Directional Modulation for Enhanced Privacy in Smart Watch Devices
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2023Access:
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Abel Zandamela, Nicola Marchetti, Adam Narbudowicz, Directional Modulation for Enhanced Privacy in Smart Watch Devices, IEEE Antennas & Propagation Magazine, 2023Abstract:
This article studies security aspects of data transmission in on-body Internet of Things (IoT) devices through the use of Directional Modulation (DM) from a smart watch integrated antenna. DM is a beamsteering-based Physical Layer Security (PLS) method used to transmit baseband constellations to known secure locations, while simultaneously scrambling them in other directions. However, in the state-of-the-art DM is implemented using large arrays, which are out-sized for many on-body IoT devices. To overcome this challenge, this study proposes multimodal ultra-thin compact antennas suitable for integration
into smart watches. These antennas present advanced beamsteering capabilities that allow the implementation of DM from a low-thickness structure of up to 0.57 mm or 1/100th of wavelength at the center operating frequency. Two different DM implementations (simultaneous multiport transmission and an energy-efficient single-port transmission) are tested using a multi-layer phantom. Overall, secure steerable transmissions are realized, and experimental verifications are carried out to validate the proposed concept. Ultimately, this article demonstrates the feasibility of applying new energy-efficient and low-cost security techniques to enhance the privacy of resource-constrained IoT devices.
Sponsor
Grant Number
Science Foundation Ireland (SFI)
18/SIRG/5612
Author's Homepage:
http://people.tcd.ie/zandameahttp://people.tcd.ie/marchetn
http://people.tcd.ie/narbudoa
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IEEE Antennas & Propagation MagazineAvailability:
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TelecommunicationsMetadata
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