Hybrid Power-Line/Wireless Communication Systems For Indoor Applications

Gheth, Waled; Rabie, Khaled M.; Adebisi, Bamidele; Ijaz, Muhammad; Harris, Georgina and Alfitouri, A. (2018). Hybrid Power-Line/Wireless Communication Systems For Indoor Applications. In: 2018 11th International Symposium on Communication Systems, Networks & Digital Signal Processing (CSNDSP), 18-20 Jul 2018.

DOI: https://doi.org/10.1109/CSNDSP.2018.8471777


The high attenuation which increases as frequency increases in power line communication systems (PLC) makes achieving and sustaining high data rates over such channels a challenging task. In most communication systems, relays are normally deployed to overcome the effect of signal attenuation and to achieve reliable transmissions between users. Amplify-and-forward (AF) and decode-and-forward (DF) relays are often used. In contrast to the existing work on this topic which advocate utilizing relays either between PLC links or between wireless links, the authors of this paper focus on using AF relaying for in-home PLC and wireless systems where one PLC user wants to share data with one wireless user which has no access to the PLC network. We refer to this system as the Hybrid approach. A mathematical method is developed for this network to formulate the capacity of the system by exploiting the statistical properties of both PLC and wireless channels. Monte Carlo simulations are used throughout this paper to validate the analytical results. The impact of several system parameters is investigated in this paper. For the sake of comparison, we also provide the performance analysis and results for a PLC only network. The results showed that the performance of the hybrid system enhances as we increase the relay gain and deteriorates as the end-to-end distance increases. It is also found that the PLC only scheme may outperform the hybrid one if the relay gain is relatively small; however, the user mobility offered by the hybrid system remains the main advantage over the PLC only system.

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