Tharaka Samarasinghe

Rank-1 Matrix Approximation-Based Channel Estimation for Intelligent Reflecting Surface-Aided Multi-User MISO Communications

S Sumanthiran, D Kudathanthirige, KT Hemachandra, T Samarasinghe, GA Baduge

Journal article  |  2021  |  IEEE Communications Letters

The acquisition of channel state information is an essential step in enabling intelligent reflecting surfaces (IRSs) for wireless ..

Physical Layer Security for Intelligent Reflecting Surface Assisted Two-Way Communications

Mevan Wijewardena, Tharaka Samarasinghe, Kasun T Hemachandra, Saman Atapattu, Jamie S Evans

Journal article  |  2021  |  IEEE COMMUNICATIONS LETTERS

This letter investigates the exploitation of an intelligent reflecting surface (IRS) to communicate securely in a two-way network ..

A Discrete-Time Markov Chain Based Comparison of the MAC Layer Performance of C-V2X Mode 4 and IEEE 802.11p

GP Wijesiri Nba, J Haapola, T Samarasinghe

Journal article  |  2021  |  IEEE Transactions on Communications

Vehicle-to-vehicle (V2V) communication plays a pivotal role in intelligent transport systems (ITS) with cellular-vehicle to everyt..

The Effect of Multiple Access Categories on the MAC Layer Performance of IEEE 802.11p

GP Wijesiri, J Haapola, T Samarasinghe

Conference Proceedings  |  2020  |  2020 IEEE Global Communications Conference, GLOBECOM 2020 - Proceedings

The enhanced distributed channel access (EDCA) mechanism enables IEEE 802.11p to accommodate differential quality of service (QoS)..

Intelligent UAV Deployment for a Disaster-Resilient Wireless Network.

Hassaan Hydher, Dushantha Nalin K Jayakody, Kasun T Hemachandra, Tharaka Samarasinghe

Journal article  |  2020  |  Sensors (Basel)

Deployment of unmanned aerial vehicles (UAVs) as aerial base stations (ABSs) has been considered to be a feasible solution to prov..

Local 5G Operator Architecture for Delay Critical Telehealth Applications

R De Silva, Y Siriwardhana, T Samarasinghe, M Ylianttila, M Liyanage

Conference Proceedings  |  2020  |  2020 IEEE 3rd 5G World Forum, 5GWF 2020 - Conference Proceedings

Network softwarization enables the novel concept of Local 5G Operator (L5GO) networks, for deploying localized 5G solutions to ser..

Device-Free User Authentication, Activity Classification and Tracking Using Passive Wi-Fi Sensing: A Deep Learning-Based Approach

V Jayasundara, H Jayasekara, T Samarasinghe, KT Hemachandra

Journal article  |  2020  |  IEEE Sensors Journal

Growing concerns over privacy invasion due to video camera based monitoring systems have made way to non-invasive Wi-Fi signal sen..

A Novel Content Caching and Delivery Scheme for Millimeter Wave Device-to-Device Communications

T Nuradha, T Samarasinghe, KT Hemachandra

Conference Proceedings  |  2019  |  International Symposium on Wireless Personal Multimedia Communications, WPMC

A novel content caching strategy is proposed for a cache enabled device-to-device (D2D) network where the user devices are allowed..

An Energy Efficient D2D Model with Guaranteed Quality of Service for Cloud Radio Access Networks

IJ Ranawaka, KT Hemachandra, T Samarasinghe, T Nuradha

Conference Proceedings  |  2019  |  International Symposium on Wireless Personal Multimedia Communications, WPMC

This paper proposes a spectrum selection scheme and a transmit power minimization scheme for a device-to-device (D2D) network cros..

A markov perspective on C-V2X Mode 4

NBAGP Wijesiri, J Haapola, T Samarasinghe

Conference Proceedings  |  2019  |  IEEE Vehicular Technology Conference

This paper proposes a multi-dimensional Markov model to evaluate the medium access control (MAC) layer performance of 3GPP cellula..