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This paper introduces two important enhancements to the IEEE 802.11 medium access control (MAC) protocols which are not considered in the current IEEE 802.11 MAC protocol: the channel state between the transmitter and the receiver and the node queue state. Our objective is to characterize the impact of these parameters on medium access regulation, and ultimately rely on them in order to enhance the...
In this paper, we analyze the throughput performance of a new access protocol, called Cooperative Access with Relay's Data (CARD) for multi-rate wireless local area networks (WLANs). CARD allows remote source nodes to transmit their information at a higher data rate to Access Point (AP) by using intermediate nodes as relays, particularly, a relay node sends its own data packet after forwarding a packet...
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