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The quantum random number generation based on laser phase noise, which is featured with high generation rate and ease for photonic integration, has been extensively investigated and demonstrated. Despite these advancements, a theoretical…

Quantum Physics · Physics 2026-04-17 Jinlu Liu , Jie Yang , Yu Gao , Guowei Zhang , Yan Pan , Heng Wang , Yuyang Ding , Yang Li , Wei Huang , Bingjie Xu , Wei Chen

Short range channels commonly arise in millimeter wave (mmWave) wearable settings, where the length of the antenna arrays can be comparable to the distance between the radios. Conventional mmWave MIMO channel estimation techniques based on…

Signal Processing · Electrical Eng. & Systems 2019-06-24 Jarkko Kaleva , Nitin Jonathan Myers , Antti Tölli , Robert W. Heath

With the introduction of shared spectrum sensing and beam-forming based multi-antenna transceivers, 5G networks demand spectrum sensing to identify opportunities in time, frequency, and spatial domains. Narrow beam-forming makes it…

Signal Processing · Electrical Eng. & Systems 2021-07-26 Piyush Sahoo , Romesh Rajoria , Shivam Chandhok , S. J. Darak , Danilo Pau , Hem-Dutt Dabral

The fundamental security and efficiency considerations for fresh key generation will be described. It is shown that the attacker's optimal probability of finding the generated key is an indispensable measure of security and that this…

Quantum Physics · Physics 2016-11-15 Horace P. Yuen

Accurately localizing multiple sources is a critical task with various applications in wireless communications, such as emergency services, including natural post-disaster search and rescue operations. However, scenarios where the receiver…

Signal Processing · Electrical Eng. & Systems 2025-04-10 Amir Mansourian , Alireza Fadakar , Saeed Akhavan , Behrouz Maham

This paper contributes to a development of randomized methods for neural networks. The proposed learner model is generated incrementally by stochastic configuration (SC) algorithms, termed as Stochastic Configuration Networks (SCNs). In…

Neural and Evolutionary Computing · Computer Science 2018-02-14 Dianhui Wang , Ming Li

Information-theoretic secret-key agreement is perhaps the most practically feasible mechanism that provides unconditional security at the physical layer to date. In this paper, we consider the problem of secret-key agreement by sharing…

We study the fundamental limits to secret key generation from an excited distributed source (EDS). In an EDS a pair of terminals observe dependent sources of randomness excited by a pre-arranged signal. We first determine the secret key…

Information Theory · Computer Science 2016-11-17 Tzu-Han Chou , Stark C. Draper , Akbar M. Sayeed

Physical-layer key generation (PKG) in multi-user massive MIMO networks faces great challenges due to the large length of pilots and the high dimension of channel matrix. To tackle these problems, we propose a novel massive MIMO key…

Information Theory · Computer Science 2020-05-19 You Chen , Guyue Li , Chen Sun , Junqing Zhang , Eduard Jorswieck , Bin Xiao

We study estimation in the low signal-to-noise ratio (SNR) regime for a broad class of Gaussian latent-variable models, including Gaussian mixtures and orbit recovery problems. We show that, in this regime, the generalized method-of-moments…

Statistics Theory · Mathematics 2026-05-29 Amnon Balanov , Tamir Bendory , Dan Edidin

Leakage of information in power line communication networks is a threat to privacy and security both in smart grids and in-home applications. A way to enhance security is to encode the transmitted information with a secret key. Relying on…

Cryptography and Security · Computer Science 2020-04-14 Federico Passerini , Andrea M. Tonello

We investigate beamforming and artificial noise generation at the secondary transmitters to establish secure transmission in large scale spectrum sharing networks,where multiple non-colluding eavesdroppers attempt to intercept the secondary…

Information Theory · Computer Science 2016-03-14 Yansha Deng , Lifeng Wang , Syed Ali Raza Zaidi , Jinhong Yuan , Maged Elkashlan

Strong authentication in an interconnected wireless environment continues to be an important, but sometimes elusive goal. Research in physical-layer authentication using channel features holds promise as a technique to improve network…

Signal Processing · Electrical Eng. & Systems 2020-09-01 Ken St. Germain , Frank Kragh

In this paper, we propose a new practical power allocation technique based on bit error probability (BEP) for physical layer security systems. It is shown that the secrecy rate that is the most commonly used in physical layer security…

Signal Processing · Electrical Eng. & Systems 2019-07-03 Javad Taghipour , Paeiz Azmi , Nader Mokari , Moslem Forouzesh , Hossein Pishro-Nik

We propose a novel physical layer secret key generation method for the inter-spacecraft communication links. By exploiting the Doppler frequency shifts of the reciprocal spacecraft links as a unique secrecy source, spacecrafts aim to obtain…

Signal Processing · Electrical Eng. & Systems 2020-09-01 Ozan Alp Topal , Gunes Karabulut Kurt , Halim Yanikomeroglu

Deep learning-based physical-layer secret key generation (PKG) has been used to overcome the imperfect uplink/downlink channel reciprocity in frequency division duplexing (FDD) orthogonal frequency division multiplexing (OFDM) systems.…

Information Theory · Computer Science 2024-02-19 Xinwei Zhang , Guyue Li , Junqing Zhang , Linning Peng , Aiqun Hu , Xianbin Wang

Neural networks are widely used to approximate unknown functions in control. A common neural network architecture uses a single hidden layer (i.e. a shallow network), in which the input parameters are fixed in advance and only the output…

Machine Learning · Computer Science 2024-10-08 Andrew Lamperski , Siddharth Salapaka

We consider the estimation of three-dimensional (3D) radar parameters, namely, bearing or angle-of-arrival (AoA), delay or range, and Doppler shift velocity, under a mono-static multiple-input multiple-output (MIMO) joint communications and…

Signal Processing · Electrical Eng. & Systems 2024-05-29 Kuranage Roche Rayan Ranasinghe , Hyeon Seok Rou , Giuseppe Thadeu Freitas de Abreu

We consider secret key generation for a "pairwise independent network" model in which every pair of terminals observes correlated sources that are independent of sources observed by all other pairs of terminals. The terminals are then…

Information Theory · Computer Science 2010-08-09 Sirin Nitinawarat , Chunxuan Ye , Alexander Barg , Prakash Narayan , Alex Reznik

Secret-key generation and agreement based on wireless channel reciprocity offers a promising avenue for securing IoT networks. However, existing approaches predominantly rely on the similarity of instantaneous channel measurement samples…

Cryptography and Security · Computer Science 2025-10-14 Nora Basha , Bechir Hamdaoui , Attila A. Yavuz , Thang Hoang , Mehran Mozaffari Kermani