[ns] how to simulate one stop wireless network, disable other routing protocols

[Shen Ren]

Hi All,
	How to simulate one stop wireless network? 
	I do not need any other routing protocols. However, in the
wireless network simulation configuration, there is option like:
	-adhocRouting....

	I only want the direct communication from the Base station to
the mobile nodes. I do not know what I could specify here. 

Thanks and Regards,

Shen Ren