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Making Wi-Fi Fit for the Tactile Internet: Low-Latency Wi-Fi Flooding Using Concurrent Transmissions

Gringoli, Francesco and Klose, Robin and Hollick, Matthias and Ali, Nahla (2018):
Making Wi-Fi Fit for the Tactile Internet: Low-Latency Wi-Fi Flooding Using Concurrent Transmissions.
In: 2018 IEEE International Conference on Communications Workshops (ICC Workshops), ISSN 2474-9133, DOI: 10.1109/ICCW.2018.8403487, [Conference or Workshop Item]

Abstract

Real-time human-to-machine and machine-to-machine interactions at the edge of the Internet are the key drivers for research in high-speed and low-latency wireless communication. In order to meet the most stringent latency demands, such interactions should be carried out autonomously by groups of nodes at the edge, potentially resorting to specialized physical layer techniques. While past research has mostly focused on 5G cellular network technology, we assess the feasibility to utilize IEEE 802.11 (Wi-Fi) technology for this purpose. In contrast to existing work on macrodiversity schemes to enhance network capacities, we highlight the potential of macrodiversity to reduce the latency in one-to-many communication scenarios through concurrent network flooding. To this end, we study the practical feasibility of concurrent transmissions with IEEE 802.11, while taking the characteristics of both the DSSS PHY and the OFDM PHY of IEEE 802.11 into account. In particular, we quantify the impact of the limiting factors that impair the decodability of concurrent Wi-Fi transmissions and analyze their combined effects in simulations and practical SDR testbed experiments. In doing so, we also assess the capability of commodity hardware to decode concurrent Wi-Fi transmissions while deliberately introducing signal impairments by tuning the limiting factors. With this, we identify the key parameter limits to enable low-latency flooding at the edge with IEEE 802.11.

Item Type: Conference or Workshop Item
Erschienen: 2018
Creators: Gringoli, Francesco and Klose, Robin and Hollick, Matthias and Ali, Nahla
Title: Making Wi-Fi Fit for the Tactile Internet: Low-Latency Wi-Fi Flooding Using Concurrent Transmissions
Language: English
Abstract:

Real-time human-to-machine and machine-to-machine interactions at the edge of the Internet are the key drivers for research in high-speed and low-latency wireless communication. In order to meet the most stringent latency demands, such interactions should be carried out autonomously by groups of nodes at the edge, potentially resorting to specialized physical layer techniques. While past research has mostly focused on 5G cellular network technology, we assess the feasibility to utilize IEEE 802.11 (Wi-Fi) technology for this purpose. In contrast to existing work on macrodiversity schemes to enhance network capacities, we highlight the potential of macrodiversity to reduce the latency in one-to-many communication scenarios through concurrent network flooding. To this end, we study the practical feasibility of concurrent transmissions with IEEE 802.11, while taking the characteristics of both the DSSS PHY and the OFDM PHY of IEEE 802.11 into account. In particular, we quantify the impact of the limiting factors that impair the decodability of concurrent Wi-Fi transmissions and analyze their combined effects in simulations and practical SDR testbed experiments. In doing so, we also assess the capability of commodity hardware to decode concurrent Wi-Fi transmissions while deliberately introducing signal impairments by tuning the limiting factors. With this, we identify the key parameter limits to enable low-latency flooding at the edge with IEEE 802.11.

Uncontrolled Keywords: cellular radio;MIMO communication;optimisation;probability;radiofrequency interference;resource allocation;telecommunication security;telecommunication traffic;telecommunication security;telecommunication traffic;resource allocation;radio networks;radiofrequency interference;probability;MIMO communication;optimisation;wireless channels;cellular radio;IEEE 802.11 Standard;Spread spectrum communication;OFDM;Wireless sensor networks;Radio transmitters;Synchronization;Wireless fidelity
Divisions: 20 Department of Computer Science
20 Department of Computer Science > Sichere Mobile Netze
DFG-Collaborative Research Centres (incl. Transregio)
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 1053: MAKI – Multi-Mechanisms Adaptation for the Future Internet
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 1053: MAKI – Multi-Mechanisms Adaptation for the Future Internet > C: Communication Mechanisms
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 1053: MAKI – Multi-Mechanisms Adaptation for the Future Internet > C: Communication Mechanisms > Subproject C1: Network-centred perspective
Event Title: 2018 IEEE International Conference on Communications Workshops (ICC Workshops)
Date Deposited: 04 Oct 2018 14:41
DOI: 10.1109/ICCW.2018.8403487
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