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A novel CRC based error correction scheme in OFDM/OFDMA wireless networks

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3 Author(s)
Chen Chia-Yao ; Institutes of Comput. Sci. & Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan ; Jia Wen-Kang ; Chen Yaw-Chung

Recently, the Orthogonal Frequency Division Multiplexing Access (OFDM/OFDMA) based wireless transmission technology has been widely accepted by consumers. Frame Check Sequence (FCS) scheme was employed to enhance the reliability of OFDM/OFDMA systems. Since the padding overhead cannot be effectively avoided in OFDM/OFDMA when MAC frames are encapsulated. We propose a novel CRC based error correction scheme by utilizing the frame padding to carry extra segmented FCS information as much as possible; compared with legacy FCS scheme, our approach obtains a significant improvement in error detection and correction upon the first retransmission (2nd transmission). In addition, we demonstrate a significant performance improvement based on the mathematic analysis.

Published in:
Information Theory and its Applications (ISITA), 2010 International Symposium on

Date of Conference: 17-20 Oct. 2010

Page(s):
668 - 672
E-ISBN :
978-1-4244-6017-5
Print ISBN:
978-1-4244-6016-8
INSPEC Accession Number:
11732823
Conference Location :
Taichung
Digital Object Identifier :
10.1109/ISITA.2010.5649682
Product Type:
Conference Publications

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