The improvement of TCP over HFC-based asymmetric networks

Author

Xianguan Wang ; Hong Ni ; Ming Zhu ; Lei Liu

Author_Institution

Dept. of Autom., USTC, Hefei, China

fYear

2012

fDate

27-29 Sept. 2012

Firstpage

323

Lastpage

326

Abstract

In this paper, we investigated the influence of asymmetric on TCP over HFC-based networks and related methods to improve the TCP performance. Then, a scheme called Modified Adaptive SACK Filtering is proposed to improve the TCP performance by adjusting the size of the block information in SACK option according to the real-time characteristics of network. Furthermore, based on the fact that the forward data is isotonic in HFC, Accelerated Lost Package Confirm is proposed to accelerate retransmission of lost packet. Based on the simulation results, the scheme make more significant performance improvement on TCP throughput than Reno and SACK Filtering.

Keywords

computer network performance evaluation; hybrid fibre coax networks; transport protocols; HFC-based asymmetric networks; TCP performance improvement; TCP throughput; accelerated lost package confirm; block information size adjustment; data forwarding; lost packet retransmission; modified adaptive SACK filtering; real-time network characteristics; Acceleration; Bandwidth; Filtering; Hybrid fiber coaxial cables; Receivers; Simulation; Throughput;

fLanguage

English

Publisher

ieee

Conference_Titel

Information and Automation for Sustainability (ICIAfS), 2012 IEEE 6th International Conference on

Conference_Location

Beijing

Print_ISBN

978-1-4673-1976-8

Type

conf

DOI

10.1109/ICIAFS.2012.6419925

Filename

6419925