Performance Evaluation Of Error Correcting Techniques For OFDM Systems - Couverture souple

Malik, Jawad Ahmed; Qazi, Yasir Javed; Muhammad, Safwan

 
9783659546990: Performance Evaluation Of Error Correcting Techniques For OFDM Systems
Couverture souple
ISBN 10 : 3659546992 ISBN 13 : 9783659546990
Editeur : LAP LAMBERT Academic Publishing, 2014

Synopsis

Orthogonal frequency-division multiplexing (OFDM) systems provide efficient spectral usage by allowing overlapping in the frequency domain. Additionally, they are highly immune to multipath delay spread. In these systems, modulation and demodulation can be done using Inverse Fast Fourier Transform (IFFT) and Fast Fourier Transform (FFT) operations, which are computationally efficient. OFDM allows suppression of inter-symbol interference (ISI), provides flexible bandwidth allocation and may increase the capacity in terms of number of users. In this work, we have investigated the performance of different error correcting techniques for OFDM systems. These techniques are based on Convolutional codes, Linear Block codes and Reed-Solomon codes. Simulations are performed to evaluate the considered techniques for different channel conditions. By comparing the three techniques, the results show that Reed-Solomon codes performs the best for all error rates due to its consistency in performance at both low and high code rates which we verified by results.

Les informations fournies dans la section « Synopsis » peuvent faire référence à une autre édition de ce titre.

Présentation de l'éditeur

Orthogonal frequency-division multiplexing (OFDM) systems provide efficient spectral usage by allowing overlapping in the frequency domain. Additionally, they are highly immune to multipath delay spread. In these systems, modulation and demodulation can be done using Inverse Fast Fourier Transform (IFFT) and Fast Fourier Transform (FFT) operations, which are computationally efficient. OFDM allows suppression of inter-symbol interference (ISI), provides flexible bandwidth allocation and may increase the capacity in terms of number of users. In this work, we have investigated the performance of different error correcting techniques for OFDM systems. These techniques are based on Convolutional codes, Linear Block codes and Reed-Solomon codes. Simulations are performed to evaluate the considered techniques for different channel conditions. By comparing the three techniques, the results show that Reed-Solomon codes performs the best for all error rates due to its consistency in performance at both low and high code rates which we verified by results.

Biographie de l'auteur

Jawad Ahmed Malik born in Rawalpindi, Pakistan, in 1986. He did his Masters in Electrical Engineering with emphasis on Radio Communication from Blekinge Institute of Technology, Sweden. His areas of interests are Digital Signal Processing, cooperative communication systems, Wireless networks and radio communication.

Les informations fournies dans la section « A propos du livre » peuvent faire référence à une autre édition de ce titre.

Éditeur
LAP LAMBERT Academic Publishing
Date d'édition
2014
Langue
anglais
ISBN 10 
3659546992
ISBN 13 
9783659546990
Reliure
Broché
Nombre de pages
80
Coordonnées du fabricant
non disponible
Personne responsable
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Autres éditions populaires du même titre

9783330076068: Performance Evaluation of Error Correcting Techniques for OFDM Systems

Edition présentée

ISBN 10 :  3330076062 ISBN 13 :  9783330076068
Editeur : LAP LAMBERT Academic Publishing, 2017
Couverture souple