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Multiple input multiple output (MIMO) and pre-coder are the effective methods to overcome the influence of the time-varying channel since it is a key factor of the communication performance. However, the existing researches of MIMO and pre-coder focus on the spectrum efficiency under the Gaussian input assumption. This drawback limits the pre-coder technology application in the green communication...
Continuous top-$k$<alternatives> <inline-graphic xlink:href="zhu-ieq1-2662236.gif"/></alternatives> query over streaming data is a fundamental problem in database. In this paper, we focus on the sliding window scenario, where a continuous top- $k$<alternatives> <inline-graphic xlink:href="zhu-ieq2-2662236.gif"/></alternatives> query returns the...
Binary Exponential Backoff (BEB) algorithm is utilized to resolve the channel contention for IEEE 802.11 wireless networks. However, BEB algorithm does not meet the user expectation due to the large collision probability and the poor network fairness when the number of stations is large. To overcome the problems, a novel synchronized contention windows-based backoff algorithm is proposed, i.e., SCW...
On the basis of online boosting algorithm, this paper presents an optimized target tracking algorithm. Now, the commonly-used tracking algorithm usually tracks the targets as a whole, thus facing great difficulty in realizing effective tracking while the target is severely shielded. In order to surmount the difficulties resulting from shielding, this paper puts forward block-based target tracking...
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