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We study the performance of a selection combining (SC) receiver operating over independent but non-identically distributed log-logistic ($\mathcal{LL})$ fading channels. We first characterize the statistics of the output instantaneous…

Information Theory · Computer Science 2023-06-06 Yazan H. Al-Badarneh , Mustafa K. Alshawaqfeh , Osamah S. Badarneh

A scenario involving a source, a channel, and a destination, where the destination is interested in {\em both} reliably reconstructing the message transmitted by the source and estimating with a fidelity criterion the state of the channel,…

Information Theory · Computer Science 2011-08-30 Wenyi Zhang , Satish Vedantam , Urbashi Mitra

We investigate a spectrum-sharing system with non-severely faded mutual interference links, where both the secondary-to-primary and primary-to-secondary channels have a Line-of-Sight (LoS) component. Based on a Rician model for the LoS…

Information Theory · Computer Science 2014-04-01 Ahmed M. Alaa , Mahmoud H. Ismail , Hazim Tawfik

Energy detection is a reliable non-coherent signal processing technology of spectrum sensing of cognitive radio networks, which thanks to its low complexity, no requirement of priori received information and fast sensing ability etc. Since…

Information Theory · Computer Science 2018-06-14 He Huang

The capacity of a discrete-time model of optical fiber described by the split-step Fourier method (SSFM) as a function of the signal-to-noise ratio $\text{SNR}$ and the number of segments in distance $K$ is considered. It is shown that if…

Information Theory · Computer Science 2021-09-28 Milad Sefidgaran , Mansoor Yousefi

The recent advancements in autonomous and remote operation of maritime vessels necessitates the development of robust and reliable communication systems to support high-bandwidth applications such as real-time monitoring, navigation, and…

Systems and Control · Electrical Eng. & Systems 2025-11-12 Antoine Thibault Vié , Roberto Galeazzi , Dimitrios Papagergiou

A general second order attenuation (SOA) model is proposed to predict the elastic wave attenuation and phase velocity dispersion in heterogeneous polycrystalline media. It is valid for statistically isotropic aggregates with triclinic…

Computational Physics · Physics 2018-06-15 Gaofeng Sha

The high-SNR capacity of the noncoherent MIMO channel has been derived for the case of independent and identically distributed (IID) Rayleigh block fading by exploiting the Gaussianity of the channel matrix. This implies the optimal degrees…

Information Theory · Computer Science 2021-01-12 Khac-Hoang Ngo , Sheng Yang , Maxime Guillaud

This paper presents a new derivation of LEO-to-ground receiver channel model to address a clear gap in the prior art: the lack of an appropriate geometry aware characterization of non LOS (NLOS) link model represented by the power spectral…

Signal Processing · Electrical Eng. & Systems 2025-10-29 Kuan-Po Chiu , Sumit Roy

Elastic waves that propagate in polycrystalline materials attenuate due to scattering of energy out of the primary propagation direction in addition to becoming dispersive in their group and phase velocities. Attenuation and dispersion are…

Materials Science · Physics 2025-05-13 Anubhav Roy , Christopher M. Kube

We consider large-scale fading precoding (LSFP), which is a two-layer precoding scheme in the downlink of multi-cell massive MIMO (multiple-input multiple-output) systems to suppress inter-cell interference. We obtain the closed-form…

Information Theory · Computer Science 2020-06-26 Özlem Tuğfe Demir , Emil Björnson

The fluctuating two-ray (FTR) fading model provides a much better fit than other fading models for small-scale fading measurements in millimeter wave communications. In this paper, using a mixture of gamma distributions, new exact…

Information Theory · Computer Science 2017-10-26 Jiayi Zhang , Wen Zeng , Xu Li , Qiang Sun , Kostas P. Peppas

In this two part paper we consider a wireless network in which a source terminal communicates with a destination and a relay terminal is occasionally present in close proximity to the source without source's knowledge, suggesting oblivious…

Information Theory · Computer Science 2010-07-27 Evgeniy Braginskiy , Avi Steiner , Shlomo Shamai

We consider spatially-constrained apertures of rectangular symmetry and aim to retrieve the limit to the average number of spatial degrees of freedom (DoF), obtained elsewhere through different analyses and tools. Unlike prior works, we use…

Information Theory · Computer Science 2020-02-28 Andrea Pizzo , Thomas L. Marzetta , Luca Sanguinetti

The mutual information of a discrete time memoryless Rayleigh fading channel is considered, where neither the transmitter nor the receiver has the knowledge of the channel state information except the fading statistics. We present the…

Information Theory · Computer Science 2007-07-13 Rasika Perera , Tony Pollock , Thushara Abhayapala

The new method proposed in this work not only measures the particle size distribution and the average molar mass accurately using the static light scattering (SLS) technique when the Rayleigh-Gans-Debye approximation is valid for dilute…

Chemical Physics · Physics 2007-05-23 Yong Sun

We investigate the performance of a dual-hop intervehicular communications (IVC) system with relay selection strategy. We assume a generalized fading channel model, known as cascaded Rayleigh (also called n*Rayleigh), which involves the…

Information Theory · Computer Science 2021-01-06 Yahia Alghorani , Ahmed Salim Chekkouri , Djabir Abdeldjalil Chekired , Samuel Pierre

The effect of coordination on transport is investigated theoretically using random networks of springs as model systems. An effective medium approximation is made to compute the density of states of the vibrational modes, their energy…

Soft Condensed Matter · Physics 2015-05-14 Matthieu Wyart

Future mobile ad hoc networks will share spectrum between many users. Channels will be assigned on the fly to guarantee signal and interference power requirements for requested links. Channel losses must be re-estimated between many pairs…

Signal Processing · Electrical Eng. & Systems 2023-10-20 Jie Wang , Meles G. Weldegebriel , Neal Patwari

Scattering through natural porous formations (by far the most ubiquitous example of disordered media) represents a formidable tool to identify effective flow and transport properties. In particular, we are interested here in the scattering…

Soft Condensed Matter · Physics 2023-05-16 Gerardo Severino , Francesco Giannino
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