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What kind of information? For starters, It uses standard IEEE 802.16 and uses OFDM technology. It is implemented as MAN networks which is metropolitan area networks.
there are loads of detailed info on internet.
Here's the link to wikipedia explaining wimax: https://en.wikipedia.org/wiki/WiMAX
you also should be able to find e-books in the ebooks forum of edaboard.com have fun