Abstract: Real-time traffic transmission over wireless Ad hoc networks requires authentic and reliable QoS assurance from wireless network protocols, which is not available from most of the current MAC protocols. Considering the periodicity of real-time traffic, a MAC protocol based on multipl}step channel reservation mechanism was proposed, which guarantees more reliable transmission for real-time frames. Simulation results and analysis obviously indicate that the protocol raises the network performance to a more excellent level.

Key words: Multiple-step reservation, MAC protocol, Ad hoc, QoS