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Investigation of error performance in OFDM with network coding techniques in multiple relay networks

The aim of this paper proposes an orthogonal frequency-division multiplexing (OFDM) with network coding to improve the error performance of the system when the messages are transmitted from user to receiver. Two-way relay (TWR) networks are applied to reduce the transmission time slots. The exclusiv...

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Main Authors: Ngu War Hlaing, Ali Farzamnia, Manas Kumar Haldar, Liau Chung Fan
Format: Article
Language:English
English
Published: sciendo 2020
Subjects:
TA Engineering (General). Civil engineering (General)
Online Access:https://eprints.ums.edu.my/id/eprint/26191/1/Investigation%20of%20error%20performance%20in%20OFDM%20with%20network%20coding%20techniques%20in%20multiple%20relay%20networks.pdf
https://eprints.ums.edu.my/id/eprint/26191/2/Investigation%20of%20error%20performance%20in%20OFDM%20with%20network%20coding%20techniques%20in%20multiple%20relay%20networks1.pdf
https://eprints.ums.edu.my/id/eprint/26191/
https://doi.org/10.2478/jee-2020–0025
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spelling my.ums.eprints.261912020-10-23T10:55:28Z https://eprints.ums.edu.my/id/eprint/26191/ Investigation of error performance in OFDM with network coding techniques in multiple relay networks Ngu War Hlaing Ali Farzamnia Manas Kumar Haldar Liau Chung Fan TA Engineering (General). Civil engineering (General) The aim of this paper proposes an orthogonal frequency-division multiplexing (OFDM) with network coding to improve the error performance of the system when the messages are transmitted from user to receiver. Two-way relay (TWR) networks are applied to reduce the transmission time slots. The exclusive-OR (XOR) coding is used for network coding in which source nodes exchange their information via TWR nodes. The XOR coded bits provides redundancy to achieve the transmit diversity gain which improves the error performance of the TWR network. OFDM is exploited for TWR to obtain the frequency selective fading nature of wireless channels. The different modulation schemes such as Quadrature Phase Shift Keying (QPSK), 16-Quadrature Amplitude Modulation (QAM) and 64-QAM with OFDM system are simulated and QPSK is selected as it gives the lowest bit error rate (BER). The multiple relaying schemes with different numbers of the information packets are also considered in this paper. Simulation results show that multiple relay schemes provide faster transmission time and better error rate performance. Moreover, different kinds of channel coding schemes such as Convolutional, Reed-Solomon (RS) and turbo codes are applied in OFDM system with network coding to compare and evaluate the BER performance of the proposed system. From the simulation results, network coded OFDM scheme with turbo codes give better BER performance for given Signal-to-Noise Ratio (SNR) in relaying scheme with different numbers of information packets compared to those of convolutional and RS codes. It shows that, the error rate performance and transmission time is reduced 10 percent than the conventional scheme at even at low SNR value. sciendo 2020 Article PeerReviewed text en https://eprints.ums.edu.my/id/eprint/26191/1/Investigation%20of%20error%20performance%20in%20OFDM%20with%20network%20coding%20techniques%20in%20multiple%20relay%20networks.pdf text en https://eprints.ums.edu.my/id/eprint/26191/2/Investigation%20of%20error%20performance%20in%20OFDM%20with%20network%20coding%20techniques%20in%20multiple%20relay%20networks1.pdf Ngu War Hlaing and Ali Farzamnia and Manas Kumar Haldar and Liau Chung Fan (2020) Investigation of error performance in OFDM with network coding techniques in multiple relay networks. Journal of ELECTRICAL ENGINEERING, 71 (3). pp. 185-194. ISSN 1335-3632 https://doi.org/10.2478/jee-2020–0025
institution Universiti Malaysia Sabah
building UMS Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Sabah
content_source UMS Institutional Repository
url_provider http://eprints.ums.edu.my/
language English
English
topic TA Engineering (General). Civil engineering (General)
spellingShingle TA Engineering (General). Civil engineering (General)
Ngu War Hlaing
Ali Farzamnia
Manas Kumar Haldar
Liau Chung Fan
Investigation of error performance in OFDM with network coding techniques in multiple relay networks
description The aim of this paper proposes an orthogonal frequency-division multiplexing (OFDM) with network coding to improve the error performance of the system when the messages are transmitted from user to receiver. Two-way relay (TWR) networks are applied to reduce the transmission time slots. The exclusive-OR (XOR) coding is used for network coding in which source nodes exchange their information via TWR nodes. The XOR coded bits provides redundancy to achieve the transmit diversity gain which improves the error performance of the TWR network. OFDM is exploited for TWR to obtain the frequency selective fading nature of wireless channels. The different modulation schemes such as Quadrature Phase Shift Keying (QPSK), 16-Quadrature Amplitude Modulation (QAM) and 64-QAM with OFDM system are simulated and QPSK is selected as it gives the lowest bit error rate (BER). The multiple relaying schemes with different numbers of the information packets are also considered in this paper. Simulation results show that multiple relay schemes provide faster transmission time and better error rate performance. Moreover, different kinds of channel coding schemes such as Convolutional, Reed-Solomon (RS) and turbo codes are applied in OFDM system with network coding to compare and evaluate the BER performance of the proposed system. From the simulation results, network coded OFDM scheme with turbo codes give better BER performance for given Signal-to-Noise Ratio (SNR) in relaying scheme with different numbers of information packets compared to those of convolutional and RS codes. It shows that, the error rate performance and transmission time is reduced 10 percent than the conventional scheme at even at low SNR value.
format Article
author Ngu War Hlaing
Ali Farzamnia
Manas Kumar Haldar
Liau Chung Fan
author_facet Ngu War Hlaing
Ali Farzamnia
Manas Kumar Haldar
Liau Chung Fan
author_sort Ngu War Hlaing
title Investigation of error performance in OFDM with network coding techniques in multiple relay networks
title_short Investigation of error performance in OFDM with network coding techniques in multiple relay networks
title_full Investigation of error performance in OFDM with network coding techniques in multiple relay networks
title_fullStr Investigation of error performance in OFDM with network coding techniques in multiple relay networks
title_full_unstemmed Investigation of error performance in OFDM with network coding techniques in multiple relay networks
title_sort investigation of error performance in ofdm with network coding techniques in multiple relay networks
publisher sciendo
publishDate 2020
url https://eprints.ums.edu.my/id/eprint/26191/1/Investigation%20of%20error%20performance%20in%20OFDM%20with%20network%20coding%20techniques%20in%20multiple%20relay%20networks.pdf
https://eprints.ums.edu.my/id/eprint/26191/2/Investigation%20of%20error%20performance%20in%20OFDM%20with%20network%20coding%20techniques%20in%20multiple%20relay%20networks1.pdf
https://eprints.ums.edu.my/id/eprint/26191/
https://doi.org/10.2478/jee-2020–0025
_version_ 1760230467264577536
score 13.211869

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