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Orthogonal Time Frequency Space (OTFS) is a novel framework that processes modulation symbols via a time-independent channel characterized by the delay-Doppler domain. The conventional waveform, orthogonal frequency division multiplexing…

Signal Processing · Electrical Eng. & Systems 2021-07-20 Zhou Zhou , Lingjia Liu , Jiarui Xu , Robert Calderbank

The orthogonal time frequency space (OTFS) modulation as a promising signal representation attracts growingcinterest for integrated sensing and communication (ISAC), yet its merits over orthogonal frequency division multiplexing (OFDM)…

Signal Processing · Electrical Eng. & Systems 2023-04-28 Bowen Wang , Jianchi Zhu , Xiaoming She , Peng Chen

This letter studies information-theoretic security without knowing the eavesdropper's channel fading state. We present an alternative secrecy outage formulation to measure the probability that message transmissions fail to achieve perfect…

Information Theory · Computer Science 2016-11-17 Xiangyun Zhou , Matthew R. McKay , Behrouz Maham , Are Hjorungnes

One of the most common control decisions faced by power system operators is the question of how to dispatch generation to meet demand for power. This is a complex optimization problem that includes many nonlinear, non convex constraints as…

Optimization and Control · Mathematics 2013-06-14 Russell Bent , Daniel Bienstock , Michael Chertkov

Orthogonal time frequency space (OTFS) is a framework for communication and active sensing that processes signals in the delay-Doppler (DD) domain. This paper explores three key features of the OTFS framework, and explains their value to…

Signal Processing · Electrical Eng. & Systems 2023-02-20 Saif Khan Mohammed , Ronny Hadani , Ananthanarayanan Chockalingam , Robert Calderbank

The outage probability performance of a dual-hop amplify-and-forward selective relaying system with global relay selection is analyzed for Nakagami-$m$ fading channels in the presence of multiple interferers at both the relays and the…

Networking and Internet Architecture · Computer Science 2014-10-07 Kezhi Wang , Yunfei Chen , Marco Di Renzo

The performance of integer-forcing equalization for communication over the compound multiple-input multipleoutput channel is investigated. An upper bound on the resulting outage probability as a function of the gap to capacity has been…

Information Theory · Computer Science 2017-12-05 Elad Domanovitz , Uri Erez

This paper focuses on quantifying the outage performance of terahertz (THz) relaying systems. In this direction, novel closed-form expressions for the outage probability of a dual-hop relaying system, in which both the source-relay and…

Signal Processing · Electrical Eng. & Systems 2020-07-15 Alexandros-Apostolos A. Boulogeorgos , Angeliki Alexiou

The flexibility and reconfigurability at the radio frequency (RF) front-end offered by the fluid antenna system (FAS) make this technology promising for providing remarkable diversity gains in networks with small and constrained devices.…

This paper develops a comprehensive analytical framework for the outage probability of fluid antenna system (FAS)-aided communications by modeling the antenna as a continuous aperture and approximating the Jakes (Bessel) spatial correlation…

Signal Processing · Electrical Eng. & Systems 2026-03-24 Tuo Wu , Jianchao Zheng

Orthogonal time-frequency space (OTFS) waveform exceeds the challenges that face orthogonal frequency division multiplexing (OFDM) in the high-mobility environment with high time-frequency dispersive channels. Since practical pulse shaping…

Signal Processing · Electrical Eng. & Systems 2022-07-15 Abdelrahman Abushattal , Salah Eddine Zegrar , Ayhan Yazgan , Huseyin Arslan

The research presents the closed-form outage analysis of the newly presented $\alpha$-modification of the shadowed Beaulieu-Xie fading model for wireless communications. For the considered channel, the closed-form analytical expressions for…

Signal Processing · Electrical Eng. & Systems 2024-02-12 Aleksey S. Gvozdarev

We address a decentralized wireless communication network with a fixed number $u$ of frequency sub-bands to be shared among $N$ transmitter-receiver pairs. It is assumed that the number of users $N$ is a random variable with a given…

Information Theory · Computer Science 2009-12-01 Kamyar Moshksar , Alireza Bayesteh , Amir K. Khandani

Path planning is an important component of au- tonomous mobile sensing systems. This paper studies upper and lower bounds of communication performance over Gaussian sen- sor networks, to drive power-distortion metrics for path planning…

Information Theory · Computer Science 2016-02-23 Emrah Akyol , Urbashi Mitra

Orthogonal time frequency space (OTFS) is a promising waveform in high mobility scenarios for it fully exploits the time-frequency diversity using a discrete Fourier transform (DFT) based two dimensional spreading. However, it trades off…

Signal Processing · Electrical Eng. & Systems 2023-11-22 Pu Yuan , Jin Liu , Dajie Jiang , Fei Qin

This paper investigates multi-static position estimation in cell-free massive multiple-input multiple-output (CF mMIMO) architectures, where orthogonal time frequency space (OTFS) is used as an integrated sensing and communication (ISAC)…

Information Theory · Computer Science 2025-09-10 Yifei Fan , Shaochuan Wu , Mingjun Sun , Lin Huo , Jianchao Su , Haojie Wang

An orthogonal time sequency multiplexing (OTSM) scheme using practical signaling functions is proposed under strong phase noise (PHN) scenarios. By utilizing the transform relationships between the delay-sequency (DS), time-frequency (TF)…

Information Theory · Computer Science 2024-02-05 Zeping Sui , Hongming Zhang , Hien Quoc Ngo , Michail Matthaiou , Lajos Hanzo

Over-the-air computation (AirComp), as a data aggregation method that can improve network efficiency by exploiting the superposition characteristics of wireless channels, has received much attention recently. Meanwhile, the orthogonal time…

Information Theory · Computer Science 2024-03-27 Dongkai Zhou , Jing Guo , Siqiang Wang , Zhong Zheng , Zesong Fei , Weijie Yuan , Xinyi Wang

A spatial modulation-aided orthogonal time frequency space (SM-OTFS) scheme is proposed for high-Doppler scenarios, which relies on a low-complexity distance-based detection algorithm. We first derive the delay-Doppler (DD) domain…

Information Theory · Computer Science 2023-05-18 Zeping Sui , Hongming Zhang , Yu Xin , Tong Bao , Lie-Liang Yang , Lajos Hanzo

In this paper, we analyze the secrecy outage performance for more realistic eavesdropping scenario of free-space optical (FSO) communications, where the main and wiretap links are correlated. The FSO fading channels are modeled by the…

Information Theory · Computer Science 2021-03-17 Yun Ai , Aashish Mathur , Long Kong , Michael Cheffena