Earticle

초록

영어

In the wireless body sensor network system (WB-SNS), saving energy in sensor nodes is a high priority. As an energy-saving method for sensor nodes, the transmission power control (TPC) algorithm has been developed. The TPC technique is a method of saving energy by adjusting the transmission power of the radio chip inside a sensor node. Numerous TPC algorithms exist, but in this paper, the dynamic TPC algorithm was analyzed intensively. The existing dynamic TPC algorithm utilizes a linear equation to find the optimal transmission power level (TPL). However, the existing dynamic TPC algorithm may operate well when the channel condition is good but it could estimate the TPL inaccurately due to the generation of an incorrect linear equation when the channel conditions are bad. Therefore, to solve the problem described above, this paper proposes an extended dynamic TPC algorithm that can estimate errors earlier based on slope values, which can be extracted at the time of generation of the linear equation, and estimate transmission power better by reutilizing the existing transmission power to create a more accurate equation. Through an experiment, this paper also proves that the extended dynamic TPC algorithm showed better performance compared to the existing dynamic TPC algorithm.

목차

Abstract
 1. Introduction
 2. Related Work
 3. Extended Dynamic Transmission Power Control
 4. Comparison of Dynamic and Extended Dynamic Transmission Power Control
 5. System Architecture and Experimental Setup
 6. Experimental Result
 7. Conclusion
 Acknowledgements
 References

키워드

저자

• Woosik Lee [ Dept. of Computer Science, Kyonggi Univ. Korea ]
• Min Choi [ School of Info. and Comm. Eng., Chungbuk National Univ., Korea ]
• Namgi Kim [ Dept. of Computer Science, Kyonggi Univ. Korea ] Corresponding author

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Control and Automation

• 간기

  월간

• pISSN

  2005-4297

• 수록기간

  2008~2016

• 십진분류

  KDC 505 DDC 605