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Channel Capacity of Additional Data Transmission System for Spectrum Efficiency Improvement  

Kim, Joo-Chan (광운대학교 전자융합공학과)
Kim, Jin-Young (광운대학교 전자융합공학과)
Publication Information
The Journal of the Institute of Internet, Broadcasting and Communication / v.10, no.4, 2010 , pp. 145-150 More about this Journal
Abstract
In this paper, we propose additional data transmission system for spectrum efficiency improvement and derive channel capacity formula as a approximated closed-form. Spread spectrum watermarking scheme is selected for the watermarking embedder. Nakagami-q (Hoyt) model is considered as a multipath fading channel. Numerical results show the channel capacity variation of the proposed system in wireless fading channel. From the results, we confirm that the channel capacity of the watermarking system is affected by the fading coefficient and system parameters such that host sampling frequency, host-to-watermark ratio, watermark-to-noise ratio, and PN sequence length.
Keywords
Spectrum efficiency; Channel capacity; Wireless fading channel; Watermarking system;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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