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The Korkine—Zolotareff (KZ) reduced basis is considered as the best reduced basis for use in data decoding in multiple-input multiple-output (MIMO) communication systems. In this paper, we present an improved KZ algorithm for direct application in reducing a complex lattice basis. The enumeration algorithm, which is the dominant contributor to the main cost of the KZ algorithm, is also modified for...
Based on the well known Lenstra Lenstra Lovász (LLL) algorithm, we propose a possible swap LLL algorithm (P-SLLL) for lattice reduction aided (LRA) MIMO detection in this paper. The reduction process of the new algorithm is modified by searching for the next column swap through the whole basis, instead of the sequential implementation in the original LLL algorithm. Two different searching criteria...
We propose a variant of the well-known Lenstra, Lenstra, Lovász algorithm (LLL) for MIMO detection in this paper, which is called random selection LLL (RSLLL). Not like the original LLL algorithm which sequentially searches through the whole basis, the new algorithm takes a random selection of the next pair of columns for LLL reduction. The proposed algorithm is proved to finish within finite number...
Negative selection mechanism in virus detection model is improved by optimizing the configuration of variable radius detector in this paper. The radius of the detector is configured automatically, and the contradiction between the number of detectors and its detection range is resolved. The immune system has better adaptability and dynamic in this paper.
The diversification and intelligent of hackerspsila attacks makes it hard for single intrusion detection measure to attain favorable detection result. Therefore, it becomes one of the new hot spots in current research that how to combine multiple security measures to provide the network system more effective protection. A new computer information security protection system based on data fusion theory...
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