A novel Cross-layer Quality-of-Service Model for Mobile Ad Hoc Networks

The divided-layer protocol architecture for Mobile Ad hoc Networks (simply MANETs) can only provide partial information exchange for different layers in the protocol stack. This leads to great difficulties in QoS guarantee of multimedia communication in MANETs. To improve QoS of multimedia information transmission in MANETs, this paper proposes A Cross-layer QoS Model for MANETs, CQMM. In CQMM, a core component was added, Network Status Repository (NSR), which was the center of information exchange and share among different protocol layers in the stack. At the same time, CQMM carried out all kinds of unified QoS controls. It is advantageous that CQMM avoids redundancy functions among the different protocol layers in the stack and performs effective QoS controls and overall improvements on the network performances.