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Third Generation (3G) cellular networks take advantage of time-varying and location-dependent channel conditions of mobile users to provide broadband services. Under fairness and QoS constraints, they use opportunistic scheduling to efficiently utilize the available spectrum. Opportunistic scheduling algorithms rely on the collaboration among all mobile users to achieve their design objectives. However,...
As one type of stealthy and hard-to-detect attack, low-rate TCP-targeted DDoS attack can seriously throttle the throughput of normal TCP flows for a long time without being noticed. The Power Spectral Density (PSD) analysis in frequency domain can detect this type of attack accurately. However, computational complexity of PSD analysis makes it impossible for software implementation at high speed network...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.