The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
A maioria dos sistemas P2P divide um arquivo em vários pedaços e busca pedaços diferentes de vários pares simultaneamente. Se uma das últimas peças for solicitada por um peer extremamente lento, o tempo total de download poderá se tornar excessivo. O modo final de jogo foi proposto para resolver este problema. Este método solicita a última peça de todos os pares conectados ao mesmo tempo. Infelizmente, as solicitações duplicadas geram tráfego redundante. Este artigo propõe um método de solicitação que não aumenta o tempo total de download, além de evitar o tráfego redundante. Também propomos uma combinação do nosso método de solicitação e do modo final do jogo. Os métodos propostos são comparados ao método existente com o modo end-game em simulações que utilizam BitTorrent como uma instância típica do sistema P2P de recuperação paralela. Os resultados confirmam que nosso método de solicitação pode corresponder aos tempos de download do modo final de jogo, ao mesmo tempo que suprime o tráfego redundante. Nosso método melhora o desempenho da rede absorvendo a diferença no desempenho dos pares e fornecendo tempos de download constantes sem desperdiçar recursos de tráfego. Além disso, também está confirmado que nosso método de combinação pode distribuir um arquivo mais rapidamente do que outros métodos.
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Junichi FUNASAKA, Akihiko ISHIZU, Kenji ISHIDA, "A File Fetching Method to Avoid Performance Deterioration on BitTorrent-Like P2P Networks" in IEICE TRANSACTIONS on Communications,
vol. E92-B, no. 8, pp. 2591-2599, August 2009, doi: 10.1587/transcom.E92.B.2591.
Abstract: Most P2P systems divide a file into many pieces and fetch different pieces from many peers simultaneously. If one of the last few pieces is requested from an extremely slow peer, the overall download time may become excessive. The end-game mode was proposed to solve this problem. This method requests the last piece from all the connected peers at the same time. Unfortunately, the duplicated requests generate redundant traffic. This paper proposes a requesting method that does not increase overall download time as well as avoiding the redundant traffic. We also propose a combination of our requesting method and the end-game mode. The proposed methods are compared to the existing method with the end-game mode in simulations that use BitTorrent as a typical instance of the parallel retrieving P2P system. The results confirm that our requesting method can match the download times of the end-game mode while suppressing the redundant traffic. Our method enhances network performance by absorbing the difference in peer performance and providing steady download times without wasting traffic resources. Moreover, it is also confirmed that our combination method can distribute a file more quickly than other methods.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.E92.B.2591/_p
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@ARTICLE{e92-b_8_2591,
author={Junichi FUNASAKA, Akihiko ISHIZU, Kenji ISHIDA, },
journal={IEICE TRANSACTIONS on Communications},
title={A File Fetching Method to Avoid Performance Deterioration on BitTorrent-Like P2P Networks},
year={2009},
volume={E92-B},
number={8},
pages={2591-2599},
abstract={Most P2P systems divide a file into many pieces and fetch different pieces from many peers simultaneously. If one of the last few pieces is requested from an extremely slow peer, the overall download time may become excessive. The end-game mode was proposed to solve this problem. This method requests the last piece from all the connected peers at the same time. Unfortunately, the duplicated requests generate redundant traffic. This paper proposes a requesting method that does not increase overall download time as well as avoiding the redundant traffic. We also propose a combination of our requesting method and the end-game mode. The proposed methods are compared to the existing method with the end-game mode in simulations that use BitTorrent as a typical instance of the parallel retrieving P2P system. The results confirm that our requesting method can match the download times of the end-game mode while suppressing the redundant traffic. Our method enhances network performance by absorbing the difference in peer performance and providing steady download times without wasting traffic resources. Moreover, it is also confirmed that our combination method can distribute a file more quickly than other methods.},
keywords={},
doi={10.1587/transcom.E92.B.2591},
ISSN={1745-1345},
month={August},}
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TY - JOUR
TI - A File Fetching Method to Avoid Performance Deterioration on BitTorrent-Like P2P Networks
T2 - IEICE TRANSACTIONS on Communications
SP - 2591
EP - 2599
AU - Junichi FUNASAKA
AU - Akihiko ISHIZU
AU - Kenji ISHIDA
PY - 2009
DO - 10.1587/transcom.E92.B.2591
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E92-B
IS - 8
JA - IEICE TRANSACTIONS on Communications
Y1 - August 2009
AB - Most P2P systems divide a file into many pieces and fetch different pieces from many peers simultaneously. If one of the last few pieces is requested from an extremely slow peer, the overall download time may become excessive. The end-game mode was proposed to solve this problem. This method requests the last piece from all the connected peers at the same time. Unfortunately, the duplicated requests generate redundant traffic. This paper proposes a requesting method that does not increase overall download time as well as avoiding the redundant traffic. We also propose a combination of our requesting method and the end-game mode. The proposed methods are compared to the existing method with the end-game mode in simulations that use BitTorrent as a typical instance of the parallel retrieving P2P system. The results confirm that our requesting method can match the download times of the end-game mode while suppressing the redundant traffic. Our method enhances network performance by absorbing the difference in peer performance and providing steady download times without wasting traffic resources. Moreover, it is also confirmed that our combination method can distribute a file more quickly than other methods.
ER -