Zobrazeno 1 - 10
of 562
pro vyhledávání: '"Tsiftsis, Theodoros"'
Autor:
Zhu, Miaomiao, Chen, Pengxu, Yang, Liang, Boulogeorgos, Alexandros-Apostolos A., Tsiftsis, Theodoros A., Liu, Hongwu
Non-orthogonal multiple access (NOMA)-inspired integrated sensing and communication (ISAC) facilitates spectrum sharing for radar sensing and NOMA communications, whereas facing privacy and security challenges due to open wireless propagation. In thi
Externí odkaz:
http://arxiv.org/abs/2407.00579
Autor:
Miridakis, Nikolaos I., Tsiftsis, Theodoros A., Karkazis, Panagiotis A., Leligou, Helen C., Popovski, Petar
A wireless communication system is studied that operates in the presence of multiple reconfigurable intelligent surfaces (RISs). In particular, a multi-operator environment is considered where each operator utilizes an RIS to enhance its communicatio
Externí odkaz:
http://arxiv.org/abs/2403.00349
Reconfigurable intelligent surfaces (RISs) operate similarly to electromagnetic (EM) mirrors and remarkably go beyond Snell law to generate an applicable EM environment allowing for flexible adaptation and fostering sustainability in terms of economi
Externí odkaz:
http://arxiv.org/abs/2312.14548
This paper focuses on providing a theoretical framework for the evaluation of the performance of holographic reconfigurable intelligent surface (HRIS) empowered terahertz (THz) wireless systems under fog conditions. In more detail, we present a compr
Externí odkaz:
http://arxiv.org/abs/2308.12248
Autor:
Miridakis, Nikolaos I., Tsiftsis, Theodoros A., Karkazis, Panagiotis A., Leligou, Helen C., Foukalas, Fotis
Level crossing rate (LCR) is a well-known statistical tool that is related to the duration of a random stationary fading process \emph{on average}. In doing so, LCR cannot capture the behavior of \emph{extremely rare} random events. Nonetheless, the
Externí odkaz:
http://arxiv.org/abs/2307.11542
Autor:
Chen, Yingyang, Li, Yuncong, Wen, Miaowen, Zhang, Duoying, Jiao, Bingli, Ding, Zhiguo, Tsiftsis, Theodoros A., Poor, H. Vincent
Full duplex (FD) radio has attracted extensive attention due to its co-time and co-frequency transceiving capability. {However, the potential gain brought by FD radios is closely related to the management of self-interference (SI), which imposes high
Externí odkaz:
http://arxiv.org/abs/2305.01341
Autor:
Shaikh, Mohd Hamza Naim, Rabie, Khaled, Li, Xingwang, Tsiftsis, Theodoros, Nauryzbayev, Galymzhan
Vehicle-to-everything (V2X) connectivity in 5G-and-beyond communication networks supports the futuristic intelligent transportation system (ITS) by allowing vehicles to intelligently connect with everything. The advent of reconfigurable intelligent s
Externí odkaz:
http://arxiv.org/abs/2301.03983
A multiple-input multiple-output wireless communication system is analytically studied, which operates with the aid of a large-scale reconfigurable intelligent surface (LRIS). LRIS is equipped with multiple passive elements with discrete phase adjust
Externí odkaz:
http://arxiv.org/abs/2211.12794
Autor:
Feng, Jiahui, Shi, Zheng, Yang, Guanghua, Miridakis, Nikolaos I., Ma, Shaodan, Tsiftsis, Theodoros A.
As opposed to hybrid automatic repeat request with incremental redundancy (HARQ-IR) that all the resources are occupied to resend the redundant information, cross-packet HARQ (XP-HARQ) allows the introduction of new information into retransmissions t
Externí odkaz:
http://arxiv.org/abs/2209.12785
Autor:
Shi, Zheng, Wang, Hong, Fu, Yaru, Yang, Guanghua, Ma, Shaodan, Hou, Fen, Tsiftsis, Theodoros A.
To support massive connectivity and boost spectral efficiency for internet of things (IoT), a downlink scheme combining virtual multiple-input multiple-output (MIMO) and nonorthogonal multiple access (NOMA) is proposed. All the single-antenna IoT dev
Externí odkaz:
http://arxiv.org/abs/2209.11382