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| New network stream watermarking scheme based on interval changing slots |
| 1.School of Computer Science and Telecommunication Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China; 2.Department of Informational Engineering, Zhenjiang Branch, Jiangsu Union Technical Institute, Zhenjiang, Jiangsu 212016, China |
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Abstract In order to solve the changing contents and the simple grouping of packet in current watermarking technologies, a new watermarking scheme was proposed based on theoretical analysis and calculation. The packet delay was modulated subtly in the interval-based changing slot network stream watermarking scheme. The code division multiplexing was used to extend the watermark information and improve the error correction ability. To test and verify the performance of new technology, various network environments were simulated to complete many tests, and the detection rates were calculated by two ways. The experimental results show that the detection rate of new scheme is increased by 28% than the original group packet when the jitter average is more than 6 ms. When the jitter average is less than 10 ms, the mean detection error rate of new technology is less than 0.49, while the rate of original way is more than 0.5. The comparison shows that the new technology can improve the detection rate clearly with high performance.
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Received: 27 October 2014
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2015, Vol. 36 
