Age of Information Analysis for Full Duplex Cooperative SWIPT NOMA System

Abstract

This paper presents a performance analysis of the Age of Information (<tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$A$</tex>oI) in full-duplex (FD) cooperative (C) non-orthogonal multiple access (NOMA) integrated with simultaneous wireless information and power transfer (FD-C-SWIPT-NOMA). Particularly, approximated closed-form expressions for the average block error rate (BLER) are derived for the proposed scheme and validated by Monte Carlo simulations. Based on the derived expressions of the average BLER, the expected weighted sum of AoI (EWSAoI) is obtained for the proposed scheme. Additionally, the proposed scheme is compared with other baseline schemes such as orthogonal multiple access (OMA), NOMA, and half duplex (HD) cooperative SWIPT NOMA schemes in terms of EWSAoI. Finally, the effect of variable power allocation, distances, and residual self-interference (RSI) on the AoI is analysed and simulation results demonstrate the superiority of the proposed scheme compared to baseline schemes in terms of the EWSAoI.