A major problem with leveraging event-driven, packet-level simulation environments, such as ns2 [15] , J-Sim [1], Op-Net [3]), and QualNet [4]), in conducting wireless network simulation is the vast number of events generated, a majority of which are related to signal transmission. Due to the broadcast nature of a wireless channel, transmission of a signal has to be received and processed by all nodes operating on the same channel (and neighboring channels if co-channel interference is taken

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... o account). This implies that one signal transmission event will trigger numerous signal arrival notification events. with the fact that there is no need to re-design the channel model for each specific MAC layer, and the modification made in the MAC/PHY layer is quite modest (e.g., a few API changes), makes RCM a light-weight candidate mechanism for expediting wireless network simulation.