Tootfinder

Abendlicher Frieden über den Feldern der #wattpampa.

Compressive Near-Field Wideband Channel Estimation for THz Extremely Large-scale MIMO Systems
Jionghui Wang, Hongwei Wang, Jun Fang, Lingxiang Li, Zhi Chen
https://arxiv.org/abs/2507.22727

Compressive Near-Field Wideband Channel Estimation for THz Extremely Large-scale MIMO Systems
We consider the channel acquisition problem for a wideband terahertz (THz) communication system, where an extremely large-scale array is deployed to mitigate severe path attenuation. In channel modeling, we account for both the near-field spherical wavefront and the wideband beam-splitting phenomena, resulting in a wideband near-field channel. We propose a frequency-independent orthogonal dictionary that generalizes the standard discrete Fourier transform (DFT) matrix by introducing an addition…

Die #wattpampa treibt es gerade bunt. 🌈

Wideband Coverage Enhancement for IRS-Aided Wireless Networks Based on Power Measurement
Ge Yan, Lipeng Zhu, He Sun, Rui Zhang
https://arxiv.org/abs/2506.23750

Wideband Coverage Enhancement for IRS-Aided Wireless Networks Based on Power Measurement
By applying tunable phase shifts to incident waves via passive signal reflection, intelligent reflecting surface (IRS) can offer significant performance improvement for wireless communication systems. To reap such performance gain, channel knowledge for IRS-cascaded links is generally required, which is practically challenging to acquire due to their high-dimensional and time-varying characteristics. Conventional pilot-based channel estimation incurs excessive overhead due to the large number o…

A Flexible Design for Beam Squint Effect Suppression in IRS-Aided THz Communications
Yanze Zhu, Qingqing Wu, Wen Chen, Yang Liu, Ruiqi Liu
https://arxiv.org/abs/2508.21295 https…

A Flexible Design for Beam Squint Effect Suppression in IRS-Aided THz Communications
In this paper, we study employing movable components on both base station (BS) and intelligent reflecting surface (IRS) in a wideband terahertz (THz) multiple-input-single-output (MISO) system, where the BS is equipped with a movable antenna (MA) array and the IRS consists of movable subarrays. To alleviate double beam squint effect caused by the coupling of beam squint at the BS and IRS, we propose to maximize the minimal received power across a wide THz spectrum by delicately configuring the …

Optimizing information transmission in the canonical Wnt pathway
Olivier Witteveen, Samuel J. Rosen, Ryan S. Lach, Maxwell Z. Wilson, Marianne Bauer
https://arxiv.org/abs/2506.22633

Optimizing information transmission in the canonical Wnt pathway
Populations of cells regulate gene expression in response to external signals, but their ability to make reliable collective decisions is limited by both intrinsic noise in molecular signaling and variability between individual cells. In this work, we use optogenetic control of the canonical Wnt pathway as an example to study how reliably information about an external signal is transmitted to a population of cells, and determine an optimal encoding strategy to maximize information transmission …

Weekend #Plankton Factoid 🦠🦐
While algal #blooms are often associated with summer, they can occur in any season. SE #Australia is experiencing a prolonged bloom of Karenia mikimotoi (same genus as Flor…

A Solution of Ultra Wideband Based High-resolution and Lossless Audio Transmission
Fengyun Zhang
https://arxiv.org/abs/2508.20782 https://arxiv.org/pdf/250…

A Solution of Ultra Wideband Based High-resolution and Lossless Audio Transmission
This paper provides an overview of the current challenges in wireless audio transmission and highlights the limitations of existing technologies regarding data bandwidth, data compression, latency, and inter-device compatibility. To address these shortcomings, it proposes a high-resolution, lossless audio transmission scheme utilizing ultra wideband (UWB) technology. UWB emerges as a promising solution by offering the necessary bandwidth to enable exceptional sound quality with ultra-low latenc…

Hab schon interessante Nachbarschaft hier in der #wattpampa. 🤩

Wie ich da so in meinem Deichdorf in der Wattpampa hock und mir manchmal erst wieder klar machen muss wie wenig normal und selbstverständlich das alles so gelaufen ist.