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

The Korea Institute of Information and Commucation Engineering (한국정보통신학회)
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LP-MAC Technique in association with Low Power operation in unmanned remote wireless network

무인원격 무선 네트워크 환경에서의 저전력 운용을 고려한 LP-MAC 기법

  • Received : 2014.07.07
  • Accepted : 2014.08.05
  • Published : 2014.08.31
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Abstract

Because of the limited power resource, we need a reliable low-power media access control technique suitable for unmaned remote sensor operation condition for the unmanned sensor processor to perform the task in the remote wireless network situation. Therefore CSMA/CA and X-MAC is generally considered to effectively transmit the signal in the low-power wireless network. In this paper, we propose the more efficient low-power LP-MAC Technique which consumes the minimum power and transmits the data faster in condition that the mobile nodes' joining to and leaving from the network which consists of the fixed nodes is fluid. The fixed nodes operate in an asynchronous mode to perform the network self-configuration and transmit data faster to the mobile node which is frequently join and leave the network. When the mobile node leaves the network, the network's operation mode will be synchronous mode to achieve the minimum power consumption, thus the minimum power operation becomes possible.

원격 무선 네트워크 환경에서의 무인 센서 신호처리기의 임무 수행을 위해서는 한정된 전력 자원으로 인해 무인 원격 센서 무선운용 상황에 적합한 신뢰성 있는 저전력 매체 접속 제어 기법이 요구된다. 저전력 무선 네트워크에서 효과적인 신호 전송을 위해서는 CSMA/CA, X-MAC을 일반적으로 고려한다. 본 논문에서는 고정 노드로 구성되는 무선 네트워크에서 노드 제어를 위한 이동 노드의 망 참여/탈퇴가 유동적인 망 형태에서의 신속한 데이터 전달 및 소모 전력 최소화 달성이 가능한 저전력 성능이 향상된 LP-MAC 동작 기법을 제안한다. 고정노드는 망 자율구성을 수행하여 망에 수시로 참여/탈퇴하는 이동 노드로의 빠른 정보 전달을 위해 비동기 방식으로 동작한다. 이동 노드가 망에서 탈퇴할 경우, 망 전체 운용모드가 소모 전력의 최소화를 위한 동기모드로 천이됨으로써 최소 전력 운용이 가능한 매체접속 제어 기법이다.

Keywords

References

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