Abstract:
Network performance degradation due to
congestion is a major problem in the Internet. This
performance degradation is mainly due to the uncoordinated
interaction of congestion control mechanism of the TCP and
that of the underlying network. Another challenging problem
is that TCP cannot achieve fair bandwidth allocation among
competing TCP traffics. In this paper, we propose a Fair
Intelligent Congestion Control Resource Discovery (FICCRD)
mechanism that can improve end-to-end TCPperformance by
controlling the congestion and allocating fair share of
bandwidth among competing TCP traffICS.The key ideas of
FICCRD are to integrate available network resources in
estimating connections' fair share of network resource; to
create feedbadc control loops between edge routers; to
introduce a protocol whereby a special Resource Discovery
(RD) packet is employed to coUectand convey en route router
state information: and to employ inteUigent algorithms to
match a connection's TCP sending rate to the rate at which
the underlying network can support Simulation results show
that the mechanism can signi[lCQntlyimprove in throughput,
fairness, and packet loss rate for TCP connections. More
importantly, the mechanism is transparent to TCP and
requires no modifications to current TCP implementations.
