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This paper proposes a Bayesian detector for spectrum sensing in a multi-antenna cognitive radio (CR) network in which no channel state information (CSI) is available. The Bayesian approach for detection necessitates a prior distribution of the CSI in terms of the spatial covariance matrix, and unfortunately it is often improper and cannot be applied directly. We shall introduce the use of the Fractional...
In this paper we present CAT Record - a real time computer forensics agent that records computer activity for subsequent forensic investigation on a Windows computer system as actions are taking place on a system. This approach is different from the traditional post-mortem approach of examining a hard disk since activities are being recorded as they are happening. The prototype agent included six...
Intrusion detection (ID) is an interesting approach that could be used to improve the security of network systems. IDS detects suspected patterns of network traffic on the remaining open parts through monitoring user activities (runtime gathering of data from system operations), and the subsequent analysis of these activities. The purpose of this work is to contribute ideas of finding a solution to...
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