Impact of peak to average power ratio reduction techniques on Generalized Frequency Division Multiplexing for 5th generation systems

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Output type: Journal article

UM6P affiliated Publication?: Yes

Author list: Kumar P., Kansal L., Gaba G.S., Mounir M., Sharma A., Singh P.K.

Publisher: Elsevier

Publication year: 2021

Journal: Computers and Electrical Engineering (0045-7906)

Volume number: 95

ISSN: 0045-7906


Languages: English (EN-GB)

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Generalized Frequency Division Multiplexing (GFDM) is the advanced multi-carrier methodology proposed for a reliable operation of the 5th generation (5G) systems. It has been observed that the performance of GFDM is hampered by the elevated peak to power ratio (PAPR). High PAPR leads to the saturation of the transmit power amplifier which degrades the bit error rate (BER) and causes the out of band emissions. The prime objective of this work is to evaluate the PAPR performances of GFDM under the various reduction schemes like precoding, clipping, companding, precoding + clipping and precoding + companding. The results show that the precoding techniques combined with clipping or companding results in less PAPR and BER as compared to the conventional GFDM. The discrete cosine transform (DCT) and discrete sine transform (DST) precoded GFDM provides a signal to noise (SNR) improvement of 2−4 dB and 5−8 dB respectively, in comparison to conventional GFDM systems for a BER of 10−3. © 2021


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Last updated on 2021-21-11 at 23:22