Wireless communication Archives - IEEE Transactions on Quantum Engineering

Orthogonal Frequency-Division Multiplexing Continuous-Variable Terahertz QKD for Large-Scale Wireless Quantum Communication

March 2, 2026Mingqi Zhang, Kaveh DelfanazariQuantum InternetFast Fourier transforms, Frequency modulation, Hardware, Noise, OFDM, Protocols, Security, Terahertz communications, Terahertz radiation, Wireless communication

Abstract: In this article, we introduce a continuous-variable quantum key distribution (CVQKD) protocol that combines orthogonal frequency-division multiplexing with terahertz (THz) carriers to deliver high-throughput and hardware-compatible quantum communication. By distributing quantum states across multiple subcarriers, our approach achieves a noticeable increase in spectral efficiency while mitigating dispersion and atmospheric losses that limit the performance […]

Quantum Rotation Diversity in Displaced Squeezed Binary Phase-Shift Keying

January 29, 2026Ioannis KrikidisQuantum InternetBinary phase shift keying, Fading channels, Noise, Optical fiber communication, Optical fibers, Optical receivers, Optical transmitters, Photonics, Symbols, Wireless communication

Abstract: We propose a quantum rotation diversity (QRD) scheme for optical quantum communication using binary phase-shift-keying displaced squeezed states and homodyne detection over Gamma–Gamma turbulence channels. Consecutive temporal modes are coupled by a passive orthogonal rotation that redistributes the displacement amplitude between slots, yielding a diversity order of two under independent fading and joint maximum-likelihood […]

Millimeter-Waves to Terahertz SISO and MIMO Continuous Variable Quantum Key Distribution

June 14, 2023Mingqi ZhangQuantum Networking & CommunicationsCryogenics, Detectors, Linear antenna arrays, MIMO communication, Quantum key distribution, Transmitters, Wireless communication

With the exponentially increased demands for large bandwidth, it is important to think about the best network platform as well as the security and privacy of the information in communication networks. Millimeter (mm)-waves and terahertz (THz) with high carrier frequencies are proposed as the enabling technologies to overcome Shannon’s channel capacity limit of existing communication […]

MIMO Terahertz Quantum Key Distribution Under Restricted Eavesdropping

June 14, 2023Neel Kanth KunduQuantum InformationEavesdropping, MIMO communication, Photonics, Quantum computing, Quantum key distribution, Security, Wireless communication

Quantum key distribution (QKD) can provide unconditional security to next-generation communication networks guaranteed by the laws of quantum physics. This article studies the secret key rate (SKR) of a continuous variable QKD (CV-QKD) system using multiple-input multiple-output (MIMO) transmission and operating at terahertz (THz) frequencies. Distinct from previous works, we consider a practical “restricted” eavesdropping […]

Programmable Quantum Networked Microgrids

August 26, 2020Zefan Tang; Peng Zhang; Walter O. Krawec; Zimin JiangOpen Access, Quantum InformationCryptography, Data communication, IP networks, Microgrids, Optical receivers, Optical transmitters, Wireless communication

Quantum key distribution (QKD) provides a potent solution to securely distribute keys for two parties. However, QKD itself is vulnerable to denial of service (DoS) attacks. A flexible and resilient QKD-enabled networked microgrids (NMs) architecture is needed but does not yet exist. In this article, we present a programmable quantum NMs (PQNMs) architecture. It is […]