Mobile Ad Hoc Networks: A Comparative Study of QoS Routing Protocols
  This Article presents a thorough overview of QoS routing metrics, resources and factors affecting performance of QoS routing protocols. The relative strength, weakness, and applicability of existing QoS routing protocols are also studied and compared. QoS routing protocols are classified according to the QoS metrics used type of QoS guarantee assured. 
Sanjeev Gangwar, Saurabh Pal and Krishan Kumar
cs.NI