Quadrature Spatial Modulation (QSM) is a high spectral efficiency Multiple-Input Multiple Output (MIMO) technique used to improve the spectral efficiency of wireless communication systems. The main concept of QSM is t...Quadrature Spatial Modulation (QSM) is a high spectral efficiency Multiple-Input Multiple Output (MIMO) technique used to improve the spectral efficiency of wireless communication systems. The main concept of QSM is to extend the spatial constellation of the conventional Spatial Modulation (SM) in both the in-phase and quadrature components of the data symbol. In this paper, because QSM-based on Interleaxdng Division Multiplexing (IDM) has not been introduced in the literature as a multiple antenna system, we introduced a novel scheme, called QSM system based on Interleaving Division Multiplexing (QSM-IDM). The antenna sets are also applied to a spreader, before being used to assign an antenna number for information transmission. Analysis and simulations for a flat fading channel show that the proposed QSM-IDM method significantly outperforms the original QSM system with the same data rate, while maintaining a relatively acceptable complexity. The obtained simulation results show that the conducted analysis yields significant improvements for the accuracy of the proposed scheme, with satisfactory complexity.展开更多
本文采用血流变学研究了清栓酶预防治疗44例 TIA 患者,并对预防3年的效果进行了分析.其中发现首次疗前血流变值与健康人(ηP、RCT 除外)相比,差异显著(P<0.05或P<0.01).疗后差异不显著(P>0.05).疗前疗后相比差异显著(P<0.05...本文采用血流变学研究了清栓酶预防治疗44例 TIA 患者,并对预防3年的效果进行了分析.其中发现首次疗前血流变值与健康人(ηP、RCT 除外)相比,差异显著(P<0.05或P<0.01).疗后差异不显著(P>0.05).疗前疗后相比差异显著(P<0.05)。用清栓酶每6个月预防治疗一次,血流变值与首次相比约下降50%～60%左右,而每年(12个月)预防治疗一次约下降30%～35%左右,其中治疗间歇时间一样,同年度血流变的值(ηP、RCT 除外)相比差异不显著(P>0.05),而治疗间歇时间不一样(6、12个月)同年度相比差异显著(P<0.05或 P<0.01).从而证实了清栓酶不但是治栓的佳药,也是防栓的良药,本文认为中、老年人预防脑中风,最好每年用清栓酶2次以上,才能提高预防效果.展开更多
文摘Quadrature Spatial Modulation (QSM) is a high spectral efficiency Multiple-Input Multiple Output (MIMO) technique used to improve the spectral efficiency of wireless communication systems. The main concept of QSM is to extend the spatial constellation of the conventional Spatial Modulation (SM) in both the in-phase and quadrature components of the data symbol. In this paper, because QSM-based on Interleaxdng Division Multiplexing (IDM) has not been introduced in the literature as a multiple antenna system, we introduced a novel scheme, called QSM system based on Interleaving Division Multiplexing (QSM-IDM). The antenna sets are also applied to a spreader, before being used to assign an antenna number for information transmission. Analysis and simulations for a flat fading channel show that the proposed QSM-IDM method significantly outperforms the original QSM system with the same data rate, while maintaining a relatively acceptable complexity. The obtained simulation results show that the conducted analysis yields significant improvements for the accuracy of the proposed scheme, with satisfactory complexity.
