ID 原文 译文
51977 采用消息传递检测(MPD)算法实现了良好的检测性能。 The original Message Passing Detection(MPD) algorithm utilizes channel hardening theory to achieve good detection performance in large-scale MIMO systems.
51978 但是由于MPD算法的计算复杂度随调制阶数和用户天线数的增加而增加，在实际的大规模MIMO系统中难以有效实现。 However, the computational complexity of the MPD algorithm increases with the increase of the modulation order and the number of user antennas, which is difficult to implement effectively in an actual large-scale MIMO system.
51979 概率近似-消息传递检测(PA-MPD)算法可以减少原始MPD算法的计算复杂度。 The Probabilistic Approximation-MPD(PA-MPD) algorithm can reduce the computational complexity of the original MPD algorithm.
51980 文章将提前终止迭代过程和更新部分符号概率的策略应用于MPD算法迭代过程中，提出了一种选择性更新-消息传递检测(SU-MPD)算法，从而降低了MPD算法的计算复杂度。 In this paper, the iterative process of terminating the iterative process and updating the partial symbol probability is applied in the iterative process of the MPD algorithm, a Selective Update-MPD(SU-MPD) algorithm is proposed, which reduces the computational complexity of the MPD algorithm.
51981 仿真结果表明，在各种天线配置下SU-MPD算法的计算复杂度最大限度可降低为MPD算法的19%和PA-MPD算法的50%，且不降低算法的检测性能。 The simulation results show that the computational complexity of SU-MPD algorithm can be reduced to 19% of MPD algorithm and 50% of PA-MPD algorithm under various antenna configurations, without reducing the detection performance of the algorithm.
51982 为了提高多输入多输出(MIMO)系统中索引调制方案的频谱效率，文章将空间调制(SM)和码索引调制(CIM)相结合，并利用并行传输的思想，使每个时隙的传输信息比特由两个调制符号、两个天线索引和两个伪随机(PN)码索引进行传输。 In order to improve the spectral efficiency of the index modulation scheme in Multiple Input Multiple Output(MIMO) systems, this paper combines Spatial Modulation(SM) with Code Index Modulation(CIM) and uses the idea of parallel transmission to convey the transmission information bits by two modulation symbols, two antenna indexes, and two Pseudo Noise(PN) code indexes in each time slot.
51983 此外，文章所提方案还利用天线选择技术和正交振幅调制符号的旋转对称特性，分别提高了系统的误码率(BER)性能，降低了接收机的检测复杂度。 In addition, the proposed scheme also uses the antenna selection technique and the rotational symmetry characteristics of the quadrature amplitude modulation symbols to improve the Bit Error Rate(BER) performance of the system and reduce the detection complexity of the receiver, respectively.
51984 仿真结果表明，文章所提方案的BER性能明显优于其他几种索引调制方案，并且与最优的最大似然(ML)检测算法相比，文章提出的低复杂度ML检测算法具有与其相同的BER性能。 The simulation results show that the BER performance of the proposed scheme is obviously better than other index modulation schemes, and the low complexity Maximum Likelihood(ML) detection algorithm proposed in this paper has the same BER performance compared with the optimal ML detection algorithm.
51985 文章在室内多小区可见光通信(VLC)系统中设计了一种使用视场角(FOV)不同的两种光电二极管(PD)的角度分集光接收机(2FOV-ADR)， In this paper, an Angle Diversity Optical Receiver Using Two Types of Photo Diodes(PD) with Different Field of View(2FOV-ADR) is designed in an indoor multi-cell Visible Light Communication(VLC) system.
51986 并且以面积频谱效率(ASE)最大化为目标进一步对接收机进行参数优化，包括接收机PD的仰角以及采用的合并方式。 It further optimizes the parameters of the receiver with the goal of maximizing Area Spectral Efficiency(ASE), including the elevation angle of the receiver PD and the combination method adopted.