Deemah Tashman, a  postdoctoral fellow at Polytechnique Montreal and a member of Lincs lab, has published a journal paper in in the prestigious IEEE Transactions on Cognitive Communications and Networking, a journal with impressive Impact Factor of 7.4.

The Paper  titled “Maximizing Reliability in Overlay Radio Networks With Time Switching and Power Splitting Energy Harvesting”, is the result of a collaborative effort with Prof. Soumaya Cherkaoui and Prof. Walaa Hamouda. 

This research investigates the critical challenges of optimizing system reliability and enhancing energy efficiency within overlay Cognitive Radio Networks (CRNs).

The paper considered randomly dispersed secondary users (SUs) serving as relays for primary users (PUs). The key aspect is to designate of the Sus to harvest energy through the time switching-energy harvesting (EH) protocol.

Furthermore, this designated relay employs an amplify-and-forward (AF) strategy to transmit the PU’s messages, broadcasting them alongside its own signals across cascaded κ – μ fading channels.

To enhance the energy collection, both the SU and PU receivers utilize a power-splitting EH protocol for their storage devices.

In addition, the SU transmitters and the SU receiver are deployed using multiple antennas for reception and apply the maximal ratio combining approach.

In the study, the network reliability is assessed using the outage probability.

Then, an energy efficiency evaluation is performed to determine the effectiveness of EH on the system. 

Ultimately, the paper presents an optimization problem aimed at maximizing the data rate of the SUs by optimizing the time switching and power allocation parameters of the SU relay.

For more detail about the paper, visit: Maximizing Reliability in Overlay Radio Networks With Time Switching and Power Splitting Energy Harvesting | IEEE Journals & Magazine | IEEE Xplore