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In this paper, we propose a channel tracking method for massive multi-input and multi-output systems under both time-varying and spatial-varying circumstance. Exploiting the characteristics of massive antenna array, a spatial-temporal basis…

Signal Processing · Electrical Eng. & Systems 2018-03-01 Jianwei Zhao , Hongxiang Xie , Feifei Gao , Weimin Jia , Shi Jin , Hai Lin

Future wireless networks are expected to connect large-scale low-powered communication devices using the available spectrum resources. Backscatter communications (BC) is an emerging technology towards battery-free transmission in future…

Signal Processing · Electrical Eng. & Systems 2022-08-03 Wali Ullah Khan , Eva Lagunas , Asad Mahmood , Zain Ali , Symeon Chatzinotas , Björn Ottersten , Octavia A. Dobre

Most work on wireless network throughput ignores the temporal correlation inherent to wireless channels because it degrades tractability. To better model and quantify the temporal variations of wireless network throughput, this paper…

Information Theory · Computer Science 2011-04-01 Chun-Hung Liu , Jeffrey G. Andrews

The paper presents an analysis of the time reversal in multi-path Rayleigh-fading channels with $N$ inputs (transmitters) and $M$ outputs (receivers). The main issues addressed are the condition of statistical stability, the rate of…

Quantum Physics · Physics 2007-05-23 Albert Fannjiang

Temporal modulation of components of electromagnetic systems provides an exceptional opportunity to engineer the response of those systems in a desired fashion, both in the time and frequency domains. For engineering time-modulated systems,…

In time reversal acoustics experiments, a signal is emitted from a localized source, recorded at an array of receivers-transducers, time reversed, and finally re-emitted into the medium. A celebrated feature of time reversal experiments is…

Chaotic Dynamics · Physics 2007-05-23 Guillaume Bal , Leonid Ryzhik

Space-time codes leverage the availability of multiple antennas to enhance the reliability of communication over wireless channels. While space-time codes have initially been designed with a focus on open-loop systems, recent technological…

Information Theory · Computer Science 2016-11-17 Che Lin , Vasanthan Raghavan , Venu Veeravalli

Interference in wireless networks is one of the key capacity-limiting factors. Recently developed interference-embracing techniques show promising performance on turning collisions into useful transmissions. However, the…

Information Theory · Computer Science 2016-11-15 Jalaluddin Qureshi , Jianfei Cai , Chuan Heng Foh

Wireless interconnection has emerged as an energy efficient solution to the challenges of multi-hop communication over the wireline paths in conventional Networks-on-Chips (NoCs). However, to ensure the full benefits of this novel…

Networking and Internet Architecture · Computer Science 2018-09-24 Naseef Mansoor , Abhishek Vashist , M Meraj Ahmed , Md Shahriar Shamim , Syed Ashraf Mamun , Amlan Ganguly

In wireless networking R&D we typically depend on simulation and experimentation to evaluate and validate new networking solutions. While simulations allow full control over the scenario conditions, real-world experiments are influenced by…

Networking and Internet Architecture · Computer Science 2020-03-12 Renato Cruz , Helder Fontes , José Ruela , Manuel Ricardo , Rui Campos

Transmission capacity (TC) is a performance metric for wireless networks that measures the spatial intensity of successful transmissions per unit area, subject to a constraint on the permissible outage probability (where outage occurs when…

Information Theory · Computer Science 2012-01-04 Steven Weber , Jeffrey G. Andrews

Wireless on-chip communication is a promising candidate to address the performance and efficiency issues that arise when scaling current Network-on-Chip (NoC) techniques to manycore processors. A Wireless Network-on-Chip (WNoC) can serve…

Distributed, Parallel, and Cluster Computing · Computer Science 2018-06-19 Sergi Abadal , Albert Mestres , Josep Torrellas , Eduard Alarcón , Albert Cabellos-Aparicio

In this paper, a novel time-based modulation scheme is proposed in the time-asynchronous channel for diffusion-based molecular communication systems with drift. Based on this modulation scheme, we demonstrate that the sample variance of…

Information Theory · Computer Science 2019-05-31 Qingchao Li

Radio-frequency (RF) enabled wireless energy transfer (WET), as a promising solution to provide cost-effective and reliable power supplies for energy-constrained wireless networks, has drawn growing interests recently. To overcome the…

Information Theory · Computer Science 2014-12-19 Yong Zeng , Rui Zhang

In this paper we analyze the performance of time-reversal (TR) techniques in conjunction with various Ground Penetrating Radar (GPR) pre-processing methods aimed at improving detection of subsurface targets. TR techniques were first…

Geophysics · Physics 2017-10-11 Vinicius R. N. Santos , Fernando L. Teixeira

In this paper, we dynamically select the transmission rate and design wireless network coding to improve the quality of services such as delay for time critical applications. In a network coded system, with low transmission rate and hence…

Information Theory · Computer Science 2016-11-15 Xiumin Wang , Chau Yuen , Yinlong Xu

The proliferation of wireless communications networks over the past decades, combined with the scarcity of the wireless spectrum, have motivated a significant effort towards increasing the throughput of wireless networks. One of the major…

Signal Processing · Electrical Eng. & Systems 2022-06-27 Emeka Abakasanga , Nir Shlezinger , Ron Dabora

This work investigates a multi-user, multi-antenna uplink wireless system, in which multiple users transmit signals to a base station. Prior research has explored the potential for linear growth in spectral efficiency by employing multiple…

Signal Processing · Electrical Eng. & Systems 2025-06-27 Sajad Daei , Gabor Fodor , Mikael Skoglund

In this paper, we analytically study the performance of multiple-input multiple-output underwater wireless optical communication (MIMO UWOC) systems with on-off keying (OOK) modulation. To mitigate turbulence-induced fading, which is…

Information Theory · Computer Science 2016-12-20 Mohammad Vahid Jamali , Jawad A. Salehi , Farhad Akhoundi

In the Internet of Things scenarios, it is crucially important to provide low energy consumption of client devices. To address this challenge, new Wi-Fi standards introduce the Target Wake Time (TWT) mechanism. With TWT, devices transmit…

Networking and Internet Architecture · Computer Science 2020-08-07 Dmitry Bankov , Evgeny Khorov , Andrey Lyakhov , Ekaterina Stepanova