WLCp2-10: Configurable Acknowledgment Delay (CAD) Mechanism for Asymmetric Space-Internet Links

Author

Wang, Ruhai ; Tian, B. ; Sun, Bo ; Guizani, Sghaier ; Xiao, Yang

Author_Institution

Dept. of Electr. Eng., Lamar Univ., Beaumont, TX

fYear

2006

fDate

Nov. 27 2006-Dec. 1 2006

Firstpage

1

Lastpage

5

Abstract

The default acknowledgment (ACK) strategy of TCP easily overruns the constrained ACK channel capacity of the asymmetric network links. There is no effective ACK mechanism to address the asymmetric channel problem for space-Internet. A configurable ACK delay (CAD) mechanism has been developed to delay the ACKs for a configurable period of time to improve the TCP throughput performance over asymmetric space-Internet links. This paper introduces the CAD mechanism and presents a performance evaluation of it in an experimental manner. The experimental results show that the CAD mechanism has significant performance advantages in asymmetric space links with a channel ratio higher than 50/1. The higher the asymmetric channel ratio is, the more advantageous the CAD is over the default ACK strategy.

Keywords

Internet; channel capacity; delays; radio links; transport protocols; asymmetric network links; asymmetric space-Internet links; channel capacity; configurable ACK delay; default acknowledgment strategy; Bandwidth; Channel capacity; Communication channels; Communication system control; Computer science; Delay effects; IP networks; Internet; Low earth orbit satellites; Throughput;

fLanguage

English

Publisher

ieee

Conference_Titel

Global Telecommunications Conference, 2006. GLOBECOM '06. IEEE

Conference_Location

San Francisco, CA

ISSN

1930-529X

Print_ISBN

1-4244-0356-1

Electronic_ISBN

1930-529X

Type

conf

DOI

10.1109/GLOCOM.2006.921

Filename

4151551