• Title/Summary/Keyword: NCPD

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Analysis of Adaptive Cycle Packet Drop and Non-Adaptive Cycle Packet Drop for Congestion Control in Internet (인터넷에서 혼잡제어를 위한 적응적 사이클 패킷 폐기 기법과 비적응적 사이클 패킷 폐기 기법의 분석)

  • Kim, Su-Yeon;Kahng, Hyun-Kook
    • The KIPS Transactions:PartC
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    • v.9C no.5
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    • pp.783-788
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    • 2002
  • Adaptive Cyclic Packet Dropping algorithm (ACPD), and Non-adaptive Cyclic Packet Dropping algorithm (NCPD) are applying stricter drop precedence than that of RIO algorithm. Especially, the ACPD algorithm drops adaptively packets for the congestion control, as predicting traffic pattern between each cycle. Therefore the ACPD algorithm makes up for the drawback of RIO algorithm and minimizes the wastes of the bandwidth being capable of predicting in the NCPD algorithm. And we executed a simulation and analyzed the throughput and packet drop rate based on Sending Priority changing dynamically depending on network traffic. In this algorithm, applying strict drop precedence policy, we get better performance on priority levels. The results show that the proposed algorithms may provide more efficient and stricter drop precedence policy as compared to RIO independent of traffic load. The ACPD algorithm can provide better performance on priority levels and keep stricter drop policy than RIO and the NCPD algorithm.

Comparison and Analysis of Cycling Packet Drop Algorithms and RIO as Packet Drop for the Congestion Control (혼잡제어용 패킷 폐기를 위한 사이클링 패킷 폐기 기법과 RIO 알고리즘의 비교 분석)

  • Kim, Su-Yeon;Gang, Hyeon-Guk
    • Journal of the Institute of Electronics Engineers of Korea TC
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    • v.39 no.2
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    • pp.59-68
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    • 2002
  • In this paper, we compared and analyzed two new models of cyclic packet dropping algorithm, Adaptive Cyclic Packet Dropping algorithm (ACPD), and Non-adaptive Cyclic Packet Dropping algorithm (NCPD) with RIO. The ACPD algorithm drops adaptively packets for the congestion control, as predicting traffic pattern between each cycle. Therefore the ACPD algorithm makes up for the drawback of RIO algorithm and minimizes the wastes of the bandwidth being capable of predicting in the NCPD algorithm. We modelled two cyclic packet drop algorithms and executed a simulation and analyzed the throughput and packet drop rate based on Sending Priority changing dynamically depending on network traffic. In this algorithm, applying the strict drop precedence policy, we get better performance on priority levels. The results show that two new algorithms may provide more efficient and stricter drop precedence policy as compared to RIO independent of traffic load. The ACPD algorithm can provide better performance on priority levels and keep stricter drop policy than other algorithms.