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We consider a Machine-to-Machine (M2M) network where a large number of user nodes (STAs) communicate with a Data Collector (DC). We consider the case where all the user nodes periodically transmit their data packets to the DC and the network is in saturation. Recently protocols based on Frame Slotted Aloha (FSA) have been shown to be suitable as MAC protocols for M2M data collection networks under...
In this paper we study the role of control/status channel in MAC protocol of cognitive radio networks. To this end we consider three channel access schemes of IEEE 802.11 DCF namely (i) the Basic Access mechanism that uses no control channel and (ii) RTS-CTS mechanism, that uses a control channel for contention and (iii) cooperative Basic Access scheme that uses a dedicated channel for status update...
In this letter, we devise a novel order statistics based technique to derive the exact expression for the throughput of pure ALOHA in a channel that supports Multi-Packet Reception (MPR). Our technique is general and can also be used in the analysis of other unslotted MAC protocols. Our analytical results are verified using simulations.
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