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A Method to Reduce the Effect of Inter-Sub-band Interference (ISBI) and Inter Carrier Interference (ICI) in UFMC

  • Rajarao MandaEmail author
  • R. Gowri
Conference paper
Part of the Advances in Intelligent Systems and Computing book series (AISC, volume 989)

Abstract

To support frequency segmentation and multi-service applications in fifth-generation wireless communications, the universal filtered multi-carrier (UFMC) modulation scheme is chosen and approved by worldwide mobile and wireless communication groups. However, the performance of UFMC-based systems mainly depends on the sub-band filter response, which influences the interference due to sub-bands and adjacent sub-carriers. The conventional UFMC uses the length of cyclic prefix/channel length as sub-band filter length, irrespective of the sub-band size. It may result in more number of computations to determine the filter response and hence introduces delay on the transmitter side. In addition, the filter tails extend to the one or many numbers of adjacent sub-bands in case of short sub-band sizes turns in performance degradation. In this paper, a novel method is proposed, which uses the straightforward concept of filter design to adapt the filter length based on the size of the sub-band. By this approach, the computational complexity might be reduced, Inter-Sub-band Interference (ISBI) and Inter Carrier Interference (ICI) can be reduced. Hence, the system gives better BER performance.

Keywords

5G UFMC ISBI ICI SNR Filter length Sub-band size FIR filter 

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Copyright information

© Springer Nature Singapore Pte Ltd. 2020

Authors and Affiliations

  1. 1.Department of Electrical and Electronics EngineeringUPESDehradunIndia
  2. 2.Department of Electronics Instrumentation & Control EngineeringUniversity of Petroleum and Energy StudiesDehradunIndia

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