Qing-jia Lin

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In cognitive radio networks, cognitive users have to detect the presence of primary users. In this paper, we exhibit the improvement in the probability of detection of an user U<inf>1</inf> by allowing other user U<inf>2</inf> to act as a relay. Assuming that users experience Rayleigh fading, and the decision statistic is the instantaneous power, at the(More)
Scaling is a general term meaning that no particular scale controls the process under study. The literature on network traffic widely agrees with a mono-scaling Gaussian self-similar traffic model at time scales larger than the round-trip time (RTT) of TCP segments in the past ten years. In this paper, an extensive wavelet analysis is performed to the TCP(More)
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