Search Results for author: Theodoros A. Tsiftsis

Found 8 papers, 0 papers with code

NeuroRIS: Neuromorphic-Inspired Metasurfaces

no code implementations22 Dec 2023 Christos G. Tsinos, Alexandros-Apostolos A. Boulogeorgos, Theodoros A. Tsiftsis

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 economic deployment and energy efficiency.

Holographic RIS Empowered THz Communications with Hardware Imperfections under Adverse Weather Conditions

no code implementations23 Aug 2023 Alexandros-Apostolos A. Boulogeorgos, Stylianos Trevlakis, Theodoros A. Tsiftsis

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.

Joint Task Offloading and Resource Allocation for IoT Edge Computing with Sequential Task Dependency

no code implementations23 Oct 2021 Xuming An, Rongfei Fan, Han Hu, Ning Zhang, Saman Atapattu, Theodoros A. Tsiftsis

To solve this challenging problem, we decompose it as a one-dimensional search of task offloading decision problem and a non-convex optimization problem with task offloading decision given.

Edge-computing

Backscatter Sensors Communication for 6G Low-powered NOMA-enabled IoT Networks under Imperfect SIC

no code implementations26 Sep 2021 Manzoor Ahmed, Wali Ullah Khan, Asim Ihsan, Xingwang Li, Jianbo Li, Theodoros A. Tsiftsis

In this paper, we introduce a BSC in multi-cell IoT network, where a source in each cell transmits superimposed signal to its associated IoT devices using NOMA.

TAG Total Energy

Joint Task Offloading and Resource Allocation for IoT Edge Computing with Sequential Task Dependency

no code implementations25 Nov 2020 Xuming An, Rongfei Fan, Han Hu, Ning Zhang, Saman Atapattu, Theodoros A. Tsiftsis

To solve this challenging problem, we decompose it as a one-dimensional search of task offloading decision problem and a non-convex optimization problem with task offloading decision given.

Edge-computing Information Theory Information Theory

Metasurface-Coated Devices: A New Paradigm for Energy-Efficient and Secure 6G Communications

no code implementations22 Jun 2020 Theodoros A. Tsiftsis, Constantinos Valagiannopoulos, Hongwu Liu, Alexandros-Apostolos A. Boulogeorgos, Nikolaos I. Miridakis

The passive metasurface-coated devices can achieve ultra-high EE and EH besides the signal detection, combined with an enhanced secrecy rate at the legitimate user and/or improved spying capabilities of the eavesdroppers under ULP transmission.

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