Wireless networks have long suffered from
congestion. It occurs when source node transmits the data at
a rate greater than that of a network device can
accommodate. It causes the buffer on such devices to fill up
and possibly overflow. It results in loss of packets. Most of
the Routing protocols which are currently in use are not
congestion Adaptive. Existing congestion control schemes
treat congestion as an individual problem and propose ad
hoc solution that is dissatisfied. Routing should not be aware
of, but also be adaptive to network congestion. Adaptation to
the congestion helps to increase both the effectiveness and
efficiency of routing. These problems are solved by the
congestion-aware routing protocols in certain degree. These
protocols which are adaptive to congestion status of mobile
ad-hoc network can greatly improve the network
performance. Further it allows a network to operate in the
region of low delay and high throughput. This survey paper
concentrates on congestion detection and congestion
avoidance.
B. Rajasekaran : Research scholar, Dept of ECE, St Peters University,
Chennai, Tamilnadu, India
Dr. C. Arun : Professor, Dept of ECE, R.M.K. College of Engineering & Technology,
Chennai Tamilnadu, India
Congestion Control
Transmission Control
Protocol
Active Queue Management
Congestion Avoidance
As the congestion control is the most important factor of
any packet switching network, the whole performance and
accuracy of network is directly related to it, the congestion
control becomes more important. We briefly survey of
various congestion control algorithms. It shows that at
present there is no single algorithm that can resolve every
problems of congestion control on computer networks.
Further research work is needed in this direction.
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