qos in manets using bandwidth as parameter

 hi all

  i am doing research work in qos in manets using bandwidth as parameter. do i have have to work in link layer or network layer. does i need to be protocol specific. actually i have gone through certain papers ut i totla confussed kindly help me.

Neeraj Gupta
Assistant Professor
HOD, CSE & IT Department
Hindu College of Engineering
Sonepat