Zobrazeno 1 - 10
of 9 516
pro vyhledávání: '"Alexiou AT"'
Future wireless connectivity is envisioned to accommodate functionalities far beyond broadband data transmission over point-to-point direct links, enabling novel scenarios, such as communication behind blockers and around corners, and innovative conc
Externí odkaz:
http://arxiv.org/abs/2410.08099
Localization is expected to play a significant role in future wireless networks as positioning and situational awareness, navigation and tracking, are integral parts of 6G usage scenarios. Nevertheless, in many cases localization requires extra equip
Externí odkaz:
http://arxiv.org/abs/2410.00534
Spatial division multiple access (SDMA), a powerful method routinely applied in multi-user multiple-input multiple-output (MIMO) communications, relies on the angular orthogonality of beams in the far field, to distinguish multiple users at different
Externí odkaz:
http://arxiv.org/abs/2408.13190
The design of Reconfigurable Intelligent Surfaces (RISs) is typically based on treating the RIS as an infinitely large surface that steers incident plane waves toward the desired direction. In practical implementations, however, the RIS has finite si
Externí odkaz:
http://arxiv.org/abs/2408.12205
Autor:
Sahabandu, Dinuka, Ramasubramanian, Bhaskar, Alexiou, Michail, Mertoguno, J. Sukarno, Bushnell, Linda, Poovendran, Radha
This paper introduces a novel reinforcement learning (RL) strategy designed to facilitate rapid autonomy transfer by utilizing pre-trained critic value functions from multiple environments. Unlike traditional methods that require extensive retraining
Externí odkaz:
http://arxiv.org/abs/2407.20466
Wireless communications are nowadays shifting to higher operation frequencies with the aim to meet the ever-increasing demand for bandwidth. While reconfigurable intelligent surfaces (RISs) are usually envisioned to restore the line-of-sight of block
Externí odkaz:
http://arxiv.org/abs/2312.01009
A computationally-simplified and descriptor-richer Point Cloud Quality Assessment (PCQA) metric, namely PointPCA+, is proposed in this paper, which is an extension of PointPCA. PointPCA proposed a set of perceptually-relevant descriptors based on PCA
Externí odkaz:
http://arxiv.org/abs/2311.13880
In this paper, we investigate the physical layer security capabilities of reconfigurable intelligent surface (RIS) empowered wireless systems. In more detail, we consider a general system model, in which the links between the transmitter (TX) and the
Externí odkaz:
http://arxiv.org/abs/2308.09906
Autor:
Saikat Dewanjee, Hiranmoy Bhattacharya, Chiranjib Bhattacharyya, Pratik Chakraborty, Joshua Fleishman, Athanasios Alexiou, Marios Papadakis, Saurabh Kumar Jha
Publikováno v:
Cell Communication and Signaling, Vol 22, Iss 1, Pp 1-31 (2024)
Abstract Brain cancer is regarded as one of the most life-threatening forms of cancer worldwide. Oxidative stress acts to derange normal brain homeostasis, thus is involved in carcinogenesis in brain. The Nrf2/Keap1/ARE pathway is an important signal
Externí odkaz:
https://doaj.org/article/e5da10cebf6544a29b41758fc50aef70
Autor:
Adele Mazzoleni, Wireko Andrew Awuah, Vivek Sanker, Hareesha Rishab Bharadwaj, Nicholas Aderinto, Joecelyn Kirani Tan, Helen Ye Rim Huang, Jeisun Poornaselvan, Muhammad Hamza Shah, Oday Atallah, Aya Tawfik, Mohamed Elsayed Abdelmeguid Elsayed Elmanzalawi, Sama Hesham Ghozlan, Toufik Abdul-Rahman, Jeremiah Adepoju Moyondafoluwa, Athanasios Alexiou, Marios Papadakis
Publikováno v:
European Journal of Medical Research, Vol 29, Iss 1, Pp 1-17 (2024)
Abstract Chromosomal instability (CIN) is a pivotal factor in gliomas, contributing to their complexity, progression, and therapeutic challenges. CIN, characterized by frequent genomic alterations during mitosis, leads to genetic abnormalities and im
Externí odkaz:
https://doaj.org/article/eff363418b3044ef979f8e28482b739b