Secure Communication in Wireless Information Systems
Summary
Secure communication in wireless information systems encompasses a spectrum of techniques that safeguard confidentiality, integrity and availability of data transmitted over open radio channels. Physical-layer security complements traditional cryptographic methods by exploiting channel characteristics and information-theoretic principles to achieve provable secrecy even against adversaries with unbounded computing power. Key approaches include wiretap channel coding, artificial noise generation, beamforming and cooperative jamming. Cognitive and dynamic spectrum access further enhance resilience by evading interference and hostile jamming. Advances in secure key distribution, lightweight encryption and machine-learning-assisted intrusion detection address resource constraints and evolving threat models in the Internet of Things, 5G and beyond. Emerging paradigms such as identification via channels and physical unclonable functions offer new avenues for authentication and confidential sensing. Together, these developments underpin robust, scalable frameworks for global wireless networks, from sensor infrastructures and vehicular communications to critical-infrastructure control and defence applications.
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Secure Communication in Wireless Information Systems publication trend
The graph below shows the total number of articles in secure communication in wireless information systems across all publications each year (not limited to Nature Index journals).
Technical terms
Wiretap channel: communication model with a legitimate receiver and an eavesdropper, used to study information-theoretic secrecy.
Secrecy capacity: maximum rate at which information can be transmitted securely over a channel without leakage to an eavesdropper.
Arbitrarily varying channel (AVC): channel whose state can change unpredictably over time, modelling adversarial or uncertain interference.
Super-activation: effect whereby two channels with zero individual secrecy capacity yield positive capacity when used together.
Frequency hopping: anti-jamming technique that rapidly switches carrier frequencies in a pseudorandom pattern.
OFDMA: multiplexing method dividing the spectrum into orthogonal subcarriers allocated to different users.
Jamming: deliberate interference introduced by an adversary to degrade communication performance.
References
- Super-Activation as a Unique Feature of Secure Communication in Malicious Environments. Information (2016).
- Secure Collision-Free Frequency Hopping for OFDMA-Based Wireless Networks. EURASIP Journal on Advances in Signal Processing (2009).
- List-Decoding Capacity of the Gaussian Arbitrarily-Varying Channel. Entropy (2019).
- Minimax Converse for Identification via Channels. IEEE Transactions on Information Theory (2021).
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