[ns] Are there any documents for multi-channel assignment with single radio

[CHENG Yong]

Dear all,
    Are there any documents for simulating in multi-channel assignment with 
single radio, many algorithms make simulation for this by Qualnet. 
However,Qualnet is not for free. I hope someone can give me some documents for 
simulating in multi-channel assignment with single radio. Thank you.
Best wishes.
                                           CHENG Yong
                                               11.16