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The authors propose the novel concept of cooperation for deafness prevention in directional antenna ad hoc networks, along with a low-complexity multiuser detector specialised for these systems. They call a generic MAC protocol that uses these techniques a Cooperative-MAC (CMAC) and they define an upper and a lower bound on the performance of this class of protocols. Several simulations compare these bounds against the Circular RTS/CTS protocol (CRCM), which is one of the finest deafness-suppression systems proposed so far, and show that their combined techniques achieve significant gains over CRCM in terms of throughput and energy consumption.
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