Zobrazeno 1 - 10
of 12 559
pro vyhledávání: '"A. Farhang"'
Delay-Doppler (DD) signal processing has emerged as a powerful tool for analyzing multipath and time-varying channel effects. Due to the inherent sparsity of the wireless channel in the DD domain, compressed sensing (CS) based techniques, such as ort
Externí odkaz:
http://arxiv.org/abs/2412.01498
Nowadays, inter-vehicle networks are a viable communication scenario that greatly contributes to daily work, and its issues are gaining more and more attention every day. These days, space networks are growing and developing. There are numerous new u
Externí odkaz:
http://arxiv.org/abs/2411.19002
A study of interference caused by incumbent radios to UWB devices is presented. Through an extensive set of measured spectral activities in the low-band IEEE802.15.4 UWB operating channels, we explore the outage probabilities of a UWB system when it
Externí odkaz:
http://arxiv.org/abs/2411.07052
Recently, filter-bank multicarrier spread spectrum (FBMC-SS) has been proposed as a candidate waveform for ultra-wideband (UWB) communications. It has been noted that FBMC-SS is a perfect match to this application, leading to a trivial method of matc
Externí odkaz:
http://arxiv.org/abs/2411.05989
Autor:
Loran, Farhang, Mostafazadeh, Ali
The transfer matrix of scattering theory in one dimension can be expressed in terms of the time-evolution operator for an effective non-unitary quantum system. In particular, it admits a Dyson series expansion which turns out to facilitate the constr
Externí odkaz:
http://arxiv.org/abs/2410.16906
Orthogonal time frequency space modulation (OTFS) is currently one of the most robust modulation techniques for high Doppler channels. However, to reap the benefits of OTFS, an accurate channel estimation is crucial. To this mean, the widely used emb
Externí odkaz:
http://arxiv.org/abs/2410.11739
Deep learning models excel at capturing complex representations through sequential layers of linear and non-linear transformations, yet their inherent black-box nature and multi-modal training landscape raise critical concerns about reliability, robu
Externí odkaz:
http://arxiv.org/abs/2410.10984
In this paper, we propose time and frequency synchronization techniques for the uplink of multiuser OTFS (MU-OTFS) in high-mobility scenarios. We introduce a spectrally efficient and practical pilot pattern where each user utilizes a pilot with a cyc
Externí odkaz:
http://arxiv.org/abs/2410.10740
Acquiring new customers is a vital process for growing businesses. Prospecting is the process of identifying and marketing to potential customers using methods ranging from online digital advertising, linear television, out of home, and direct mail.
Externí odkaz:
http://arxiv.org/abs/2410.01157
In this paper, we propose a network architecture where two types of aerial infrastructures together with a ground station provide connectivity to a remote area. A high altitude platform station (HAPS) is equipped with reconfigurable intelligent surfa
Externí odkaz:
http://arxiv.org/abs/2409.17817