Journal of the Korea Institute of Information and Communication Engineering (한국정보통신학회논문지)

The Korea Institute of Information and Commucation Engineering (한국정보통신학회)
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A Channel Assignment based on Transmission Distance on Wireless Multi-Channel Sensor Networks

다중 채널 무선 센서 네트워크에서 전송 거리 기반 채널 할당

  • Received : 2013.08.27
  • Accepted : 2013.09.24
  • Published : 2014.01.31
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Abstract

In this paper, we propose a transmission scheme to reduce energy consumption on wireless multi-channel sensor networks. This proposed scheme differentiates the number of usable channels based on a priority. Sensor nodes consume the most energy to transmit data. Also, as transmission distance is far, they consume the more energy. Therefore retransmission due to transmission failure of sensor nodes that are long transmission distance is required more energy consumption. In this paper, we provide a stable transmission environment by allocating a high priority for data that is sent far away. The received data with a high priority is more allocated the number of usable channels. In the experiment results, the receiving failure probability and the restransmission energy consumption of proposed scheme is superior to ones of comparison scheme.

본 논문에서는 다중 채널을 지원하는 무선 센서 네트워크에서 에너지 소비를 줄이기 위하여 우선순위를 기반으로 사용가능한 채널의 수를 달리하는 전송 기법을 제안한다. 센서 네트워크에서는 센서 노드들은 데이터 전송시에 가장 많은 에너지를 소비하고 전송거리가 길수록 더 많은 에너지를 소모한다. 그러므로 먼 거리에서 전송된 패킷의 전송 실패로 인한 재전송은 추가적인 많은 에너지 소모를 유발한다. 이에 본 논문에서는 재전송으로 인한 추가적인 에너지 소모를 줄이기 위해서 전송 거리가 먼 센서 노드들에게 높은 우선순위를 배정하여 안정적인 전송 환경을 제공한다. 높은 우선순위의 수신 데이터를 위해서 사용가능한 채널의 수를 보다 많이 할당한다. 실험의 결과 제안 기법은 연결실패확률과 재전송에 따른 에너지 소모량에서 좋은 성능을 보였다.

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References

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