Sending image in noisy channel using orthogonal frequency division multiplexing scheme

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Abstract

Orthogonal frequency division multiplexing (OFDM) is dependable in data transmission with high speed by the benefit of its robustness to multi-path fading, high data rate, and high spectral efficiency. OFDM is a multi-carrier modulation scheme. Synchronization is the major problems of the OFDM system. In this research, the power consumption was considering through a noisy channel when an image was transmitted in the OFDM system. To support the work, many features were tested such as minimizing the complexity with fast Fourier transforms/inverse fast Fourier transform (FFT/IFFT). The size of bandwidth (BW) play the main role and how its effect on the transmission and how its related to the FFT size (Nfft). The modulation type was also tested to see which one is the best for image transmitted. These types are phase shift keying (PSK) and quadrature amplitude modulation (QAM). In addition, signal to noise ratio (SNR) is one of the performances in OFDM system and consider one of the factors which wireless communication depends on related with bit error rate (BER). Another drawback of the OFDM system was Peak-to-average power ratio (PAPR), therefore, the effect of Nfft on the PAPR has been tested with simulation results in which additive white Gaussian noise (AWGN) had been used in the MATLAB simulation.

Original languageEnglish
Pages (from-to)3791-3801
Number of pages11
JournalJournal of Theoretical and Applied Information Technology
Volume96
Issue number12
Publication statusPublished - 30 Jun 2018
Externally publishedYes

Fingerprint

Orthogonal Frequency Division multiplexing (OFDM)
Orthogonal frequency division multiplexing
Fast Fourier transforms
Peak-to-average Power Ratio (PAPR)
Fast Fourier transform
Modulation
Quadrature Amplitude Modulation
Matlab Simulation
Multicarrier
Multipath fading
Spectral Efficiency
Phase shift keying
Quadrature amplitude modulation
Multicarrier modulation
Gaussian White Noise
Multipath
Data Transmission
Fading
Phase Shift
Wireless Communication

Keywords

  • Bit error rate
  • Fast fourier transform
  • Orthogonal frequency division multiplexing
  • Peak-to-Average power ratio
  • Signal-to-Noise Ratio

ASJC Scopus subject areas

  • Theoretical Computer Science
  • Computer Science(all)

Cite this

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abstract = "Orthogonal frequency division multiplexing (OFDM) is dependable in data transmission with high speed by the benefit of its robustness to multi-path fading, high data rate, and high spectral efficiency. OFDM is a multi-carrier modulation scheme. Synchronization is the major problems of the OFDM system. In this research, the power consumption was considering through a noisy channel when an image was transmitted in the OFDM system. To support the work, many features were tested such as minimizing the complexity with fast Fourier transforms/inverse fast Fourier transform (FFT/IFFT). The size of bandwidth (BW) play the main role and how its effect on the transmission and how its related to the FFT size (Nfft). The modulation type was also tested to see which one is the best for image transmitted. These types are phase shift keying (PSK) and quadrature amplitude modulation (QAM). In addition, signal to noise ratio (SNR) is one of the performances in OFDM system and consider one of the factors which wireless communication depends on related with bit error rate (BER). Another drawback of the OFDM system was Peak-to-average power ratio (PAPR), therefore, the effect of Nfft on the PAPR has been tested with simulation results in which additive white Gaussian noise (AWGN) had been used in the MATLAB simulation.",
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