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IP over ATM 네트워크에서 퍼지 버퍼 관리 알고리즘

A Fuzzy Logic Buffer Management Algorithm

  • 발행 : 2005.04.01

초록

본 논문에서는 ATM 네트워크에서 인터넷 트래픽 성능 향상을 위한 퍼지를 응용한 버퍼 관리 알고리즘을 제안한다. 제안된 알고리즘은 퍼지 제어기를 이용해서 새로 도착하는 패킷을 버퍼의 상태와 VC의 부하에 따라 동적으로 폐기를 결정하여 버퍼 이용 효율과 GFR의 요구사항을 충족할 수 있도록 하였다. 컴퓨터 시뮬레이션을 통해 기존의 버퍼 관리 알고리즘과 성능을 비교한 결과, 공평성과 TCP 수율 면에서 성능이 향상됨을 보였다.

We propose a fuzzy logic-based buffer management algorithm to improve internet traffic over ATM-GFR service. The proposed algorithm employs the strategies of early congestion detection and selective packet discard to achieve its design goals. A key feature of proposed algorithm is its ability to accept or drop a new incoming packet dynamically based on buffer condition and load rate of VCs. This is achieved by using fuzzy logic controller for the production of a drop factor. Simulation results show that proposed scheme significantly has improved fairness and TCP throughput compared with previous schemes.

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참고문헌

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