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Complete complementary code can be applied to digital watermarking technologies as well as communication systems like approximately synchronized CDMA because of its good correlation properties. In this paper, we propose a blind watermarking algorithm which does not need to refer any original data in the watermark extraction process. We also discuss the analogy between the proposed watermarking scheme...
A convoluted-time and code division multiple access (CT-CDMA) communication system based on complete complementary codes has been proposed. There are some variations in setting some parameters for this communication system. In this study, we generalize the parameter settings for this communication system, and evaluate the constraints where the information data can be transmitted without any errors...
Signal design methods for the approximately synchronized CDMA systems based on complete complementary codes have been proposed. It has been shown that both the information transmission rate and the frequency usage rate can be increased by these kinds of CDMA systems. However, there are two big problems, that is, the small cell capacity and the large signal power. In this paper, we consider another...
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