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

The Korean Institute of Commucations and Information Sciences (한국통신학회)
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Packet Discrimination Method Using Artificial Frequency Offsets for Low Decoding Power Consumption in Heterogeneous Cooperative Communication Systems

이기종 협력 통신시스템에서 디코딩 전력소모 감소를 위한 인위적인 주파수 오프셋을 이용한 패킷 구별 기법

  • Chae, Seungyeob (Dongguk University Department of Information Communication Engineering) ;
  • Yeo, Gyuhak (Dongguk University Department of Information Communication Engineering) ;
  • Rim, Minjoong (Dongguk University Department of Information Communication Engineering)
  • Received : 2014.04.08
  • Accepted : 2014.07.11
  • Published : 2014.07.31
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Abstract

When a hand-held device with limited battery transmits and receives data using short-range wireless communication systems, such as WLAN(Wireless Local Area Network) or high speed WPAN(Wireless Personal Area Network), instead of mobile communication systems, the device is able to reduce the power consumption due to the reduced transmission distance. However, if there are many WLAN or high speed WPAN systems around the device, non-negligible power may be consumed by receiving and decoding the packets which have nothing to do with the device. In this paper, we propose a scheme reducing the power consumption by including physical-layer ID in WLAN or WPAN packets and avoiding unnecessary packet receptions. Also, we describe a method to determine the optimum number of physical-layer IDs.

배터리의 제한이 있는 이동통신 단말이 이동통신이 아닌 무선LAN(Local Area Network)또는 고속 무선PAN(Personal Area Network)등의 근거리 무선통신 시스템을 이용하여 주변에 위치한 전력이 풍부한 디바이스의 릴레이 동작을 통해 데이터를 송수신 한다고 가정할 때 단말은 송신거리 감소에 의해서 전력소모를 줄일 수 있다. 하지만 단말 주변에 매우 많은 무선LAN 및 고속 무선PAN시스템이 존재할 경우 자신과 상관없는 패킷을 수신함으로써 또다른 전력소모 문제가 발생한다. 본 논문에서는 이러한 문제를 해결하기 위해 물리계층에 주파수 오프셋을 이용한 ID를 넣으므로써 불필요한 패킷 수신을 회피하여 전력소모를 줄일 수 있는 방법을 제안하며 이 방법을 이용하였을 때 최적의 물리계층 ID개수를 찾는다.

Keywords

References

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