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In conventional power systems, client-server architecture and centralized control are adopted for data acquisition and supervisory control, and the speed of message transmission and the fault responses is slow. In contrast, various types of distributed energy resources (DERs) with different characteristics and of different capacities exist in a microgrid system, and client-server architecture and...
In this paper, a low overhead preamble structure is proposed for the interference approximation method — complex (IAM-C) method in offset quadrature amplitude modulation based orthogonal frequency division multiplexing (OQAM-OFDM) systems. Compared with the conventional preamble structure with three columns of symbols, the proposed preamble structure only requires two columns of symbols as the preamble...
A novel steganographic algorithm for ternay data based on ZZW construction over F_3 is proposed to improve the embedding efficiency. Contrast to the conventional ZZW construction using binary Hamming codes in the second channel, the proposed method employs ternary Hamming codes to embed the message at the second channel. For the first channel, a low rate convolutional codes is presented to enhance...
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