Dual-hop communications over PLC/η-μ and PLC/λ-μ fading channels

• Published in: International journal of electronics Vol. 110; no. 12; pp. 2317 - 2339
• Main Author: Bilim, Mehmet
• Format: Journal Article
• Language: English
• Published: Abingdon Taylor & Francis 02.12.2023; Taylor & Francis LLC
• Subjects: Channel capacity; Closed form solutions; Comparative studies; Dual-hop; error rate; Exact solutions; Keying; power line communication; Power lines; Probability density functions; Quadrature amplitude modulation; Signal to noise ratio
• ISSN: 0020-7217; 1362-3060
• DOI: 10.1080/00207217.2022.2145502

In this study, the performance analysis of dual-hop power line communication (PLC)/ and PLC/ L-branch systems by using the decode-and-forward (DF) protocol is presented in detail. The introduced work provides novel closed-form expressions of the probability density function (PDF) of the instantaneous signal-to-noise ratio (SNR) of the considered systems. Taking the proposed PDFs into account, we also derive closed-form expressions of the error rate and channel capacity (CC) performance for the dual-hop PLC/ and PLC/ L-branch DF systems. Furthermore, an exhaustive comparative study of different modulation types such as non-coherent M-ary frequency-shift keying, square quadrature amplitude modulation (SQAM), and cross quadrature amplitude modulation (×QAM) is presented by using the proposed closed-form error rate expressions. Also, the exact expressions for the CC with channel inversion with a fixed-rate (CIFR) transmission policy are proposed. Finally, all the theoretical findings are confirmed through numerical results obtained by using the exact expressions.