Design and implementation of reconfigurable DCT based adaptive PST techniques in OFDM communication system using interleaver encoder

R Shivaji; K R Nataraj; S Mallikarjunaswamy; K R Rekha

doi:10.17485/IJST/v13i29.976

Article

Design and implementation of reconfigurable DCT based adaptive PST techniques in OFDM communication system using interleaver encoder

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Indian Journal of Science and Technology

DOI: 10.17485/IJST/v13i29.976

Year: 2020, Volume: 13, Issue: 29, Pages: 3008-3020

Original Article

Design and implementation of reconfigurable DCT based adaptive PST techniques in OFDM communication system using interleaver encoder

R Shivaji^1*, K R Nataraj², S Mallikarjunaswamy³, K R Rekha⁴

¹Research Scholar, Don Bosco Institute of Technology, Visvesvaraya Technological University Belgaum, 590018, Karnataka, India
²Director and Dean, Don Bosco Institute of Technology, Bangalore, 560074, Karnataka, India
³Associate Professor, JSS Academy of Technical Education, Bangalore, 560060, Karnataka,India
⁴Professor, SJB Institute of Technology, Bangalore, 560060, Karnataka, India

*Corresponding Author
Email: [email protected]

Received Date:21 June 2020, Accepted Date:17 July 2020, Published Date:12 August 2020

This work is licensed under a Creative Commons Attribution 4.0 International License.

Abstract

Objectives: To propose Reconfigurable Discrete Cosine Transform (RDCT) in Orthogonal Frequency Division Multiplexing (OFDM) high speed communication system to improve efficient spectrum utilization and mitigation of jitter,selective fading effects. The adaptive PTS method reduces Inter-Carrier-Interference (ICI), Inter-Symbol-Interference (ISI), PAPR and the computational intricacy of the communication system. To analyse and compare the performance of proposed Reconfigurable method with existing conventional OFDM communication system. Methods: This proposed technique employs interleaver encoder with both PTS and adaptive PTS with the Reconfigurable Discrete Cosine Transform (RDCT) in OFDM Communication system. Finding: A case study has been carried out and the proposed method is found to be better in CCDF performance, reliability, flexibility and accuracy. To reduce the autocorrelation between every modulated data bit, Forward error Correction in comparison with the conventional OFDM communication system. Novelty: The recent high-speed communication system most commonly using Orthogonal Frequency division multiplexing (OFDM) to enhance the quality of service(QoS) and Bandwidth on demand. Even though the OFDM scheme offers many advantages the signal of OFDM consists of a noise that causes variation in the amplitude resulting in high peak to average power ratio (PAPR) and since OFDM is a multi-carrier system, it is more susceptible to signal drifts. Various methods to reduce the PAPR in OFDM signal are already proposed, in this paper, a technique called interleaver encoder-based Partial Transmit sequence (IEPTS) is reviewed and the new proposed technique employs interleaving encoder utilizing in both PTS and A-PTS with reconfigurable discrete cosine transform (RDCT) in OFDM high-speed communication system.

Keywords: Interleaver encoder; adaptive partial transmit sequence (A-PTS);orthogonal frequency-division multiplexing (OFDM); reconfigurable discrete cosine transform (RDCT); partial transmit sequence (PTS)

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Copyright

© 2020 Shivaji et al.This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Published By Indian Society for Education and Environment (iSee).