Given below are a few links that deal with OFDM, wireless communications, MATLAB, etc. This list is by no means exhaustive, but will give you a quick jumpstart to whet your interest in this exciting field.
OFDM Links=====>
OFDM Forum : www.ofdm-forum.org
SSS Magazine: www.sss-mag.com/ofdm.html
Flash OFDM : www.cellular.co.za/flash-ofdm.htm
Michael Speth's OFDM Page: http://www.ert.rwthaachen.de/Personen/speth.html
Multi-carrier Modulation and OFDM: http://www.eecs.berkeley.edu/~linnartz/issue.html
Online OFDM multimedia tutorial: http://wireless.per.nl/telelearn/ofdm/
Palowireless: www.palowireless.com/ofdm
Online OFDM tutorial : http://www.ee.ed.ac.uk/~acmc/OFDMTut.html
MATLAB Links =====>
Resources on MATLAB are very popular on the web. One can find MATLAB tutorials or help files in the websites of almost all universities that have an electrical dept. A few are listed below.
The Mathworks (makers of MATLAB) resource page: Huge collection of m-files and answers to FAQs. http://www.mathworks.com/support/index.shtml
Utah University: http://www.math.utah.edu/lab/ms/matlab/matlab.html
Univ. of Calgary: Has the entire MATLAB heldesk on its site. http://www.ucalgary.ca/~appinst/doc/matlabhelp/helpdesk.html
MATLAB Primer by Dr.Kermit Sigmon : The original hugely popular tutorial's 4th edition can be downloaded for free from here itself . Its 5th edition is no more free and can be bought as a full book. Nevertheless, a very useful resource for getting one started on MATLAB. This is a postscript file which can be directly printed onto a postscript printer or converted to other formats. Conversion can be done through Ghostscript. Download the ps file here.
MATLAB Links: http://www.glue.umd.edu/~nsw/ench250/matlab.htm