The bilateral trade margin has been surged rapidly as cooperation over trade of agriculture products between China and countries on the silk road econom- ic belt comes closely and stands as each others＇ essential par...The bilateral trade margin has been surged rapidly as cooperation over trade of agriculture products between China and countries on the silk road econom- ic belt comes closely and stands as each others＇ essential partner, At present, however, the trade coexistence in bilateral industries that the concentration focused by markets and products is too much of the same. In light of this, sides over these countries must enhance their mutual understanding and promote more exchanges to seek tactics that can ovemome the shorthand in commercial trade,allowing win-win in the agriculture production trade.展开更多
This paper exploits an optical large multiple input multiple output(MIMO) system.We first establish the non-reciprocity compensation correction factor to solve the channel non-reciprocity problem.Then we propose an an...This paper exploits an optical large multiple input multiple output(MIMO) system.We first establish the non-reciprocity compensation correction factor to solve the channel non-reciprocity problem.Then we propose an antenna selection algorithm with the goal of realizing maximum energy efficiency(EE) when satisfying the outage EE.The simulation results prove that this non-reciprocity compensation correction factor can compensate beam energy attenuation gap and spatial correlation gap between uplink and downlink effectively,and this antenna selection algorithm can economize the number of transmit antennas and achieve high EE performance.Finally,we apply direct current-biased optical orthogonal frequency division multiplexing(DCO-OFDM) modulation in our system and prove that it can improve the bit error rate(BER) compared with on-off keying(OOK) modulation,so the DCO-OFDM modulation can resist atmospheric turbulence effectively.展开更多
基金Supported by Demonstration Base of Industry-University-Research Cooperation based Training for Postgraduate Students in the Xinjiang Uygur Autonomous Region(xjaucxyyjs-20141019)~~
文摘The bilateral trade margin has been surged rapidly as cooperation over trade of agriculture products between China and countries on the silk road econom- ic belt comes closely and stands as each others＇ essential partner, At present, however, the trade coexistence in bilateral industries that the concentration focused by markets and products is too much of the same. In light of this, sides over these countries must enhance their mutual understanding and promote more exchanges to seek tactics that can ovemome the shorthand in commercial trade,allowing win-win in the agriculture production trade.
基金supported by the Jinlin Provincial Science&Technology Department of China(No.20130413052GH)
文摘This paper exploits an optical large multiple input multiple output(MIMO) system.We first establish the non-reciprocity compensation correction factor to solve the channel non-reciprocity problem.Then we propose an antenna selection algorithm with the goal of realizing maximum energy efficiency(EE) when satisfying the outage EE.The simulation results prove that this non-reciprocity compensation correction factor can compensate beam energy attenuation gap and spatial correlation gap between uplink and downlink effectively,and this antenna selection algorithm can economize the number of transmit antennas and achieve high EE performance.Finally,we apply direct current-biased optical orthogonal frequency division multiplexing(DCO-OFDM) modulation in our system and prove that it can improve the bit error rate(BER) compared with on-off keying(OOK) modulation,so the DCO-OFDM modulation can resist atmospheric turbulence effectively.
