Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Arabian Journal for Science and Engineering

A Novel Approach to Physical Layer Security in Wireless Networks Using Parametric Wavelet-Based Key Generation

Megha Santhosh Kumar, R. Ramanathan

Published Jun 4, 2025• 3 citations
Publisher
DOI
10.1007/s13369-025-10328-1

Related papers

An Investigation of Secret Key Generation for Physical Layer Security Using Wavelet Packets

Megha Santhosh Kumar, R. Ramanathan, Madaswamy Jayakumar

Wireless Personal Communications•Apr 23, 2021•6 citations

A Survey of Key Generation Techniques in Wireless channels for Physical Layer Security

Joanne Gomes, Sujata Kadam,

Nowadays wireless networks are highly concerned about security. Compared to wireless networks, wired networks are less prone to attacks. The physical layer eavesdropping attack has a significant impact on wireless network security. The use of cryptographic methods at the higher layers of the OSI model is necessary for traditional security in wireless networks. These cryptographic keys can be replaced with key generation at physical layer exploiting the unpredictable channel properties. Current methods for generating wireless keys at the physical layer are examined in this paper. Comprehensive surveys in this regard are conducted of the guiding principles, performance indicators, and key generation process. Techniques for enhancing the effectiveness of key generation are also reviewed. The difficulties of using the strategy in each situation are then discussed, along with key generation applications in diverse situations. The paper ends with several recommendations for future investigations.

International Journal of Intelligent Systems and Applications in Engineering•Mar 24, 2024•0 citations

Comparative Analysis of Quantization Schemes for Physical Layer Key generation

Sujata V. Kadam, Joanne Gomes

Wireless networks get subjected to the different attacks because of it's open nature. Eavesdropping attack, which occurs at the Physical layer of the OSI model, has a great impact on wireless network security. Conventional security in wireless networks depends on the cryptographic techniques. But in wireless sensor networks where a key management infrastructure may not be present and the power resources are also limited, generating a cryptographic key between two mobile entities becomes difficult. Hence Physical layer Security (PLS) has become a novel research solution. In PLS based key generation, a symmetric secret key is obtained at both the ends of the legitimate users using the properties of wireless channel. The key generation process includes four major blocks namely channel measurement, quantization of input samples, error detection and correction and privacy amplification. The output of quantizer has a great effect on the bit mismatch rate (BMR) between the two legitimate users. It also has an impact on key generation rate (KGR). Hence selecting a proper quantizer becomes very essential. In this paper different Quantization schemes are analyzed to achieve effective PLS between the two legitimate users.

International Conference on Advances in Science and Technology (ICAST)•Dec 2, 2022•4 citations

A Novel Approach for Physical Layer Cryptography in Wireless Networks

Lorenzo Mucchi, Luca Simone Ronga, E. Del Re

Wireless Personal Communications•Mar 11, 2010•15 citations

Physical layer secure key generation with nonlinear preprocessing of RSS for power constraint wireless networks

Ravindra Sharma, Raksha Upadhyay

Summary There has been growing attention in physical layer security (PLS) techniques for wireless networks. PLS techniques are based on physical layer characteristics and are less computationally complex than traditional cryptographic approaches, which work on higher layers of networks. Physical layer key generation (PLKG) is one of the prominent key based PLS techniques that exploits reciprocity and randomness of wireless fading channel to establish secure communication between two transceivers. PLKG system consists of five stages as RSS measurement, its preprocessing, quantization and encoding, key reconciliation, and privacy amplification. Each stage has a substantial role in deciding the performance of PLKG system, but RSS preprocessing offers wide scope in performance improvement for the system. In this work, we propose PLKG system using a new class of preprocessing technique first time, which is nonlinear. We formulated the problem uniquely and considered two nonlinear techniques: nonlinear preprocessing using expander (NLPE) and nonlinear preprocessing using compressor (NLPC). We analyzed the performance of system using NLPE and NLPC and found NLPE is most suitable. Performance of the system is evaluated in terms of bit disagreement rate (BDR) and randomness of keys. Results show that NLPE performs extremely well, as compared with linear approach and without preprocessing approach, especially at low signal to noise ratio (SNR) range. Emerging wireless networks such as internet of things (IoT), centralized radio access network (CRAN), wireless sensor network (WSN), and so forth are being operated at lower transmission power with lightweight hardware. Hence, for such type of power constraint networks, proposed PLKG system with NLPE can be proven a perfect security solution.

