IEICE TRANSACTIONS on Communications
A Camera and LED-Based Medium Access Control Scheme for Wireless LANs
Summary :
The IEEE 802.11 wireless LAN (WLAN) is based on carrier sense multiple access with collision avoidance (CSMA/CA) protocol. CSMA/CA uses a backoff mechanism to avoid collisions among stations (STAs). One disadvantage of backoff mechanisms is that STAs must wait for some period of time before transmission, which degrades spectral efficiency. Moreover, a backoff algorithm cannot completely avoid collisions. We have proposed a novel medium access control (MAC) scheme called the visual recognition-based medium access control (VRMAC) scheme, which uses an LED-camera communication technique. STAs send media-access request messages by blinking their LEDs in VRMAC scheme. An access point (AP) receives the messages via its camera, and then allocates transmission opportunities to the STAs by transmitting control frames. Since the transmission rate of the LED-camera communication is lower than WLAN transmission, the delay of access requesting causes and it could decrease the system throughput of the VRMAC system based WLAN. We reveal the effect of the delay for TCP flows and propose enhanced access procedures to eliminate the effect of the delay. Our simulation results demonstrate that VRMAC scheme increases the system throughput in UDP and TCP traffic. Moreover, the scenario-based evaluations reveal that VRMAC scheme also decreases the session delay which is a metric of quality of experience (QoE) for TCP applications.
- Publication
- IEICE TRANSACTIONS on Communications Vol.E98-B No.5 pp.917-926
- Publication Date
- 2015/05/01
- Publicized
- Online ISSN
- 1745-1345
- DOI
- 10.1587/transcom.E98.B.917
- Type of Manuscript
- PAPER
- Category
- Wireless Communication Technologies
Authors
Ryo NISHIOKA
Kyoto University
Takayuki NISHIO
Kyoto University
Masahiro MORIKURA
Kyoto University
Koji YAMAMOTO
Kyoto University
Keyword
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Ryo NISHIOKA, Takayuki NISHIO, Masahiro MORIKURA, Koji YAMAMOTO, "A Camera and LED-Based Medium Access Control Scheme for Wireless LANs" in IEICE TRANSACTIONS on Communications,
vol. E98-B, no. 5, pp. 917-926, May 2015, doi: 10.1587/transcom.E98.B.917.
Abstract: The IEEE 802.11 wireless LAN (WLAN) is based on carrier sense multiple access with collision avoidance (CSMA/CA) protocol. CSMA/CA uses a backoff mechanism to avoid collisions among stations (STAs). One disadvantage of backoff mechanisms is that STAs must wait for some period of time before transmission, which degrades spectral efficiency. Moreover, a backoff algorithm cannot completely avoid collisions. We have proposed a novel medium access control (MAC) scheme called the visual recognition-based medium access control (VRMAC) scheme, which uses an LED-camera communication technique. STAs send media-access request messages by blinking their LEDs in VRMAC scheme. An access point (AP) receives the messages via its camera, and then allocates transmission opportunities to the STAs by transmitting control frames. Since the transmission rate of the LED-camera communication is lower than WLAN transmission, the delay of access requesting causes and it could decrease the system throughput of the VRMAC system based WLAN. We reveal the effect of the delay for TCP flows and propose enhanced access procedures to eliminate the effect of the delay. Our simulation results demonstrate that VRMAC scheme increases the system throughput in UDP and TCP traffic. Moreover, the scenario-based evaluations reveal that VRMAC scheme also decreases the session delay which is a metric of quality of experience (QoE) for TCP applications.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.E98.B.917/_p
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@ARTICLE{e98-b_5_917,
author={Ryo NISHIOKA, Takayuki NISHIO, Masahiro MORIKURA, Koji YAMAMOTO, },
journal={IEICE TRANSACTIONS on Communications},
title={A Camera and LED-Based Medium Access Control Scheme for Wireless LANs},
year={2015},
volume={E98-B},
number={5},
pages={917-926},
abstract={The IEEE 802.11 wireless LAN (WLAN) is based on carrier sense multiple access with collision avoidance (CSMA/CA) protocol. CSMA/CA uses a backoff mechanism to avoid collisions among stations (STAs). One disadvantage of backoff mechanisms is that STAs must wait for some period of time before transmission, which degrades spectral efficiency. Moreover, a backoff algorithm cannot completely avoid collisions. We have proposed a novel medium access control (MAC) scheme called the visual recognition-based medium access control (VRMAC) scheme, which uses an LED-camera communication technique. STAs send media-access request messages by blinking their LEDs in VRMAC scheme. An access point (AP) receives the messages via its camera, and then allocates transmission opportunities to the STAs by transmitting control frames. Since the transmission rate of the LED-camera communication is lower than WLAN transmission, the delay of access requesting causes and it could decrease the system throughput of the VRMAC system based WLAN. We reveal the effect of the delay for TCP flows and propose enhanced access procedures to eliminate the effect of the delay. Our simulation results demonstrate that VRMAC scheme increases the system throughput in UDP and TCP traffic. Moreover, the scenario-based evaluations reveal that VRMAC scheme also decreases the session delay which is a metric of quality of experience (QoE) for TCP applications.},
keywords={},
doi={10.1587/transcom.E98.B.917},
ISSN={1745-1345},
month={May},}
Copy
TY - JOUR
TI - A Camera and LED-Based Medium Access Control Scheme for Wireless LANs
T2 - IEICE TRANSACTIONS on Communications
SP - 917
EP - 926
AU - Ryo NISHIOKA
AU - Takayuki NISHIO
AU - Masahiro MORIKURA
AU - Koji YAMAMOTO
PY - 2015
DO - 10.1587/transcom.E98.B.917
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E98-B
IS - 5
JA - IEICE TRANSACTIONS on Communications
Y1 - May 2015
AB - The IEEE 802.11 wireless LAN (WLAN) is based on carrier sense multiple access with collision avoidance (CSMA/CA) protocol. CSMA/CA uses a backoff mechanism to avoid collisions among stations (STAs). One disadvantage of backoff mechanisms is that STAs must wait for some period of time before transmission, which degrades spectral efficiency. Moreover, a backoff algorithm cannot completely avoid collisions. We have proposed a novel medium access control (MAC) scheme called the visual recognition-based medium access control (VRMAC) scheme, which uses an LED-camera communication technique. STAs send media-access request messages by blinking their LEDs in VRMAC scheme. An access point (AP) receives the messages via its camera, and then allocates transmission opportunities to the STAs by transmitting control frames. Since the transmission rate of the LED-camera communication is lower than WLAN transmission, the delay of access requesting causes and it could decrease the system throughput of the VRMAC system based WLAN. We reveal the effect of the delay for TCP flows and propose enhanced access procedures to eliminate the effect of the delay. Our simulation results demonstrate that VRMAC scheme increases the system throughput in UDP and TCP traffic. Moreover, the scenario-based evaluations reveal that VRMAC scheme also decreases the session delay which is a metric of quality of experience (QoE) for TCP applications.
ER -
English
