The Journal of Korean Institute of Communications and Information Sciences (한국통신학회논문지)

The Korean Institute of Commucations and Information Sciences (한국통신학회)
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Estimation of Velocity and Training Overhead Constraints for Energy Efficient Cooperative Technique in Wireless Sensor Networks

협력통신을 이용하는 무선 센서네트워크에서의 에너지 소비 감소를 위한 속도와 훈련심볼의 오버헤드 임계값 추정

  • Published : 2009.05.31
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Abstract

A boundary value of the velocity of data gathering node (DGN) and a critical value for training overhead beyond which the scheme will not be feasible for a Multiple Input Multiple Output (MIMO) based cooperative communication for energy-limited wireless sensor networks is proposed in this paper. The performance in terms of energy efficiency and delay for a combination of two transmitting and two receiving antennas is analyzed. The results show that a set of critical value of velocity and training overhead pair is present for the long haul communication from the sensors to the data gathering node. Finally a relation between training overhead and velocity is simulated.

본 논문에서는 에너지가 제한적인 무선 센서네트워크에서 MIMO 기반 협력통신을 가능하게 하는 훈련심볼의 오버헤드와 데이터 수집노드(DGN)의 속도의 임계값을 제안한다. 두개의 송수신 안테나가 있는 경우에 대하여 에너지 효율과 지연값에 대한 성능을 분석하였다. 센서로부터 데이터 수집노드까지 장거리 통신을 할 경우에 대하여 기존의 SISO 보다 에너지를 적게 소모하는 MIMO 기반 협력통신 무선 센서 네트워크의 속도와 훈련심볼의 오버헤드 임계값들을 구하였으며 이들의 상관관계도 분석하였다.

Keywords

References

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