BCAuth: Physical Layer Enhanced Authentication and Attack Tracing for Backscatter Communications

Wang, Pu; Yan, Zheng; Zeng, Kai

doi:10.1109/tifs.2022.3195407

Cited by 18 publications

(4 citation statements)

References 52 publications

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“…Hence, researchers work on novel physical layer security algorithms for BC. Some of the proposed solutions are to generate artificial noise to degrade the channel quality of adversary nodes and tune the reflection coefficient to increase the security of the communication link [69][70][71][72][73].…”

Section: Future Research Directionsmentioning

confidence: 99%

Signal Processing Aspects of Bistatic Backscatter Communication

Kaplan

2024

Linköping Studies in Science and Technology. Licentiate Thesis

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Passive Internet-of-Things (IoT), a new paradigm based on battery-free devices, is a promising technology to enable several use cases that require connectivity with stringent requirements in terms of cost, complexity, and energy efficiency. These use cases span critical sectors, such as healthcare, transportation, and agriculture. Passive IoT relies on the development of technologies such as radio frequency (RF) energy harvesting, low-power computing, and backscatter communication. Particularly, backscatter communication allows devices to modulate its information on external RF signals that are backscattered to the receiver or reader.BC considers the following elements: a carrier emitter (CE), a reader, and a backscatter device (BD). The main BC configurations are monostatic BC (MoBC), ambient BC (AmBC) and bistatic BC (BiBC). In a MoBC setup, the CE and reader are co-located and share parts of the same infrastructure. A monostatic system suffers from round-trip path loss, and requires full-duplex technology if the same antennas are simultaneously used for transmission and reception. In an AmBC setup, CE and reader are in different locations, while the CE is not considered dedicated. AmBC uses ambient sources to transmit information, such as Wi-Fi, Bluetooth, and TV signals. In BiBC, the CE and reader are also spatially separated from each other, but there is a dedicated CE. In addition, BiBC can operate in half duplex mode, thus avoiding the complexity associated to the full-duplex operation.Due to the double path-loss effect on the two-way backscatter link, the received backscattered signal is typically weak compared to the direct link interference (DLI) from a CE. This requires a high dynamic range of the circuitry in the reader. As a result, a high-resolution analog-to-digital converter (ADC) is required to detect the weak backscattered signal under heavy DLI; this represents a great limitation because ADCs are major power consumers. Nonetheless, the benefits provided by multiple-antenna and distributed multiple-input multiple-output (MIMO) technologies can be explored to circumvent the limitations of BiBC, which is the main focus of this thesis.

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Section: Future Research Directionsmentioning

confidence: 99%

Signal Processing Aspects of Bistatic Backscatter Communication

Kaplan

2024

Linköping Studies in Science and Technology. Licentiate Thesis

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“…For IoT devices, in addition to improving their power storage and computational capacity, green technologies are highly expected. Besides, parallel processing of big data (e.g., MapReduce [140] and cloud computing [141]), backscatter communication [142] and 6G technologies [143] should be applied to improve processing, communication and connectivity efficiency.…”

Section: B Efficiencymentioning

confidence: 99%

A Survey on Blockchain-Based Trust Management for Internet of Things

Liu

Wang

Yan

et al. 2023

IEEE Internet Things J.

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Internet of Things (IoT) aims to create a vast network with billions of things that can seamlessly create and exchange data, establishing intelligent interactions between people and objects around them. It is characterized with openness, heterogeneity and dynamicity, which inevitably introduce severe security, privacy and trust issues that hinder the widespread application of IoT. Trust Management (TM) holds great promise in identifying malicious nodes, maintaining trust relationships and enhancing system security. Traditional TM systems (TMSs) can be classified into centralized, semi-centralized and distributed ones, all three of which suffer from critical challenges and thus are not sufficient for facilitating IoT development. Blockchain, as a disruptive technology, can help addressing the challenges of TM in IoT, thanks to its advanced features such as decentralization, consistency and tamper-proofing. As a result, blockchain-based TM (BC-TM) has been extensively studied in recent years to achieve decentralized TM in IoT. However, it still lacks a comprehensive survey on the current state of arts. To fill this gap, in this paper, we conduct a serious survey on BC-TM in IoT. We first propose a set of evaluation criteria that should be met by a TMS in IoT. Then, we propose a taxonomy of TMSs, and continue with a thorough review on BC-TM in IoT by employing the proposed criteria. In the end, based on the review, a series of open issues are identified, and future research directions are suggested.

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“…Moreover, the unlicensed and shared nature of the wireless spectrum in which BC operates raises concerns about interference and unauthorized access. Hence, ensuring the security of the BC system remains a critical challenge that should be considered in future wireless communication technologies such as sixth generation (6G) [5][6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Secrecy Performance Analysis of Backscatter Communications with Side Information

Kaveh,

Rostami Ghadi,

Jäntti

et al. 2023

Sensors

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Backscatter communication (BC) systems are a promising technology for internet of things (IoT) applications that allow devices to transmit information by modulating ambient radio signals without the need for a dedicated power source. However, the security of BC systems is a critical concern due to the vulnerability of the wireless channel. This paper investigates the impact of side information (SI) on the secrecy performance of BC systems. SI mainly refers to the additional knowledge that is available to the communicating parties beyond transmitted data, which can be used to enhance reliability, efficiency, security, and quality of service in various communication systems. In particular, in this paper, by considering a non-causally known SI at the transmitter, we derive compact analytical expressions of average secrecy capacity (ASC) and secrecy outage probability (SOP) for the proposed system model to analyze how SI affects the secrecy performance of BC systems. Moreover, a Monte Carlo simulation validates the accuracy of our analytical results and reveals that considering such knowledge at the transmitter has constructive effects on the system performance and ensures reliable communication with higher rates than the conventional BC systems without SI, namely, lower SOP and higher ASC are achievable.

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BCAuth: Physical Layer Enhanced Authentication and Attack Tracing for Backscatter Communications

Cited by 18 publications

References 52 publications

Signal Processing Aspects of Bistatic Backscatter Communication

Signal Processing Aspects of Bistatic Backscatter Communication

A Survey on Blockchain-Based Trust Management for Internet of Things

Secrecy Performance Analysis of Backscatter Communications with Side Information

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