Harshal,
Is this Wireless Mesh same as the WiMAX word which is going around HOT these days?
Umm Wireless Mesh would work on 802.11b/g (2.4Ghz) band, and usually has a very small range (which is why mesh needs to be done)
But, WiMAX on other side has a larger range (depending upon equipment used, it would give range upto 75 kms as well) This technology is very expensive at the moment to deploy, but has an excellent potential to outrun CDMA, GSM, WiFI everything (since it can beam speed in MBps for distant locations, this means you can see streaming videos over wireless)
You can read more of this stuff on http://www.wimax.com/education
Thanks & Regards, Mitul Limbani, Founder & CEO, Enterux Solutions, The Enterprise Linux Company (R), www.enterux.com