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Because the network connection information contains nominal and linear attributes, and linear attributes are divided into continuous and discrete attributes, the network connection information is the heterogeneous data. The heterogeneous distance functions are used to cluster data in this paper. The cooperative network intrusion detection based on semi-supervised clustering algorithm is proposed....
Frequency offset estimation for an Orthogonal Frequency-Division Multiple Access (OFDMA) uplink for amplify-and-forward (AF) relays and a new type of relay (R) called decode-and-compensate-and-forward (DcF) relays are studied. Multiple relays are considered, and the relay with the best S → R channel is chosen to perform re-transmission, where S and R represent the source and relay nodes, respectively...
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