On the performance of two-way multiuser mixed RF/FSO relay networks with opportunistic scheduling & asymmetric channel gains
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AbstractIn this paper, the performance of two-way relaying (TWR) multiuser mixed radio frequency/free space optical (RF/FSO) relay networks with opportunistic user scheduling and asymmetric channel fading is studied. First, closed-form expressions for the exact outage probability, asymptotic (high signal-to-noise ration (SNR)) outage probability, and average ergodic channel capacity are derived assuming heterodyne detection (HD) scheme. Additionally, impacts of several system parameters including number of users, pointing errors, and atmospheric turbulence conditions on the overall network performance are investigated. All the theoretical results are validated by Monte-Carlo simulations. The results show that the TWR scheme almost doubles the network ergodic capacity compared to that of one-way relaying (OWR) scheme with the same outage performance. Additionally, the overall diversity order of the network is shown to be affected not only by the number of users, but it is also a function of the pointing error and atmospheric turbulence conditions.
CitationAl-Eryani YF, Salhab AM, Zummo SA, Alouini M-S (2017) On the performance of two-way multiuser mixed RF/FSO relay networks with opportunistic scheduling & asymmetric channel gains. 2017 13th International Wireless Communications and Mobile Computing Conference (IWCMC). Available: http://dx.doi.org/10.1109/IWCMC.2017.7986452.
SponsorsThis work was supported by the National Plan for Science, Technology and Innovation (Maarifah)–King Abdulaziz City for Science and Technology–through the Science & Technology Unit at the King Fahd University of Petroleum & Minerals, the Kingdom of Saudi Arabia, under Grant 15-ELE4157-04.
Conference/Event name13th IEEE International Wireless Communications and Mobile Computing Conference, IWCMC 2017