Power Beacon and NOMA-Assisted Cooperative IoT Networks with Co-Channel Interference: Performance Analysis and Deep Learning Evaluation

Anh Tu Le, Dinh Hieu Tran, Chi Bao Le, Phu Tran Tin, Tan N. Nguyen, Zhiguo Ding, H. Vincent Poor, Miroslav Voznak

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

This study investigates a two-way relaying non-orthogonal multiple access (TWR-NOMA) enabled Internet-of-Things (IoT) network, in which two NOMA users communicate via an IoT access point (IAP) relay using a decode-and-forward (DF) protocol. A power beacon (PB) is used to power the IAP to address the IAP's limited lifetime due to energy constraints. Since co-channel interference (CCI) is inevitable in IoT systems, this effect is also studied in the proposed system to improve practicality. Based on the proposed system model, the closed-form equations for the exact and asymptotic outage probability (OP) and ergodic data (ED) of the NOMA users' signals are first derived to describe the performance of TWR-NOMA systems. The system's diversity order and throughput are then evaluated according to the derived results. To further improve the system's performance, a low-complexity strategy 2D golden section search (GSS) is performed, subject to power allocation (PA) and time-switching (TS) factors, to optimize the outage performance. Finally, a deep learning design with minimal computing complexity and precision OP prediction is established for a real-time IoT network configuration. The numerical results are discussed and analyzed in terms of the effects of the CCI, the TS ratio, the PA factor, the fading parameter on the OP, system throughput, and ED.

Original languageEnglish (US)
Pages (from-to)7270-7283
Number of pages14
JournalIEEE Transactions on Mobile Computing
Volume23
Issue number6
DOIs
StatePublished - Jun 1 2024
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Software
  • Electrical and Electronic Engineering
  • Computer Networks and Communications

Keywords

  • Co-channel interference
  • Internet of Things
  • deep neural network
  • energy harvesting
  • non-orthogonal multiple access
  • power beacon
  • two-way relay
  • wireless power transfer

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