Performance of Transmission Control Protocol (TCP) Congestion Control Over Wireless Links Using Modified Snoop Protocol
Because of the burgeoning increase for data communication and multimedia services over wireless links, and rapid growth of wireless communications, many researches have been undertaken to find effective integrated protocols that satisfy this demands. Since wireless links normally show higher bit...
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| Main Author: | |
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| Format: | Thesis |
| Language: | English English |
| Published: |
2003
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| Online Access: | http://psasir.upm.edu.my/id/eprint/70/1/1000548975_t_FK_2003_66.pdf http://psasir.upm.edu.my/id/eprint/70/ |
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| Summary: | Because of the burgeoning increase for data communication and multimedia services
over wireless links, and rapid growth of wireless communications, many researches
have been undertaken to find effective integrated protocols that satisfy this demands.
Since wireless links normally show higher bit error rate and temporal disconnections
compared with wired links, the losses are greater, this may also be caused by the
mobility like handoff, and many wireless channel impairment errors and not just
congestion. TCP deals with packet losses by applying congestion control
mechanisms, which tends to degrade its performance.
Many protocols have been proposed including Snoop, to alleviate this problem. Our
objectives here are to study and enhance the Snoop protocol using the modified ACK
called Fake Acknowledgment under various network parameters.
iv
In this thesis, a Fake ACK technique proposed based on the Snoop Acknowledgment
procedure; this reduces the waiting time of the Fixed Host waiting for the right
Acknowledgment to be received, and hence reducing the probability of initiating
congestion control mechanism. The results show that the throughput of our technique
is increased and the losses are decreased compared to traditional Snoop protocol,
under different parameter values. |
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