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In this paper, a novel cluster based adaptive MAC protocol for wireless sensor networks (WSN) is proposed, which is based on clustering network topology. In the proposed MAC protocol, sensor nodes can adjust the duty cycle freely according to traffic information collected by cluster head node. Meanwhile, by exploiting cross-layer routing information, sensor nodes can reduce the active period if no...
As a classic protocol based on the MAC protocol in wireless sensor networks, the S-MAC protocol has been arousing the people's widespread interests. According to the S-MAC data frame structure and signaling characteristics, this paper puts forward a blast-off power control mechanism based on S-MAC; modifies the competitive mechanism of the S-MAC protocol, and provides the protection to the nodes with...
This paper introduces I-MAC, a new medium access control protocol for wireless sensor networks. I-MAC targets at improving both channel utilisation and energy efficiency while taking into account traffic load for each sensor node according to its role in the network. I-MAC reaches its objectives through prioritized and adaptive access to the channel. I-MAC performances obtained through simulations...
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