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End-to-End Performance of Packet Aggregation Transmission on MANET under DDoS Attacks

DDoS 공격이 있는 MANET에서 패킷취합전송의 종단간 성능

  • 김영동 (동양대학교 정보통신공학과)
  • Received : 2014.04.11
  • Accepted : 2014.06.16
  • Published : 2014.06.30

Abstract

DDoS attacks on MANET makes disable any node which support network function, cause critical results as a stopping of entire network service or separation to some parts. Packet aggregation, which gather some pieces of short length into a certain length of data, improves transmission performances on MANETs. In this paper, some effects on transmission performance of packet aggregation transmission be caused by DDoS Attacks are measured and analyzed in point of end-to-end level. MANET simulator, based on NS-2, is used for measurement end-to-end performances. MOS, connection rate, delay and packet loss rate is used as performance parameters. VoIP traffic is used for object service measurement. Finally, it is suggested that number of packet aggregation is more then 4 for keeping the transmission quality over MANETs under DDoS attacks.

MANET에서 DDoS 공격은 네트워크 기능을 수행해야하는 노드를 무력화시켜 네트워크 전체를 마비시키거나 노드의 위치에 따라 네트워크를 분리시키는 치명적인 결과를 초래할 수 있다. 짧은 길이의 데이터를 일정길이의 데이터로 모아서 전송하는 패킷취합전송은 MANET 환경에서 전송성능이 개선되는 효과를 보이고 있다. 본 논문에서는 이러한 MANET 환경에서 DDoS 공격이 패킷취합전송의 전송성능에 미치는 영향을 종단간 관점에서 측정하고 분석한다. 종단간 성능측정에는 NS-2를 기반으로 구축한 MANET 시뮬레이터를 이용하였으며, MOS, 연결율, 지연 및 패킷손실율을 측정 대상 성능 파라미터로 사용하였다. 음성서비스인 VoIP 트래픽을 측정대상 트래픽으로 사용했다. 본 논문의 결과로서 DDoS 공격이 있는 MANET에서 패킷취합수가 4이상일 때 전송품질 유지에 유리함을 확인하였다.

Keywords

References

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