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In the context of scene understanding, a variety of methods exists to estimate different information channels from mono or stereo images, including disparity, depth, and normals. Although several advances have been reported in the recent…

Computer Vision and Pattern Recognition · Computer Science 2017-05-29 Paul Guerrero , Holger Winnemöller , Wilmot Li , Niloy J. Mitra

Wireless communication is susceptible to adversarial eavesdropping due to the broadcast nature of the wireless medium. In this paper it is shown how eavesdropping can be alleviated by exploiting the superposition property of the wireless…

Information Theory · Computer Science 2016-11-17 Xiaojun Tang , Ruoheng Liu , Predrag Spasojevic , H. Vincent Poor

Neural networks have become the dominant technique for accurate pitch and periodicity estimation. Although a lot of research has gone into improving network architectures and training paradigms, most approaches operate directly on the raw…

Sound · Computer Science 2025-07-16 David Marttila , Joshua D. Reiss

The secrecy rate region of wiretap interference channels with a multi-antenna passive eavesdropper is studied under receiver energy harvesting constraints. To stay operational in the network, the legitimate receivers demand energy alongside…

Information Theory · Computer Science 2019-03-01 Ali Kariminezhad , Zohaib Hassan Awan , Hendrik Vogt , Aydin Sezgin

Covert channel networks are a well-known method for circumventing the security measures organizations put in place to protect their networks from adversarial attacks. This paper introduces a novel method based on bit-rate modulation for…

Cryptography and Security · Computer Science 2024-04-25 Simone Soderi , Rocco De Nicola

We consider a cognitive radio network where primary users (PUs) employ network coding for data transmissions. We view network coding as a spectrum shaper, in the sense that it increases spectrum availability to secondary users (SUs) and…

Networking and Internet Architecture · Computer Science 2010-08-27 Shanshan Wang , Yalin E. Sagduyu , Junshan Zhang , Jason H. Li

Radio maps that describe spatial variations in wireless signal strength are widely used to optimize networks and support aerial platforms. Their construction requires location-labeled signal measurements from distributed users, raising…

Signal Processing · Electrical Eng. & Systems 2025-12-10 Jijia Tian , Wangqian Chen , Junting Chen , Pooi-Yuen Kam

This paper provides a comprehensive review of the domain of physical layer security in multiuser wireless networks. The essential premise of physical-layer security is to enable the exchange of confidential messages over a wireless medium…

Information Theory · Computer Science 2016-11-18 Amitav Mukherjee , S. A. A. Fakoorian , Jing Huang , A. Lee Swindlehurst

Current security techniques can be implemented either by requiring a secret key exchange or depending on assumptions about the communication channels. In this paper, we show that, by using a physical layer technique known as artificial…

Information Theory · Computer Science 2013-11-05 Shuiyin Liu , Yi Hong , Emanuele Viterbo

Statistical prior channel knowledge, such as the wide-sense-stationary-uncorrelated-scattering (WSSUS) property, and additional side information both can be used to enhance physical layer applications in wireless communication. Generally,…

Signal Processing · Electrical Eng. & Systems 2024-06-07 Benedikt Böck , Michael Baur , Nurettin Turan , Dominik Semmler , Wolfgang Utschick

Power Delay Profile (PDP) plays a crucial role in wireless communications, providing information on multipath propagation and signal strength variations over time. Accurate detection of peaks within PDP is essential to identify dominant…

Signal Processing · Electrical Eng. & Systems 2026-03-23 Ondrej Zeleny , Radek Zavorka , Ales Prokes , Tomas Fryza , Jaroslaw Wojtun , Jan M. Kelner , Cezary Ziolkowski , Aniruddha Chandra

Wyner's elegant model of wiretap channel exploits noise in the communication channel to provide perfect secrecy against a computationally unlimited eavesdropper without requiring a shared key. We consider an adversarial model of wiretap…

Cryptography and Security · Computer Science 2015-04-22 Pengwei Wang , Reihaneh Safavi-Naini

Channel pruning is a powerful technique to reduce the computational overhead of deep neural networks, enabling efficient deployment on resource-constrained devices. However, existing pruning methods often rely on local heuristics or…

Artificial Intelligence · Computer Science 2025-06-16 Zifan Liu , Yuan Cao , Yanwei Yu , Heng Qi , Jie Gui

Deep learning has been recently applied to physical layer processing in digital communication systems in order to improve end-to-end performance. In this work, we introduce a novel deep learning solution for soft bit quantization across…

Signal Processing · Electrical Eng. & Systems 2021-10-20 Marius Arvinte , Jonathan I. Tamir

Traditional physical layer secure beamforming is achieved via precoding before signal transmission using channel state information (CSI). However, imperfect CSI will compromise the performance with imperfect beamforming and potential…

Signal Processing · Electrical Eng. & Systems 2024-02-02 Tongyang Xu , Zhongxiang Wei , Tianhua Xu , Gan Zheng

Noise shaping refers to an analog-to-digital conversion methodology in which quantization error is arranged to lie mostly outside the signal spectrum by means of oversampling and feedback. Recently it has been successfully applied to more…

Information Theory · Computer Science 2015-02-23 Evan Chou , C. Sinan Güntürk , Felix Krahmer , Rayan Saab , Özgür Yılmaz

We consider a cooperative wireless network in the presence of one of more eavesdroppers, and exploit node cooperation for achieving physical (PHY) layer based security. Two different cooperation schemes are considered. In the first scheme,…

Information Theory · Computer Science 2015-05-14 Jiangyuan Li , Athina P. Petropulu , Steven Weber

In molecular communication (MC), combining different types of particles at the transmitter is a degree of freedom which can be utilized to improve performance. In this paper, we address the problem of pulse shaping to simplify time…

Emerging Technologies · Computer Science 2023-03-15 Wayan Wicke , Rebecca C. Felsheim , Lukas Brand , Vahid Jamali , Helene M. Loos , Andrea Buettner , Robert Schober

The paper aims at proposing the first shape identification and classification algorithm in echolocation. The approach is based on first extracting geometric features from the reflected waves and then matching them with precomputed ones…

Numerical Analysis · Computer Science 2013-08-27 Habib Ammari , Minh Phuong Tran , Han Wang

Wireless signals are commonly used for communications. Emerging applications are giving new functions to wireless signals, in which wireless sensing is the most attractive one. Channel state information (CSI) is not only the parameter for…

Signal Processing · Electrical Eng. & Systems 2021-12-22 Tongyang Xu