I need research suggestions?

I am a student in the Philippines and I really need help!
We were asked by our professors to have a research on Wireless Applications and there must be a prototype.
Can someone give me a suggestion on what to do? :roll:

Firstly you could visit the website http://www.howstuffworks.com
Just go into the electronics section and then into the cell phone section. There you'll find complete info on the wireless subject. For any practical circuits you can visit http://www.allaboutcircuits.com and http://www.discovercircuits.com

already build one

in my college years...just last May 2004... :lol: my project is a pic-based Silent Security System Sending SMS alert. I thank Electro-tech-online.com and mr. nigel goodwin and the rest for their help when im doing this project.