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Semantic communications for image-based sign language transmission

September 1, 2023
by admin Journals

This paper introduces a semantic communications architecture that is focused on the transmission of american sign language (ASL). Initially, a novel system model for image-based semantic communications is presented, which utilizes a variant of the q ...

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

September 1, 2023
by admin Journals

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 comp ...

Can graph neural network-based detection mitigate the impact of hardware imperfections?

August 10, 2023
by admin Conferences

Until recently, researchers used machine learning methods to compensate for hardware imperfections at the symbol level, indicating that optimum radio-frequency transceiver performance is possible. Nevertheless, such approaches neglect the error corr ...

Localization as a key enabler of 6G wireless systems: A comprehensive survey and an outlook

January 1, 2023
by admin Journals

When fully implemented, sixth generation (6G) wireless systems will constitute intelligent wireless networks that enable not only ubiquitous communication but also high-accuracy localization services. They will be the driving force behind this trans ...

Hearing Restoration through Optical Wireless Cochlear Implants

April 1, 2022
by admin Chapters

In this chapter, we present two novel optical wireless-based cochlear implant architectures: (i) optical wireless cochlear implant (OWCI) and (ii) all-optical cochlear implant (AOCI). Both the architectures aim to decisively improve the reliability ...

Channel Modeling for In-body Optical Wireless Communications

February 1, 2022
by admin Journals

Next generation in-to-out-of body biomedical applications have adopted optical wireless communications (OWCs). However, by delving into the published literature, a gap is recognised in modeling the in-to-out-of channel, since most published contribu ...

Analysis and optimization of communications in biomedical systems

February 1, 2022
by admin Monographs

Medical implants (MIs) have been advocated as an effective-solution to numerous health-issues. Conventional MIs exploit near-field magnetic communication technologies and typically operate in low-RF frequencies, from 5 to 49 MHz, while their transmi ...

On the symmetric and skew-symmetric K-distributions

July 1, 2021
by admin Journals

This paper introduces the four-parameter symmetric K-distribution (SKD) and the skew-SKD as models for describing the complex dynamics of machine learning, Bayesian analysis and other fields through simplified expressions with high accuracy. Formula ...

Pathloss modeling for in-body optical wireless communications

July 1, 2021
by admin Conferences

Optical wireless communications (OWCs) have been recognized as a candidate enabler of next generation in-body nano-scale networks and implants. The development of an accurate channel model capable of accommodating the particularities of different ty ...

Machine Learning in Nano-Scale Biomedical Engineering

March 1, 2021
by admin Journals

Machine learning (ML) empowers biomedical systems with the capability to optimize their performance through modeling of the available data extremely well, without using strong assumptions about the modeled system. Especially in nano-scale biosystems ...

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