Performance Evaluations of Amplify-and-Forward Relaying System Over Weibull-Gamma Fading Environment

ABSTRACT

In this paper, analysis for the average bit error rate (ABER) of dual-hop systems under Weibull-gamma fading conditions is presented. Namely, the performance of dual-hop system with the channel-state information based relays for the noise- and interference-limited scenario is examined. Based on the upper bound for the end-to-end signal-to-noise ratio (SNR), the analytical expressions for the outage probability and the ABER are derived. The same performance evaluations for interference-limited environment are performed. The influence of fading and shadowing parameters, the outage threshold, the average SNR, and signal-to-interference ratio on proposed system performances is discussed.

KEYWORDS:

• Amplify-and-forward relaying strategies
• Average bit error rate
• Fading channels
• Fox H function
• Outage performance
• Shadowing

ACKNOWLEDGEMENTS

This work was supported by Ministry of Science of Republic of Serbia (grants III 44006 and TR-32052).

DISCLOSURE STATEMENT

No potential conflict of interest was reported by the authors.

Additional information

Funding

This work was supported by Ministry of Science of Republic of Serbia (grants III 44006 and TR-32052).

Notes on contributors

Aleksandra M. Cvetkovic

Aleksandra M. Cvetkovic was born in Nis, Serbia. She received BS, MS and PhD degrees in electrical engineering from the Faculty of Electronic Engineering, University of Nis, Serbia, in 2001, 2007, and 2013, respectively. She is currently working as an assistant at the Faculty of Electronic Engineering, Nis, Serbia. Her research interests include wireless communication theory, cooperative communication, and free space optical systems. Other areas of research include statistical characterization and modelling of fading channels as well as performance analysis of wireless systems in the presence of interference.

E-mail: [email protected]

Jelena A. Anastasov

Jelena A. Anastasov was born in Vranje, Serbia in 1982. She received MS and PhD degrees in electrical engineering from the Faculty of Electronic Engineering, University of Niš, Serbia, in 2006 and 2014, respectively. She is currently working as teaching assistant at the Faculty of Electronic Engineering, Telecommunications Department, Niš, Serbia. Her research interests include wireless communication theory, statistical characterization and modelling of fading channels, performance analysis of diversity combining techniques, and outage analysis of multiuser wireless systems subject to interference.