

confidence: 99%

Section: A Beacon Listening-based Vertical Handovermentioning

confidence: 99%

Section: A Beacon Listening-based Vertical Handovermentioning

confidence: 99%

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