Hi Ranjit,

Look for project ID 83 at avrfreaks.net, it might help you. It is AVR based but you can allways adopt them to 8052.

You can also refer
1. Application Note AN-401 available at www.radiotronix.com.

2. ASH Transceiver Software Designer’s Guide, ASH Transceiver Designer’s Guide at www.wirelessworldag.com

3. APPLICATION NOTE AN-00130, AN-00160, AN-00232 at LINX

4. An RF-Controlled Irrigation System by Brian Millier Issue 138 January 2002, ww.circuitcellar.com

The list is not limited to this. Some of them may not give you a readymade solution, but provide you information as how things are done.