ID 原文 译文
17955 随后，基于信道估计结果对宏基站、微基站的下行数据与噪声信号的预编码矩阵进行设计，并推导了此种情形下系统安全速率的表达式。 Then, based on the channel estimation results, the precoding matrix of downlink data and noise signals of macro base station and micro base station are designed, respectively.The expression of system security rate in this case is derived;
17956 然后，以系统安全速率最大化为目标对基站的下行数据与噪声信号的发送功率进行优化设计，并提出一种基于1维线性搜索的求解方法。 After that, for maximizing the system security rate, the transmission power of downlink data and noise signal of base station are optimized, and a solution method based on one-dimensional linear search is proposed.
17957 进一步地，考虑窃听者在发送上行导频干扰后，继而发送噪声干扰用户下行通信的情形，提出一种基于离散零和博弈方法来获取最优的发送功率设计。 Furthermore, considering thesituation that the eavesdropper sends the uplink pilot interference and then sends the noise to interfere with thedownlink communication of the legitimate user, a discrete zero-sum game method is proposed to obtain theoptimal transmission power design.
17958 仿真结果验证了所提方案的安全性和鲁棒性。 The simulation results verify the security and robustness of the proposedscheme.
17959 该文提出一种适用于超宽带MIMO稀疏阵列的Kirchhoff迁移成像和运动补偿方法。 A motion compensation method based on Kirchhoff migration imaging algorithm for MIMO array is proposed.
17960 该方法将传统Kirchhoff积分方程引入到MIMO阵列中，并利用后向格林函数替代前向格林函数来解决小阵列大视场的问题。 In the method, the traditional Kirchhoff intergral equation is introduced into the MIMO array andthe forward Green function is replaced by the backward Green function to solve the problem of the large viewfield of the small array.
17961 另外，在通过微波开关切换分时复用的方式来采集接收单元回波数据的同时，增加1个参考通道直接采集参考单元的回波信号来估计运动目标的位置变化信息，对MIMO通道的数据进行运动补偿后再进行3D成像，有效避免了因目标运动导致的散焦和成像结果偏移真实位置的问题。 The echo signal of the reference unit is directly recieved by adding a reference channelto estimate the position change information of the moving target, while the signal of the receiving units issampled through the microwave switch time divition multiplexing. Then 3D imaging is performed after motioncompensation for the data of the MIMO channel, which avoids effectively the problem of defocusing due totarget migration and the deviation of the imaging result from the real position.
17962 设备到设备通信(D2D)可以有效地卸载基站流量，在D2D网络中不仅需要共享大众化内容还需要个性化内容缓存。 Device to Device (D2D) communications can effectively offload base station traffic. In D2D networks,the popular content is not only needs to be shared, but also the individual content is needs to be cached.
17963 该文对缓存内容选择问题进行了深入研究，提出一种结合特征感知的内容社交价值预测(CSVP)方法。 In this paper, the problem of cache content selection is researched. A Content Social Value Prediction(CSVP) methodbased on feature perception is proposed.
17964 价值预测不仅可以降低时延也可以减少缓存替换次数降低缓存成本。 Value prediction can not only reduce latency, but also reduce the number of cache replacements and reduce cache costs.