ID 原文 译文
19965 然后，利用一种基于相似接收信号强度(RSS)序列片段的信号聚类算法，保证同一聚类中RSS样本的物理邻接关系； Then, a signal clustering algorithm based on the similarReceived Signal Strength (RSS) sequence segments is adopted to guarantee the physical adjacency of the RSSsamples in the same cluster.
19966 最后，通过骨干节点的扩散映射，建立物理与信号空间的映射关系，实现对运动用户的定位。 Finally, the backbone nodes based diffusion mapping is used to construct the mapping relations between the physical and signal spaces, and the motion user localization is consequently achieved.
19967 实验结果表明，相比于已有WLAN室内映射与定位方法，该文方法在无需运动传感器辅助和构建位置指纹数据库的条件下，能够实现更高的映射与定位精度。 The experimental results indicate that compared with the existing WLAN indoor mapping and localization approaches, the proposed one is able to achieve higher mapping and localization accuracy without motion sensor assistance or location fingerprint database construction.
19968 在云接入网络(Cloud-RAN)中，现有工作大多假定射频拉远头(RRH)不具备缓存功能。 In Cloud Radio Access Network (Cloud-RAN), most of the existing work assumes Remote RadioHeads (RRHs) could not cache content.
19969 然而下一代通信网络具有以内容为中心的特性，因此在Cloud-RAN中考虑带缓存的RRHs也变得有必要。 To better adapt the content-centric feature of next-generation communication networks, it is necessary to consider caching function for RRHs in Cloud-RAN.
19970 该文考虑在Cloud-RAN中有效设计缓存方案，并通过资源分配有效减轻前程链路负担。 Motivated by this, this paper intends to design the suitable caching schemes and reduce the burden of fronthaul link burden through resource allocation.
19971 假设系统采用正交频分多址接入(OFDMA)技术，通过联合优化子载波(SC)分配，RRH选择与传输功率，最小化系统下行总功耗，并通过拉格朗日对偶分解转化非凸问题，获得最优分配方案。 It is assumed the system utilizes Orthogonal Frequency Division Multiple Access(OFDMA) technique. A jointly optimization scheme of SubCarrier (SC) allocation, RRH selection, andtransmission power is proposed to minimize the total downlink power consumption. To transform the originalnon-convex problem, a Lagrange dual decomposition is utilized to design the optimal allocation scheme.
19972 仿真结果表明，比起其它缓存方案，该文提出的优化算法可以有效地提升系统能效，满足未来通信需求。 The experimental results show that the proposed algorithms can effectively improve the energy efficiency of the system, which meets the requirements of green communication in the future.
19973 针对期望信号波达角(DOA)估计误差较大时相干波束形成性能下降的问题，该文提出一种基于多级阻塞的稳健相干自适应波束形成算法。 Since the performance of adaptive beamforming algorithm for coherent signals degrades when the estimation error in the Direction Of Arrival (DOA) of the desired signal is large, a new multistage blocking based beamforming algorithm for coherent interference suppression is proposed.
19974 该算法首先定义阻塞矩阵，推导多级阻塞原理，并利用其滤除阵列接收信号中的期望信号； Firstly, the blocking matrix isconstructed and the principle of multistage blocking is derived, with which the received signal is processed toremove the desired signal component.