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In this paper, we propose a method to analyze epileptic electroencephalogram based on time series that is transformed from improved k-nearest neighbor network. The study of complex networks has become a hot research of electroencephalogram signal. Electroencephalogram time series generated by the network keeps node information of network, so researching the time series from the network can also achieve...
The traditional beamforming in MIMO-OFDM systems uses the subcarriers characterized by the largest eigenvalues to transmit the OFDM block symbols. In contrast to the previous one, the optimal beamforming in MIMO-OFDM systems use the N best subchannels in all optional orthogonal subchannels. But when feedback from receiver delays, the optimal beamforming in MIMO-OFDM will appear self- interference...
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