TCP Yam:一個具有高效能的公平傳輸控制協定

在網路的發展裡面，傳輸控制協定(transmission control protocol)是一門重要的研究領域。傳輸控制協定負責使用者之間的資料傳輸、資料傳輸格式、壅塞控制等工作。此篇論文為研究傳輸控制協定裡的壅塞控制技術。在傳輸控制協定裡，利用壅塞控制來調節網路之間的資料傳輸，並同時兼顧每個連線的效能儘可能的一致，使得各連線擁有相同的公平性。在此，傳輸效能和公平性是藉以判斷傳輸控制優劣的指標。對於網路之間的互相傳輸有可能影響連線，使得傳輸效能的落差變大。於是，如何盡量提高傳輸效能和維持網路之間一定的公平性是本論文主要考量。藉由電腦模擬實驗的觀察和統計，發現我們所提出的改善機制能提高傳輸效能且將效能維持在八成到九成的網路頻寬中、和維持相當程度的公平性，此皆不遜色於現行使用的傳輸協定。而這些數據收錄於此論文的第四章。

關鍵字

傳輸控制協定；資料傳輸格式；壅塞控制；慢傳輸機制；壅塞避免機制；快速重傳機制；快速恢復機制；傳輸效能

並列摘要

In the evolution of network technology, the transmission control protocol (TCP) is an important research topic. It is responsible for data transmissions of end users, flow control, congestion control, and other tasks. The thesis focuses on the congestion control scheme. In TCP, the congestion control is used to maximize the data transmission without causing network congestion. There exist different congestion control schemes, whose performance in throughput and fairness varies. Some trade fairness for throughput and some vice versa. Our research goal is to achieve good performance on both throughput and fairness. Through computer simulations, we are given to understand that our scheme can improve the throughput and preserve the fairness.

並列關鍵字

TCP ； TCP Header ； Congestion Control ； Slow Start ； Congestion Avoidance ； Fast Restransmit ； Fast Recovery ； RTT

參考文獻

[13] H. Balakrishnan and R.H. Katz, “Explicit Loss Notification and Wireless Web Performance,” in the Proc. of the IEEE Globecom’98 Internet Mini-Conference, Nov. 1998

[1] J. Postel (ed.), “DoD standard Transmission Control Protocol,” Internet RFC 761, USC/Information Sciences Institute, Jan. 1980

[2] J. Postel (ed.), “Transmission Control Protocol – DARPA Internet Program Protocol Specification,” Internet RFC 793, USC/Information Sciences Institute, Sep. 1981

[7] V. Jacobson, “Congestion Avoidance and Control,” ACM SIGCOMM Computer Communication Review, vol. 25, issue 1, pp. 157–187, Jan. 1995

[11] A. Kuzmanovic and E.W. Knightly, “TCP-LP: Low-Priority Service via End-Point Congestion Control,” IEEE/ACM Transaction on Networking, vol. 14, issue 4, pp. 739–752, Aug. 2006

國際替代計量

TCP Yam:一個具有高效能的公平傳輸控制協定

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