Dongwoon Hahn wrote: > 802.11g which is the extension of 802.11b also defines MAC layer > specification. For instance, 802.11g requires sending CTS frame before > transmissions where 11b stations are detected(CTS-to-self).
You are correct and I should have clarified this. However, the independent nature of the MAC and the PHY standards still stand. Note that 802.11g does not define any new MAC layer technology. It only defined a new use for something that was already defined in the standard. The original MAC standard defines an optional RTS-CTS frame exchange before a data frame to reserve the channel. What 802.11g did was to re-use this same mechanism and change it slightly to reserve the channel when older 802.11b devices are present. This is very different than the extensive MAC changes proposed in 802.11e (QoS) or 802.11i (Security) that re-define the fundamentals of the MAC layer. Thanks for the correction which allowed me to clarify the special case of 802.11g. Regards, Harshal ------------------------ Yahoo! Groups Sponsor --------------------~--> Make a clean sweep of pop-up ads. Yahoo! Companion Toolbar. Now with Pop-Up Blocker. Get it for free! http://us.click.yahoo.com/L5YrjA/eSIIAA/yQLSAA/5AhqlB/TM --------------------------------------------------------------------~-> ******* Wireless LAN Weblog - WLAN Forum http://www.wireless--lan.com/ Wireless LAN Search http://search.freefind.com/find.html?id=6750665 Wireless LAN Jobs - WLAN Jobs http://groups.yahoo.com/group/wlanjobs/ http://www.azhttp.com/ <a href="http://www.azhttp.com/";> Arizona High Tech Talent Partnership</a> http://www.science-fairs.com/ <a href="http://www.science-fairs.com/";> Science Fairs</a> If you got this from someone else you can join at http://groups.yahoo.com/group/wirelesslan/ or mailto:[EMAIL PROTECTED] To unsubscribe: mailto:[EMAIL PROTECTED] Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/wirelesslan/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
