QoS-DRMR: QoS Multicast Rounting Procotol for Ad Hoc Network
QoS-DRMR：Ad Hoc网络中有QoS约束的组播协议

Recently the research of multicast routing protocols for Ad hoc network has attracted extensive attention.The QoS (Quality of Service)is one of the key technique of Ad hoc network.By far,many multicast routing protocols for Ad hoc have been proposed,including DRMR (Dynamic Ring Based Multicast Routing Protocol for Ad hoc Net- works).DRMR has a high data packet delivery ratio and good scalability,basing on the decreasing of control cost.But DRMR didn't take account of the QoS.According to the multiple objects inhibiting precondition,the paper presents a routing algorithm which guarantees the minimal bandwidth request and optimizes the delay and the lost rate whole.The new protocol is called QoS-DRMR.It is simulated and evaluated with NS2.The result of simulation shows that QoS- DRMR can improve the multicast service at the multiple objects inhibiting precondition.