International Journal of Communication Systems•Sep 15, 2021•8 citations

Recent approaches to wireless physical layer security

Mohammad Tahir, Sigit Puspito Wigati Jarot, Muhammad Siddiqi

IIUM Press eBooks•Jan 1, 2011•0 citations
Nowadays wireless networks are highly concerned about security. Compared to wireless networks, wired networks are less prone to attacks. The physical layer eavesdropping attack has a significant impact on wireless network security. The use of cryptographic methods at the higher layers of the OSI model is necessary for traditional security in wireless networks. These cryptographic keys can be replaced with key generation at physical layer exploiting the unpredictable channel properties. Current methods for generating wireless keys at the physical layer are examined in this paper. Comprehensive surveys in this regard are conducted of the guiding principles, performance indicators, and key generation process. Techniques for enhancing the effectiveness of key generation are also reviewed. The difficulties of using the strategy in each situation are then discussed, along with key generation applications in diverse situations. The paper ends with several recommendations for future investigations.
Wireless networks get subjected to the different attacks because of it's open nature. Eavesdropping attack, which occurs at the Physical layer of the OSI model, has a great impact on wireless network security. Conventional security in wireless networks depends on the cryptographic techniques. But in wireless sensor networks where a key management infrastructure may not be present and the power resources are also limited, generating a cryptographic key between two mobile entities becomes difficult. Hence Physical layer Security (PLS) has become a novel research solution. In PLS based key generation, a symmetric secret key is obtained at both the ends of the legitimate users using the properties of wireless channel. The key generation process includes four major blocks namely channel measurement, quantization of input samples, error detection and correction and privacy amplification. The output of quantizer has a great effect on the bit mismatch rate (BMR) between the two legitimate users. It also has an impact on key generation rate (KGR). Hence selecting a proper quantizer becomes very essential. In this paper different Quantization schemes are analyzed to achieve effective PLS between the two legitimate users.
Summary There has been growing attention in physical layer security (PLS) techniques for wireless networks. PLS techniques are based on physical layer characteristics and are less computationally complex than traditional cryptographic approaches, which work on higher layers of networks. Physical layer key generation (PLKG) is one of the prominent key based PLS techniques that exploits reciprocity and randomness of wireless fading channel to establish secure communication between two transceivers. PLKG system consists of five stages as RSS measurement, its preprocessing, quantization and encoding, key reconciliation, and privacy amplification. Each stage has a substantial role in deciding the performance of PLKG system, but RSS preprocessing offers wide scope in performance improvement for the system. In this work, we propose PLKG system using a new class of preprocessing technique first time, which is nonlinear. We formulated the problem uniquely and considered two nonlinear techniques: nonlinear preprocessing using expander (NLPE) and nonlinear preprocessing using compressor (NLPC). We analyzed the performance of system using NLPE and NLPC and found NLPE is most suitable. Performance of the system is evaluated in terms of bit disagreement rate (BDR) and randomness of keys. Results show that NLPE performs extremely well, as compared with linear approach and without preprocessing approach, especially at low signal to noise ratio (SNR) range. Emerging wireless networks such as internet of things (IoT), centralized radio access network (CRAN), wireless sensor network (WSN), and so forth are being operated at lower transmission power with lightweight hardware. Hence, for such type of power constraint networks, proposed PLKG system with NLPE can be proven a perfect security solution.