Abstract
Millimeter-wave communications will play an important role in realizing the high-data rates of future 5G systems. In order to prioritize the data for different users, hierarchical modulation offers simultaneous transmission of multiple independent signals over a single electrical carrier. All-optical transmission and generation of millimeter-wave signals is a suitable solution to cope with the large number of base stations and high data rates required for future high frequency 5G networks. In this work, we have implemented an all-optical technique for the transmission and subsequent generation of hierarchically modulated millimeter-wave signals. We have compared the performance of square-shaped and star-shaped hierarchically modulated signals in terms of Bit-error-rate and power margin. It was observed that optical single sideband modulation is a suitable technique to overcome high frequency related impairments in optical fibers. Also, the high priority layer of a hierarchically modulated signal performs better than the low priority layer. Furthermore, star-shaped signal performs better than the square-shaped hierarchically modulated signal.
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Qasim, A., Ghafoor, S. (2019). Performance Analysis of Square-Shaped and Star-Shaped Hierarchically Modulated Signals Generated Using All-Optical Techniques. In: Arai, K., Bhatia, R., Kapoor, S. (eds) Intelligent Computing. CompCom 2019. Advances in Intelligent Systems and Computing, vol 998. Springer, Cham. https://doi.org/10.1007/978-3-030-22868-2_18
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DOI: https://doi.org/10.1007/978-3-030-22868-2_18
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