| ID | 原文 | 译文 |
| 4363 | 为了提高混合连接的混合预编码的频谱效率，首先利用连续干扰消除（SIC）的原理得到理想条件下的最优混合预编码矩阵， | In order to improve the spectral efficiency of hybridly-connected hybrid precoding, the optimal hybrid pre-coding matrix under the ideal conditions was firstly obtained by using the principle of successive interference cancel-lation (SIC). |
| 4364 | 然后利用梯度下降理论将最优混合预编码矩阵分解为数字预编码矩阵和模拟预编码矩阵， | Secondly, the optimal hybrid precoding matrix was decomposed into the digital precoding matrix and theanalog precoding matrix by using the gradient descent theory. |
| 4365 | 最后考虑模拟预编码矩阵的恒模约束条件，并以最大化频谱效率为目标利用交替最小化方法优化模拟和数字预编码矩阵。 | Finally, considering the constant modulus constraintcondition of the analog precoding matrix, the digital and analog precoding matrices were optimized by using the al-ternating minimization method aim to maximize the spectral efficiency. |
| 4366 | 所提出的混合预编码设计算法基于混合连接结构，因而能量效率远优于部分连接的和全连接的混合预编码。 | Due to the hybridly-connected structure, the proposed hybrid precoding design algorithm is significantly superior to the partially-connected and fully-connected hybrid precoding in terms of the system energy efficiency. |
| 4367 | 同时，该算法不会增加混合连接的混合预编码的硬件复杂度且只少量增加计算量。 | Meanwhile, the algorithm does not increase any hardwarecomplexity and only increases a small amount of computation of the hybridly-connected hybrid precoding. |
| 4368 | 仿真结果表明，该算法能提升混合连接的混合预编码的频谱效率，特别是当射频（RF）链路数大于数据流数时，频谱效率的提升更加显著。 | Computersimulation results exhibit that the proposed algorithm can improve the system spectral efficiency of the hybrid-ly-connected hybrid precoding, and the upgrade of spectral efficiency is more significant especially in the conditionsthat the number of radio frequency (RF) links is greater than the number of data streams. |
| 4369 | 由于分块不需要满足正交性，该算法比现有混合连接的混合预编码更适合实际应用。 | Since the sub-blocks are notnecessary to satisfy orthogonality conditions, the proposed algorithm is more suitable for practical application than theexisting hybridly-connected hybrid precoding. |
| 4370 | 针对传统位置隐私保护方案中未充分考虑攻击者拥有背景知识而导致的隐私泄露问题，基于位置语义和查询概率提出一种假位置选择算法。 | Aiming at the problem of privacy leakage caused by attackers possessing background knowledge in traditionallocation privacy protection schemes, a dummy location selection algorithm based on location semantics and query proba-bility was proposed. |
| 4371 | 在假位置集中的位置之间满足语义差异性、查询概率相近且地理位置尽量分散的条件下，避免了攻击者结合背景知识过滤假位置，同时保证了查询结果的精确性。 | Under the conditions that the locations in the dummy location set satisfied semantic difference, sim-ilar query probability, and geographically dispersed, it avoided attackers who filter dummy locations by combining back-ground knowledge, and the accuracy of query results was guaranteed. |
| 4372 | 仿真实验验证了所提算法能有效保护用户的位置隐私。 | Simulation experiments verify that the proposedalgorithm can effectively protect the user's location privacy. |