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A secure error-resilient lossless source coding scheme based on punctured turbo codes

Payandeh, A ; Sharif University of Technology | 2006

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  1. Type of Document: Article
  2. Publisher: 2006
  3. Abstract:
  4. In this paper, we develop a new error-resistant secure lossless source coding scheme for discrete sources. Recent results indicate that the same turbo principle that provides sub-optimal strategy for channel coding, can be used to obtain efficient source coding schemes. We extend the source turbo-coding idea to include security for transmission of the compressed data and also to ensure the lossless recovery of information at the receiver. Compression and security are achieved by adapting the random puncturing strategy to the statistics of the source. Lossless compression is guaranteed by finely puncturing the encoded data of a parallel-concatenated turbo code while verifying the integrity of the source information at the source encoder. Simulation results show that the proposed scheme can obtain a compression rate close to the source entropy. For the same block length, this scheme yields better compression rates in comparison with the Lempel-Ziv universal source coding. The proposed scheme has a robust and error-resistant performance over noisy channels for Eb / N 0 >5 dB. © 2006 JD
  5. Keywords:
  6. Bit error rate ; Communication channels (information theory) ; Computer simulation ; Data compression ; Security of data ; Turbo codes ; Error resistant source coding ; Random puncturing strategy ; Secure source coding ; Source turbo coding ; Encoding (symbols)
  7. Source: Iranian Journal of Electrical and Computer Engineering ; Volume 5, Issue 1 , 2006 , Pages 19-23 ; 16820053 (ISSN)
  8. URL: https://www.sid.ir/en/Journal/ViewPaper.aspx?ID=41452