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For a higher transmission rate and a greater throughput, New Generation Ultra High Speed WLAN must introduce Cognitive Radio (CR) technology to enhance frequency spectrum utilization. To detect the channel, this paper using two spectrum sensing algorithms, energy detection and preamble detection. The former utilizes the energy in signal to detect; the latter utilizes some features of the signal in...
In this paper, we present a new spectrum-hole prediction model for cognitive radio (CR) systems based on the IEEE 802.11 wireless local areas networks. We have also analyzed the distribution of interval between two consecutive packets (ITCP) based on a simple two-user network. For multiuser networks, we have investigated the distribution of ITCP and study its characteristics using Bayesian inference...
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