Abstract
Due to its ability to transmit a high rate data stream with maintaining robustness against multipath fading, high spectrum efficiency and efficient implementation, OFDM has been widely used in various communications systems such as DVB, WIFI and WIMAX. It is also considered as a candidate for the air interface of the current and future high speed mobile communications standards such as LTE, LTE advanced. It is also very appropriate for multi-band cognitive radio systems. However, OFDM suffers from some drawbacks. One of them is the Out of Band (OOB) leakage due to high spectral sidelobe which produces interference in neighboring bands and then degrade the system performance. Several schemes have been proposed to reduce the OOB emission such as filtering, windowing and precoding etc. in this paper, a hybrid approach based on two different precoding techniques is proposed to optimize this reduction. Simulation results verified the advantages of this scheme as compared with other well known techniques.
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Sofi, N., Debbat, F., Bendimerad, F.T. (2019). On the Out of Band Emission Reduction for Orthogonal Frequency Division Multiplexing Based Systems. In: Farhaoui, Y., Moussaid, L. (eds) Big Data and Smart Digital Environment. ICBDSDE 2018. Studies in Big Data, vol 53. Springer, Cham. https://doi.org/10.1007/978-3-030-12048-1_19
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DOI: https://doi.org/10.1007/978-3-030-12048-1_19
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