Presentation 2005-01-28
A MAC Protocol for 20/40 MHz Coexistence in High Throughput Wireless LAN
Yoriko UTSUNOMIYA, Yasuyuki NISHIBAYASHI, Tetsu NAKAJIMA, Tomoya TANDAI, Tomoko ADACHI, Masahiro TAKAGI,
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Abstract(in English) IEEE 802.11-1999 Standard is widely known as a standard of WLAN and it has a number of amendments and supplements such as 802.11a, 802.11g, and 802.11i and also those under work in the current activities by the task groups (TGs). The one now attracting a great deal of attention is TGn, which is aimed at achieving high throughput. We are involved in this TGn standardization process. To achieve high throughput, MIMO technique is the main discussion point in the PHY layer in TGn. But another important point is the channel bundling method which extends the channel bandwidth from 20 MHz to 40 MHz. By doubling the channel bandwidth, the data rate can be increased. But when this channel bundling method is introduced, a question how to cope with the legacy 20 MHz stations will arise. For this problem, we are proposing to control the 20 MHz and 40 MHz STAs by setting NAV to them in the MAC layer. This report explains our coexistence proposal for the system where transmission in both 20 MHz and 40 MHz channel bandwidths is enabled. The efficiency is also examined to confirm the influence of applying our coexistence proposal.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Wireless LAN / IEEE 802.11n / 40MHz / coexistence / MAC / protocol
Paper # CS2004-197,RCS2004-304
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Committee RCS
Conference Date 2005/1/21(1days)
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Registration To Radio Communication Systems (RCS)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A MAC Protocol for 20/40 MHz Coexistence in High Throughput Wireless LAN
Sub Title (in English)
Keyword(1) Wireless LAN
Keyword(2) IEEE 802.11n
Keyword(3) 40MHz
Keyword(4) coexistence
Keyword(5) MAC
Keyword(6) protocol
1st Author's Name Yoriko UTSUNOMIYA
1st Author's Affiliation Corporate Research & Development Center, Toshiba Corporation()
2nd Author's Name Yasuyuki NISHIBAYASHI
2nd Author's Affiliation Corporate Research & Development Center, Toshiba Corporation
3rd Author's Name Tetsu NAKAJIMA
3rd Author's Affiliation Corporate Research & Development Center, Toshiba Corporation
4th Author's Name Tomoya TANDAI
4th Author's Affiliation Corporate Research & Development Center, Toshiba Corporation
5th Author's Name Tomoko ADACHI
5th Author's Affiliation Corporate Research & Development Center, Toshiba Corporation
6th Author's Name Masahiro TAKAGI
6th Author's Affiliation Corporate Research & Development Center, Toshiba Corporation
Date 2005-01-28
Paper # CS2004-197,RCS2004-304
Volume (vol) vol.104
Number (no) 599
Page pp.pp.-
#Pages 6
Date of Issue