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In this paper we consider the secure transmission over the fast fading multiple antenna Gaussian broadcast channels with confidential messages (FMGBC-CM), where a multiple-antenna transmitter sends independent confidential messages to two…

Information Theory · Computer Science 2012-06-26 Pin-Hsun Lin , Chien-Li Su , Hsuan-Jung Su

This paper analyzes the convergence and generalization of training a one-hidden-layer neural network when the input features follow the Gaussian mixture model consisting of a finite number of Gaussian distributions. Assuming the labels are…

Machine Learning · Computer Science 2023-01-30 Hongkang Li , Shuai Zhang , Meng Wang

The broadcast channel with confidential messages is a well studied scenario from the theoretical standpoint, but there is still lack of practical schemes able to achieve some fixed level of reliability and security over such a channel. In…

Information Theory · Computer Science 2016-11-17 Marco Baldi , Nicola Maturo , Giacomo Ricciutelli , Franco Chiaraluce

We investigate estimation of fluctuating channels and its effect on security of continuous-variable quantum key distribution. We propose a novel estimation scheme which is based on the clusterization of the estimated transmittance data. We…

An information-theoretic confidential communication is achievable if the eavesdropper has a degraded channel compared to the legitimate receiver. In wireless channels, beamforming and artificial noise can enable such confidentiality.…

Information Theory · Computer Science 2023-12-25 Stefan Roth , Aydin Sezgin

We propose a new four-parameter distribution for modeling synthetic aperture radar (SAR) imagery named the gamma generalized normal (GGN) by combining the gamma and generalized normal distributions. A mathematical characterization of the…

Methodology · Statistics 2022-06-07 G. M. Cordeiro , R. J. Cintra , L. C. Rêgo , A. D. C. Nascimento

This paper investigates the characteristics of energy detection (ED) over composite $\kappa$-$\mu$ shadowed fading channels in ultra machine-type communication (mMTC) networks. We have derived the closed-form expressions of the probability…

Signal Processing · Electrical Eng. & Systems 2025-09-01 He Huang , Zeping Sui , Zilong Liu , Wei Huang , Md. Noor-A-Rahim , Haishi Wang , Zhiheng Hu

This paper presents a new joint radar and communication technique based on the classical stepped frequency radar waveform. The randomization in the waveform, which is achieved by using permutations of the sequence of frequency tones, is…

Information Theory · Computer Science 2021-10-26 Rajitha Senanayake , Peter Smith , Tian Han , Jamie Evans , William Moran , Robin Evans

Secrecy capacity of a multiple-antenna wiretap channel is studied in the low signal-to-noise ratio (SNR) regime. Expressions for the first and second derivatives of the secrecy capacity with respect to SNR at SNR = 0 are derived.…

Information Theory · Computer Science 2009-10-22 Mustafa Cenk Gursoy

Learning from data owned by several parties, as in federated learning, raises challenges regarding the privacy guarantees provided to participants and the correctness of the computation in the presence of malicious parties. We tackle these…

Cryptography and Security · Computer Science 2022-10-31 César Sabater , Aurélien Bellet , Jan Ramon

We analyze the performance of multiple input/multiple output (MIMO) communications systems employing spatial multiplexing and zero-forcing detection (ZF). The distribution of the ZF signal-to-noise ratio (SNR) is characterized when either…

Information Theory · Computer Science 2014-01-03 Constantin Siriteanu , Steven Blostein , Akimichi Takemura , Hyundong Shin , Shahram Yousefi , Satoshi Kuriki

The practical implementation difficulties arising from the Gaussian modulation of the GG02 protocol lead us to investigate the possibilities offered by the combination of probabilistic amplitude shaping technique and quadrature amplitude…

Neural networks and other machine learning models compute continuous representations, while humans communicate with discrete symbols. Reconciling these two forms of communication is desirable to generate human-readable interpretations or to…

Machine Learning · Computer Science 2021-04-05 André F. T. Martins

Dual-functional radar communication (DFRC) system has recently attracted significant academic attentions as an enabling solution for realizing radar-communication spectrum sharing. During the DFRC transmission, however, the critical…

Signal Processing · Electrical Eng. & Systems 2019-09-11 Nanchi Su , Fan Liu , Christos Masouros

A continuous-aperture array (CAPA)-based secure transmission framework is proposed to enhance physical layer security. Continuous current distributions, or beamformers, are designed to maximize the secrecy transmission rate under a power…

Information Theory · Computer Science 2026-04-03 Boqun Zhao , Chongjun Ouyang , Xingqi Zhang , Yuanwei Liu

Free-space optics (FSO)-based satellite communication systems have recently received considerable attention due to their enhanced capacity compared to their radio frequency (RF) counterparts. This paper analyzes the performance of physical…

Information Theory · Computer Science 2024-02-22 Thang V. Nguyen , Thanh V. Pham , Anh T. Pham , Dang T. Ngoc

Approximate Symbol error rate (SER), outage probability and rate expressions are derived for receive diversity system employing optimum combining when both the desired and the interfering signals are subjected to Rician fading, for the…

Signal Processing · Electrical Eng. & Systems 2019-05-10 Muralikrishnan Srinivasan , Sheetal Kalyani

In a large-scale wireless ad hoc network in which all transmitters form a homogeneous of Poisson point process, the statistics of the signal-to-interference ratio (SIR) in prior work is only derived in closed-form for the case of Rayleigh…

Information Theory · Computer Science 2015-05-27 Chun-Hung Liu

In this paper, the fading broadcast channel with confidential messages is studied in the presence of statistical quality of service (QoS) constraints in the form of limitations on the buffer length. We employ the effective capacity…

Information Theory · Computer Science 2010-04-07 Deli Qiao , Mustafa Cenk Gursoy , Senem Velipasalar

In this paper we establish a general first-order statistical framework for the detection of a common signal impinging on spatially distributed receivers. We consider three types of channel models: 1) the propagation channel is completely…

Signal Processing · Electrical Eng. & Systems 2023-02-15 Todd McWhorter , Louis Scharf , Margaret Cheney