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    Performance Analysis of RF-FSO Multi-Hop Networks

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    Type
    Conference Paper
    Authors
    Makki, Behrooz cc
    Svensson, Tommy
    Brandt-Pearce, Maite
    Alouini, Mohamed-Slim cc
    KAUST Department
    Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
    Electrical Engineering Program
    Date
    2017-05-12
    Online Publication Date
    2017-05-12
    Print Publication Date
    2017-03
    Permanent link to this record
    http://hdl.handle.net/10754/625108
    
    Metadata
    Show full item record
    Abstract
    We study the performance of multi-hop networks composed of millimeter wave (MMW)-based radio frequency (RF) and free-space optical (FSO) links. The results are obtained in the cases with and without hybrid automatic repeat request (HARQ). Taking the MMW characteristics of the RF links into account, we derive closed-form expressions for the network outage probability. We also evaluate the effect of various parameters such as power amplifiers efficiency, number of antennas as well as different coherence times of the RF and the FSO links on the system performance. Finally, we present mappings between the performance of RF- FSO multi-hop networks and the ones using only the RF- or the FSO-based communication, in the sense that with appropriate parameter settings the same outage probability is achieved in these setups. The results show the efficiency of the RF-FSO setups in different conditions. Moreover, the HARQ can effectively improve the outage probability/energy efficiency, and compensate the effect of hardware impairments in RF-FSO networks. For common parameter settings of the RF-FSO dual- hop networks, outage probability 10^{-4} and code rate 3 nats-per-channel-use, the implementation of HARQ with a maximum of 2 and 3 retransmissions reduces the required power, compared to the cases with no HARQ, by 13 and 17 dB, respectively.
    Citation
    Makki B, Svensson T, Brandt-Pearce M, Alouini M-S (2017) Performance Analysis of RF-FSO Multi-Hop Networks. 2017 IEEE Wireless Communications and Networking Conference (WCNC). Available: http://dx.doi.org/10.1109/WCNC.2017.7925522.
    Sponsors
    The research leading to these results received funding from the European Commission H2020 programme under grant agreement n_o671650 (5G PPP mmMAGIC project), and from the Swedish Governmental Agency for Innovation Systems (VINNOVA) within the VINN Excellence Center Chase.
    Publisher
    Institute of Electrical and Electronics Engineers (IEEE)
    Journal
    2017 IEEE Wireless Communications and Networking Conference (WCNC)
    Conference/Event name
    2017 IEEE Wireless Communications and Networking Conference, WCNC 2017
    DOI
    10.1109/WCNC.2017.7925522
    arXiv
    1703.07166
    Additional Links
    http://ieeexplore.ieee.org/document/7925522/
    ae974a485f413a2113503eed53cd6c53
    10.1109/WCNC.2017.7925522
    Scopus Count
    Collections
    Conference Papers; Electrical and Computer Engineering Program; Computer, Electrical and Mathematical Science and Engineering (CEMSE) Division

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