Home

About

Advanced Search

Browse by Discipline

Scientific Societies

E-print Alerts

Add E-prints

E-print Network
FAQHELPSITE MAPCONTACT US


  Advanced Search  

 
378 IEEE COMMUNICATIONS LETTERS, VOL. 9, NO. 4, APRIL 2005 Stability and Fairness of Rate Estimation-Based
 

Summary: 378 IEEE COMMUNICATIONS LETTERS, VOL. 9, NO. 4, APRIL 2005
Stability and Fairness of Rate Estimation-Based
AIAD Congestion Control in TCP
Kai Xu and Nirwan Ansari, Senior Member, IEEE
Abstract-- We analyze two achievable rate estimators that
use different timestamps of consecutive packets. We examine
the effect of the choice of rate estimators on the stability and
fairness of a class of TCP protocols that use this estimated rate
to implement the additive-increase/adaptive-decrease (AIAD)
congestion control. Simulation results confirm our analysis that
rate estimation based on the inter-arrival times of the ACK
packets is not properly bounded and would cause instability of
the AIAD algorithm and unfairness among competing TCP flows,
particularly in networks with small or moderate buffer space.
Whereas, the rate estimation based on the inter-arrival times of
the data packet at the receiver maintains its accuracy even when
the reverse path is congested, and enables the AIAD algorithm to
maintain the stability and fairness as the number of competing
flows increases. Our analysis also suggests a straightforward
enhancement to TCP Westwood that would improve its stability

  

Source: Ansari, Nirwan - Department of Electrical and Computer Engineering, New Jersey Institute of Technology

 

Collections: Engineering