Human Body Communication Using Chirp Spread Spectrum Modulation 


Vol. 35,  No. 5, pp. 440-446, May  2010


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  Abstract

Convergence of IT and BT is considered in many area, especially in medical care industry. The example of this trend is a capsule endoscope. But in a capsule endoscope, communication through human body has a few restrictions. At first, the transmit power should be limited not to have a bad effect on human organs and for the battery capacity. Second, the channel characteristic of human body has not been examined exactly. Third, general modulation / demodulation techniques which require a channel estimation cannot be used because of battery limit. There also may be a lot of interference signals because a capsule endoscope uses UWB bandwidth. In this paper, we introduce Chirp Spread Spectrum Differential Binary Phase Shift Keying(CSS-DBPSK) and propose Chirp Spread Spectrum On-Off Keying(CSS-OOK) which don't require a channel estimation and robust to interference signals. Using CSS-DBPSK or CSS-OOK, we can get 5 ㏈ or 2~3 ㏈ of Eb/N0 gain at 10-5 target BER. And if there are interference signals, those gains of CSS-DBPSK and CSS-OOK are increased.

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  Cite this article

[IEEE Style]

K. Kim, M. Jeon, K. Kim, J. Lee, S. Nam, "Human Body Communication Using Chirp Spread Spectrum Modulation," The Journal of Korean Institute of Communications and Information Sciences, vol. 35, no. 5, pp. 440-446, 2010. DOI: .

[ACM Style]

Kyungchul Kim, Myeongwoon Jeon, Kihyun Kim, Jungwoo Lee, and Sangwook Nam. 2010. Human Body Communication Using Chirp Spread Spectrum Modulation. The Journal of Korean Institute of Communications and Information Sciences, 35, 5, (2010), 440-446. DOI: .

[KICS Style]

Kyungchul Kim, Myeongwoon Jeon, Kihyun Kim, Jungwoo Lee, Sangwook Nam, "Human Body Communication Using Chirp Spread Spectrum Modulation," The Journal of Korean Institute of Communications and Information Sciences, vol. 35, no. 5, pp. 440-446, 5. 2010.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880