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MAC protocol is one of the key technologies of the underwater acoustic networks. In order to improve the performance, this paper puts forward a modified multiple access protocol UTRAMACA. The protocol adopts parallel transmission mode and handshaking method that are different from tradition's. By this way, it improves channel utilization rate both in space and time, and it is simulated by the Matlab...
For underwater acoustic networks, the selection of MAC (medium access control) protocols will greatly affect the performance of the system. such as throughput and end-to-end delay. The ALOHA scheme takes advantage of simplicity, but the throughput is greatly decreased in the condition of high traffic and unstable channel. In this paper, we propose an alternative random access FH-CDMA underwater acoustic...
As UWA technology develops, ad hoc applied in UWA shows ascending predominance. The physical properties of acoustic channels essentially differ from those of conventional wireless communication channels. Its unknown and complicated channel condition motives research and redesign of existed protocols of wireless networks. This paper based on the investigation of the differences between UWA ad hoc network...
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