Implementation and performance evaluation of Indirect TCP
Bakre, A.V.; Badrinath, B.R.
Computers, IEEE Transactions on
Volume 46, Issue 3, Mar 1997 Page(s):260 - 278
Digital Object Identifier 10.1109/12.580423
Summary:With the advent of small portable computers and the technological
advances in wireless communications, mobile wireless computing is likely
to become very popular in the near future. Wireless links are slower and
less reliable compared to wired links and are prone to loss of signal
due to noise and fading. Furthermore, host mobility can give rise to
periods of disconnection from the fixed network. The use of existing
network protocols, which were developed mainly for the high bandwidth
and faster wired links, with mobile computers thus gives rise to unique
performance problems arising from host mobility and due to the
characteristics of wireless medium. Indirect protocols can isolate
mobility and wireless related problems using mobility support routers
(MSRs) as intermediaries, which also provide backward compatibility with
fixed network protocols. We present the implementation and performance
evaluation of I-TCP, which is an indirect transport layer protocol for
mobile wireless environments. Throughput comparison with regular (BSD)
TCP shows that I-TCP performs significantly better in a wide range of
conditions related to wireless losses and host mobility. We also
describe the implementation and performance of I-TCP handoffs
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