| Paper Abstract and Keywords |
| Presentation |
2005-07-21 17:00
Performance Improvement of TCP using Premature ACK Transmission
Shigeyuki Osada, Tokumi Yokohira, Kiyohiko Okayama, Nariyoshi Yamai (Okayama Univ.) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
In order to improve TCP performance,
a method using a PEP (Performance Enhancing Proxy) is proposed.
In the method,
the PEP is located in a intermediate router along a TCP connection.
When a data packet arrives at the PEP,
it forwards the packet,
stores the copy of the packet into its own buffer (PEP buffer),
and returns the corresponding ACK (premature ACK)
in behalf of the destination host.
In this paper,
under the strategy which keeps
the number of the packets in the PEP buffer
for which premature ACKs have been returned
being less than or equal to a fixed threshold value (watermark value),
we investigate the relation
between the watermark value and the maximum throughput.
Simulation results show that
(i) when there exist the upper and lower bounds of the watermark value
at which the maximum throughput becomes maximum,
the both bounds increase
for the increase of the propagation delay in the input side network of the PEP,
and the upper bound increases and the lower bound decreases
for the increase of the propagation delay in the output side network of the PEP,
(ii) when there exists the lower bound only,
the bound increases (decreases)
for the increase of the propagation delay in the input (output) side network.
We also show that
when the watermark value is greater than the upper bound,
the larger the PEP buffer capacity is,
the smaller the decreasing ratio of the maximum throughput is. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
TCP / PEP / Premature ACK / watermark / / / / |
| Reference Info. |
IEICE Tech. Rep., vol. 105, no. 195, NS2005-67, pp. 25-28, July 2005. |
| Paper # |
NS2005-67 |
| Date of Issue |
2005-07-14 (NS) |
| ISSN |
Print edition: ISSN 0913-5685 |
| Download PDF |
|
| Conference Information |
| Committee |
NS RCS |
| Conference Date |
2005-07-21 - 2005-07-22 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
Okayama Univ.(Tsushima Campus) |
| Topics (in Japanese) |
(See Japanese page) |
| Topics (in English) |
Mobile Networks, Mobile IP, Wireless Communication, etc. |
| Paper Information |
| Registration To |
NS |
| Conference Code |
2005-07-NS-RCS |
| Language |
Japanese |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
Performance Improvement of TCP using Premature ACK Transmission |
| Sub Title (in English) |
|
| Keyword(1) |
TCP |
| Keyword(2) |
PEP |
| Keyword(3) |
Premature ACK |
| Keyword(4) |
watermark |
| Keyword(5) |
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| Keyword(6) |
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| Keyword(7) |
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| Keyword(8) |
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| 1st Author's Name |
Shigeyuki Osada |
| 1st Author's Affiliation |
Okayama University (Okayama Univ.) |
| 2nd Author's Name |
Tokumi Yokohira |
| 2nd Author's Affiliation |
Okayama University (Okayama Univ.) |
| 3rd Author's Name |
Kiyohiko Okayama |
| 3rd Author's Affiliation |
Okayama University (Okayama Univ.) |
| 4th Author's Name |
Nariyoshi Yamai |
| 4th Author's Affiliation |
Okayama University (Okayama Univ.) |
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| Speaker |
Author-1 |
| Date Time |
2005-07-21 17:00:00 |
| Presentation Time |
20 minutes |
| Registration for |
NS |
| Paper # |
NS2005-67 |
| Volume (vol) |
vol.105 |
| Number (no) |
no.195 |
| Page |
pp.25-28 |
| #Pages |
4 |
| Date of Issue |
2005-07-14 (NS) |
|