Preprint Article Version 1 This version is not peer-reviewed

Interference-Aware Adaptive Beam Alignment for Hyper-Dense IEEE 802.11ax Internet-of-Things Networks

Version 1 : Received: 15 August 2018 / Approved: 15 August 2018 / Online: 15 August 2018 (04:33:59 CEST)

A peer-reviewed article of this Preprint also exists.

Kwon, D.; Kim, S.-W.; Kim, J.; Mohaisen, A. Interference-Aware Adaptive Beam Alignment for Hyper-Dense IEEE 802.11ax Internet-of-Things Networks. Sensors 2018, 18, 3364. Kwon, D.; Kim, S.-W.; Kim, J.; Mohaisen, A. Interference-Aware Adaptive Beam Alignment for Hyper-Dense IEEE 802.11ax Internet-of-Things Networks. Sensors 2018, 18, 3364.

Journal reference: Sensors 2018, 18, 3364
DOI: 10.3390/s18103364

Abstract

The increased deployment of IoT devices in specific areas results in an interference among them and the quality of communications can be severely degraded. To deal with this interference issue, the IEEE 802.11ax standard has been established in hyper-densely wireless networking systems. The 802.11ax adopts a new candidate technology that is called multiple network allocation vector in order to mitigate the interference problem. In this paper, we point out potential problem in multiple network allocation vector which can cause delays to the communication among IoT devices in hyper-dense wireless networks. Furthermore, this paper introduces an adaptive beam alignment algorithm for interference issue resolution. In addition, we analyze potential delays of communications among IoT devices under interference conditions. Lastly, we simulate our proposed algorithm in densely deployed environment and show that the interference issue can be mitigated and the IEEE 802.11ax-based IoT devices can utilize the air interface more fairly compared to conventional IEEE 802.11 distributed coordination function.

Subject Areas

IEEE 802.11ax; multiple NAVs; Internet-of-Things (IoT); beamforming

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