The application of low complexity and low order robust regression algorithm in channel estimation with 16QAM over fading channel for DS-CDMA is presented in this paper After initial channel estimation with classical m...The application of low complexity and low order robust regression algorithm in channel estimation with 16QAM over fading channel for DS-CDMA is presented in this paper After initial channel estimation with classical methods, channel gains estimated are filtered by linear or conic regression algorithm within a given regression length Simulation results show that this method offers up to 0,3 dB gain in a DS-CDMA system. The length and order of regression algorithm are two key parameters, which affect the system performance significantly and the optimal values of which depend on the speed of mobile station. It is demonstrated that this improved method can track fading channel accurately and outperforms over classical methods substantially by selecting appropriate parameters of regression algorithm under a certain channel environment.展开更多
We designed boron-doped nanocrystalline diamond microelectrode arrays（BNCD-MEAs） with 16 channels for the bioanalysis of multicellular samples, which could be readily adapted for a highly sensitive detection of H2 O...We designed boron-doped nanocrystalline diamond microelectrode arrays（BNCD-MEAs） with 16 channels for the bioanalysis of multicellular samples, which could be readily adapted for a highly sensitive detection of H2 O2[2_TD$IF]released from stimulated cells by ascorbic acid（AA）. Our observations demonstrated that the as-prepared diamond microelectrode arrays could be utilized to distinguish cancer cells from normal cells, and the amperometric study showed the considerable differences in the currents, indicating that the related Hep G2 cancer cells could release more H2 O2 than that of L02 normal cells. This supports the possibility to use diamond-based MEAs for rapid cancer cell detection in future clinic applications.展开更多
文摘The application of low complexity and low order robust regression algorithm in channel estimation with 16QAM over fading channel for DS-CDMA is presented in this paper After initial channel estimation with classical methods, channel gains estimated are filtered by linear or conic regression algorithm within a given regression length Simulation results show that this method offers up to 0,3 dB gain in a DS-CDMA system. The length and order of regression algorithm are two key parameters, which affect the system performance significantly and the optimal values of which depend on the speed of mobile station. It is demonstrated that this improved method can track fading channel accurately and outperforms over classical methods substantially by selecting appropriate parameters of regression algorithm under a certain channel environment.
基金financially supported by the National High Technology Research and Development Program of China (No. 2015AA020502)the National Natural Science Foundation of China (Nos. 81325011, 21175020, 21327902)+3 种基金the Fundamental Research Funds for the Central Universities of China (No. 2242016K41023)the Project "Strategic Partnerships U5" of Ulm University, Ulm, Germanyfunded by the German Academic Exchange Service (DAAD)the German Ministry for Education and Research (BMBF)
文摘We designed boron-doped nanocrystalline diamond microelectrode arrays（BNCD-MEAs） with 16 channels for the bioanalysis of multicellular samples, which could be readily adapted for a highly sensitive detection of H2 O2[2_TD$IF]released from stimulated cells by ascorbic acid（AA）. Our observations demonstrated that the as-prepared diamond microelectrode arrays could be utilized to distinguish cancer cells from normal cells, and the amperometric study showed the considerable differences in the currents, indicating that the related Hep G2 cancer cells could release more H2 O2 than that of L02 normal cells. This supports the possibility to use diamond-based MEAs for rapid cancer cell detection in future clinic applications.
