Paper Abstract and Keywords |
Presentation |
2014-09-11 10:15
Experimental Evaluation of Frame Collision Reduction Method for IEEE802.11 Wireless LAN System Akira Kishida, Masashi Iwabuchi, Toshiyuki Shintaku, Takeshi Onizawa, Tetsu Sakata (NTT) CQ2014-42 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
The IEEE 802.11 distributed coordinated function (DCF) adopts carrier sense multiple access with collision avoidance (CSMA/CA) as its medium access control (MAC) protocol. CSMA/CA forces wireless local area network (WLAN) stations (STAs) to wait for the random backoff time prior to each frame transmission attempt. However, the more the number of competing STAs increases, the more the probability of the collision increases. Therefore, in congested situation by WLAN STAs, the performance of WLAN system is significantly degraded as the number of competing STAs increases. We have proposed a simple but effective method that enables to decrease collision probability. The proposed method refrains from consecutive transmission and waits for a certain period if previous transmission succeeded. This mechanism can lessen the number of competing STAs and reduce probability of frame collisions. At this point, the length of this waiting period affects the effect of collision reduction and the length of unnecessary overhead time. The effectiveness of the proposed method was measured through experiments. The system throughput characteristic against the length of waiting time and the number of STAs were verified. The experiments verified that the proposed method is able to obtain up to over 20% higher system throughput characteristic compared to the case in which the proposed method is not introduced when the number of stations in a network is 19. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
IEEE802.11 / CSMA/CA / IFS / HEW / Dense / Collision Reduction / / |
Reference Info. |
IEICE Tech. Rep., vol. 114, no. 209, CQ2014-42, pp. 19-24, Sept. 2014. |
Paper # |
CQ2014-42 |
Date of Issue |
2014-09-04 (CQ) |
ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |
Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
Download PDF |
CQ2014-42 |
Conference Information |
Committee |
MoNA CQ |
Conference Date |
2014-09-11 - 2014-09-12 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
|
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
|
Paper Information |
Registration To |
CQ |
Conference Code |
2014-09-MoNA-CQ |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Experimental Evaluation of Frame Collision Reduction Method for IEEE802.11 Wireless LAN System |
Sub Title (in English) |
|
Keyword(1) |
IEEE802.11 |
Keyword(2) |
CSMA/CA |
Keyword(3) |
IFS |
Keyword(4) |
HEW |
Keyword(5) |
Dense |
Keyword(6) |
Collision Reduction |
Keyword(7) |
|
Keyword(8) |
|
1st Author's Name |
Akira Kishida |
1st Author's Affiliation |
Nippon Telegraph and Telephone (NTT) |
2nd Author's Name |
Masashi Iwabuchi |
2nd Author's Affiliation |
Nippon Telegraph and Telephone (NTT) |
3rd Author's Name |
Toshiyuki Shintaku |
3rd Author's Affiliation |
Nippon Telegraph and Telephone (NTT) |
4th Author's Name |
Takeshi Onizawa |
4th Author's Affiliation |
Nippon Telegraph and Telephone (NTT) |
5th Author's Name |
Tetsu Sakata |
5th Author's Affiliation |
Nippon Telegraph and Telephone (NTT) |
6th Author's Name |
|
6th Author's Affiliation |
() |
7th Author's Name |
|
7th Author's Affiliation |
() |
8th Author's Name |
|
8th Author's Affiliation |
() |
9th Author's Name |
|
9th Author's Affiliation |
() |
10th Author's Name |
|
10th Author's Affiliation |
() |
11th Author's Name |
|
11th Author's Affiliation |
() |
12th Author's Name |
|
12th Author's Affiliation |
() |
13th Author's Name |
|
13th Author's Affiliation |
() |
14th Author's Name |
|
14th Author's Affiliation |
() |
15th Author's Name |
|
15th Author's Affiliation |
() |
16th Author's Name |
|
16th Author's Affiliation |
() |
17th Author's Name |
|
17th Author's Affiliation |
() |
18th Author's Name |
|
18th Author's Affiliation |
() |
19th Author's Name |
|
19th Author's Affiliation |
() |
20th Author's Name |
|
20th Author's Affiliation |
() |
Speaker |
Author-1 |
Date Time |
2014-09-11 10:15:00 |
Presentation Time |
20 minutes |
Registration for |
CQ |
Paper # |
CQ2014-42 |
Volume (vol) |
vol.114 |
Number (no) |
no.209 |
Page |
pp.19-24 |
#Pages |
6 |
Date of Issue |
2014-09-04 (CQ) |
|