대한전자공학회논문지TC (Journal of the Institute of Electronics Engineers of Korea TC)

대한전자공학회 (The Institute of Electronics and Information Engineers)
권호 표지

무선 센서네트워크에서 비 위상동기 협동 릴레이 특성의 비교분석

Performance Comparison and Analysis of Non-Coherent Cooperative Relays for Wireless Sensor Networks

  • 권은미 (이화여자대학교 전자공학과) ;
  • 김정호 (이화여자대학교 전자공학과)
  • Kwon, Eun-Mi (Dept. of Electronics Engineering, Ewha Womans University) ;
  • Kim, Jeong-Ho (Dept. of Electronics Engineering, Ewha Womans University)
  • 투고 : 2012.02.21
  • 심사 : 2012.05.18
  • 발행 : 2012.05.25
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초록

이동성이 있는 센서 노드로 구성 된 센서 네트워크를 효율적으로 사용하기 위하여 고려해야 할 사항 중 중요한 것이 자원의 효율적인 사용과 신호를 빠르고 정확하게 보내는 것이다. 본 논문에서는 무선 센서 네트워크 내에서 SNR(Signal to Noise Ratio)과 릴레이 노드의 신호 증폭률 그리고 노드와 노드 간 직접적으로 통신하는 경우 경로의 이득의 변화에 따른 무선 센서 네트워크의 특성에 대하여 분석하고 다수의 협동 릴레이 노드가 존재할 때 선택기준을 제시하고 이에 따른 영향을 정량적으로 평가하였다.

In this paper, the capacity criteria have been proposed in order to select a cooperative relay node in WSNs, under the environment where direct path has a poor link gain. This process may ensure the efficiency improvement of signal transfer between source and destination and reduction of energy consumption as well. Two criteria are incorporated to select a cooperative relay node. Firstly, calculate the energy gain ratio between the relay path and the direct path. Secondly, investigate the effects of relay node's usage in WSNs through the simulation in terms of energy consumption. In the simulation, the relationship between energy consumption and direct path gain, uniformly generated in the certain range and its positive effects have been identified.

키워드

참고문헌

  1. Dejun Yang, Misra, S., Xi Fang, Guoliang Xue, Junshan Zhang, "Two-Tiered Constrained Relay Node Placement in Wireless Sensor Networks: Efficient Approximations" IEEE Communications Society Conference, vol.7, pp. 1-9, June 2010.
  2. Dharma Prakash Agrawal, Qingan Zeng, "Wireless and Mobile Systems" Thomson, 2003, pp.279-295
  3. Chakrapani, A. Malaney, R. Jinhong Yuan, "Energy Efficient Cooperative Communications using Location based Relaying" Communications Theory Workshop, pp. 105-109, 2009.
  4. Xiaofeng Han, Xiang Cao, Lloyd, E.L., Chien-Chung Shen, "Fault-Tolerant Relay Node Placement in Heterogeneous Wireless Sensor Networks" IEEE Transactions on Mobile Computing, vol. 9, issue 5, pp. 643-656, 2010. https://doi.org/10.1109/TMC.2009.161
  5. Chakrapani, A. Malaney, R. Jinhong Yuan, "Energy Efficient Cooperative Communications using Location based Relaying" Communications Theory Workshop, pp. 105-109, 2009.
  6. Azim, A., Islam, M.M., "Hybrid LEACH: A relay node based low energy adaptive clustering hierarchy for wireless sensor networks" IEEE 9th Malaysia International Conference on Communications, pp. 911-916, Dec. 2009.