Journal of the Korea Academia-Industrial cooperation Society (한국산학기술학회논문지)

The Korea Academia-Industrial cooperation Society (한국산학기술학회)
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A MAC Protocol for Transmission Power Control in Ad Hoc Networks

애드 혹 네트워크에서 전송파워 제어를 위한 MAC 프로토콜

  • Hwang, Sungho (Dept. of Information & Communication Engineering, Kangwon National University)
  • 황성호 (강원대학교 정보통신공학전공)
  • Received : 2013.01.09
  • Accepted : 2013.02.06
  • Published : 2013.02.28
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Abstract

This paper presents a transmission power control MAC protocol that allows terminals to vary transmit power level on data frame basis in ad hoc network. Unlike the IEEE 802.11 approach, we do not use the RTS/CTS packets to silence the neighboring nodes. Instead, channel gain and distance information between transmitter and receiver terminal are inserted in the RTS/CTS packets. These informations are used to dynamically bound the transmission power. Simulation results indicate that, compared to the GMAC, the proposed MAC protocol achieves a increase in the average frame delivery ratio and a decrease in the average frame delay.

본 논문에서는 애드 혹 네트워크에서 데이터 프레임을 전송할 때마다, 전송 파워를 동적으로 바꾸어 전달하는 MAC 프로토콜을 제안하였다. IEEE 802.11과는 달리, 주변 노드들의 전송을 방지하기 위한 RTS/CTS 프레임을 사용하지 않았다. 그 대신에 송신 터미널과 수신 터미널 사이의 RTS/CTS 프레임 내에 채널이득과 거리 정보 넣어 전송하였다. 이들 정보는 동적으로 전송파워 값을 구하는데 사용된다. 시뮬레이션 결과, 제안한 MAC 프로토콜이 GMAC과 비교하여 프레임 평균 전달률은 증가했고, 평균 지연에서는 감소하는 성능을 보였다.

Keywords

References

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