Abstract
Researchers have used extensive simulation and
experimental studies to understand TCP performance in adhoc
wireless networks. In contrast, the objective of this paper is to
theoretically analyze TCP performance in this environment. By
examining the case of running one TCP session over a string
topology, a system model for analyzing TCP performance in
adhoc wireless networks is proposed, which considers packet
buffering, nodes’ contention for access to the wireless channel,
and spatial reuse of the wireless channel. Markov chain modelling
is applied to analyze this system model. Analytical results show
that when the number of hops that the TCP session crosses is
fixed, the TCP throughput is independent of the TCP congestion
window size. When the number of hops increases from one,
the TCP throughput decreases first, and then stabilizes when
the number of hops becomes large. The analysis is validated by
comparing the numerical and simulation results.
experimental studies to understand TCP performance in adhoc
wireless networks. In contrast, the objective of this paper is to
theoretically analyze TCP performance in this environment. By
examining the case of running one TCP session over a string
topology, a system model for analyzing TCP performance in
adhoc wireless networks is proposed, which considers packet
buffering, nodes’ contention for access to the wireless channel,
and spatial reuse of the wireless channel. Markov chain modelling
is applied to analyze this system model. Analytical results show
that when the number of hops that the TCP session crosses is
fixed, the TCP throughput is independent of the TCP congestion
window size. When the number of hops increases from one,
the TCP throughput decreases first, and then stabilizes when
the number of hops becomes large. The analysis is validated by
comparing the numerical and simulation results.
Original language | English |
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Title of host publication | IEEE GLOBECOM 2005 Proceedings |
Publisher | Institute of Electrical and Electronics Engineers (IEEE) |
Pages | 2714-2719 |
ISBN (Print) | 9-7803-9415-1 |
Publication status | Published - 2005 |