Realizing physical layer security in large wireless networks using spectrum programmability

Faycal Bouhafs, Frank den Hartog, Alessandro Raschella, Michael Mackay, Qi Shi, Sinan Sinanovic

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Abstract

This paper explores a practical approach to securing large wireless networks by applying Physical Layer Security (PLS). To date, PLS has mostly been seen as an information theory concept with few practical implementations. We present an Access Point (AP) selection algorithm that uses PLS to find an AP that offers the highest secrecy capacity to a legitimate user. We then propose an implementation of this algorithm using the novel concept of spectrum programming which extends Software-Defined Networking to the physical and data-link layers and makes wireless network management and control more flexible and scalable than traditional platforms. Our Wi-Fi network evaluation results show that our approach outperforms conventional solutions in terms of security, but at the expense of communication capacity, thus identifying a trade-off between security and performance. These results encourage implementation and extension to further wireless technologies.
Original languageEnglish
Title of host publication2020 IEEE Globecom Workshops (GC Wkshps)
ISBN (Electronic)9781728173078
DOIs
Publication statusPublished - 5 Mar 2021

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