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This paper presents a MAC layer protocol, called RTMAC, for real-time data streaming in wireless sensor networks. RT-MAC eliminates need to contend for a wireless medium by potential transmitting nodes in a range by introducing feedback control packet, called Clear Channel (CC). RT-MAC maximizes spatial channel reuse by avoiding false blocking problem of RTS/CTS exchange based wireless MAC protocols...
This paper presents a comparative study of existing real-time MAC layer protocols for wireless sensor networks. Then, a new real-Time MAC protocol is presented that is based on a general purpose MAC protocol, called S-MAC. While medium access strategy in S-MAC is based on contention and back-off schemes, protocol proposed in this paper uses feedback approach as a medium access strategy. As a result...
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