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Modelling TCP Reno with Spurious Timeouts in Wireless Mobile Environments

Summary: Modelling TCP Reno with Spurious Timeouts in
Wireless Mobile Environments
Shaojian Fu and Mohammed Atiquzzaman
Telecommunications and Networks Research Lab
School of Computer Science
University of Oklahoma,
Norman, OK 73019-6151, USA.
Email: {sfu,atiq}@ou.edu
Abstract-- TCP has been found to perform poorly in the pres-
ence of spurious timeouts (ST) caused by delay spikes which are es-
pecially more frequent in today's wireless mobile networks than in
traditional wired network. Because STs are generally considered
to represent a transient state in wired networks, previous research
did not consider the effects of ST on the steady state performance
of TCP. In this paper, we propose an analytical model for the send-
ing rate and throughput of TCP Reno as a function of packet error
rate and characteristics of spurious timeouts. The proposed model
has been validated against simulation results and has been found
to be more accurate than previous models in the presence of spu-
rious timeouts.


Source: Atiquzzaman, Mohammed - School of Computer Science, University of Oklahoma


Collections: Computer Technologies and Information Sciences