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Anderson-Darling (AD) sensing, characteristic function (CF) sensing and order statistic (OS) sensing are three common spectrum sensing (SS) methods based on goodness of fit (GOF) testing. However, AD and OS sensing needs the prior information of noise variance; CF and OS sensing have high computation complexity. To circumvent those difficulties, in this paper, the ratio of the mean square to variance...
For the purpose of fast tag identification in passive RFID system, an efficient grouping reservation method is proposed in this paper. A simple technique is proposed to demodulate a tag reply data packet from collision signals when part of the collision data packets information is obtained, which efficiently reduces the time slot consumption. Furthermore, reservation frame with variable length and...
This paper introduces adaptive consensus's improvement on data aggregation algorithm in WSN. In this algorithm, each node uses the average of each related sensors as a reference signal for the adaptive filter, and modifies the weighted matrix of the consensus filter according to the algorithm of the LMS adaptive filter. The simulation results demonstrate that the proposed algorithm can make better...
Capacity of MIMO-OFDM system with exponential correlation matrix and multi-path channel was researched. Based on SVD, factors of correlation coefficient and the number of multi-path and antenna were analyzed. The Monte-Carlo simulations present that capacity of MIMO-OFDM system would decrease obviously as correlation coefficient increasing in large SNR; and it would also increased with number of multipath...
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