Computer controlled robot.. pls help

hi..
i am trying to make a robot that can be controlled via computer.. i have written a matlab code that can transmit two bit binary data to the serial port.. i how to transmit the data to the microcontroller on board the bot.. can anyone help me pls..

PS. I am allowed to use only UHF transceiver for transmission..

Thank you in advance..

Try with a pair of XBee, Digi International - Making Wireless M2M Easy

Take a look at this tutorial.

XBee Configuration Tutorial - Tellart [stream]

Cheers