Abstract
Application of optimal signals allows to solve the problem of improving spectral efficiency with minimal energy losses. However, the major disadvantage of such signals is high peak-to-average power ratio (PAPR) which leads to degradation of transmitter efficiency. This work considers the possibility of using rigid amplitude limitation for random sequence of optimal signals. PAPR values distribution is presented. It is shown that amplitude limiting does not cause widening of energy spectrum defined for the level higher than –20 dB. Decreasing PAPR value by 4 dB may provide energy gain up to 3.5 dB as a result of increasing average signal power.
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Makarov, S.B., Ovsyannikova, A.S., Zavjalov, S.V., Volvenko, S.V., Zhang, L. (2018). Influence of Amplitude Limitation for Random Sequence of Single-Frequency Optimal FTN Signals on the Occupied Frequency Bandwidth and BER Performance. In: Galinina, O., Andreev, S., Balandin, S., Koucheryavy, Y. (eds) Internet of Things, Smart Spaces, and Next Generation Networks and Systems. NEW2AN ruSMART 2018 2018. Lecture Notes in Computer Science(), vol 11118. Springer, Cham. https://doi.org/10.1007/978-3-030-01168-0_17
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