• Journal of Internet Computing and Services
    ISSN 2287 - 1136 (Online) / ISSN 1598 - 0170 (Print)
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A Study on the Simulator Design of OFDM/QPSK Image Transmission System Embedded Watermark in Wireless Channel Environment


In-Hye Seo, Ji-Woong Kim, Heau-Jo Kang, Journal of Internet Computing and Services, Vol. 6, No. 5, pp. 133-142, Oct. 2005
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Keywords: DM-SS Watermarking, OFDM/QPSK, Interleaving, Multi-path Fading

Abstract

In this paper, we designed about OFDM/QPSK image transmission system simulator embedded watermark in wireless channel environment. Channel environment used OFDM/QPSK still image transmission system considering AWGN, Multi-path fading. And, we analyzed effect of still image and watermark information in considered channel environment. Watermark information is coded by DM-SS (Direct Matric/Spread Spectrum) image watermarking scheme, Also, we used interleaving scheme for mitigating the degradation in watermarking data under wireless channel. As a results, we could know that PSNR of watermark image improved of about 1dB by 54.2371dB then apply interleaving in same multi-path fading environment.


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Cite this article
[APA Style]
Seo, I., Kim, J., & Kang, H. (2005). A Study on the Simulator Design of OFDM/QPSK Image Transmission System Embedded Watermark in Wireless Channel Environment. Journal of Internet Computing and Services, 6(5), 133-142.

[IEEE Style]
I. Seo, J. Kim, H. Kang, "A Study on the Simulator Design of OFDM/QPSK Image Transmission System Embedded Watermark in Wireless Channel Environment," Journal of Internet Computing and Services, vol. 6, no. 5, pp. 133-142, 2005.

[ACM Style]
In-Hye Seo, Ji-Woong Kim, and Heau-Jo Kang. 2005. A Study on the Simulator Design of OFDM/QPSK Image Transmission System Embedded Watermark in Wireless Channel Environment. Journal of Internet Computing and Services, 6, 5, (2005), 133-142.