ID 原文 译文
58438 基于软件定义网络( SDN) 拓扑集中更新的命名数据网络( NDN) 路由策略，将路由的 2 个关键功能分离，拓扑更新功能集中置于 SDN 控制器中，而路由计算功能分布式地置于 NDN 内容节点中. Named data networking ( NDN) routing strategy based on software defined network ( SDN)centralized topology update separates the two key functions of routing. The topology update function iscentralized in the SDN controller，while the route calculation function is distributed in the NDN contentnodes.
58439 同时，对网络拓扑进行负载加权预处理，在考虑网络状态的前提下，可优化路由计算. In addition，in this strategy，load-weighted preprocessing of the network topology can be per?formed under the premise of considering the state of the network.
58440 仿真结果表明，在基于 SDN 拓扑集中更新的 NDN 路由策略中，内容请求数据流的首包时延平均降低了 90% ，SDN 控制器的负荷平均降低了 10% ～ 30% ，全网实现了有效的负载均衡 Simulation results show that in the NDNrouting strategy based on the SDN centralized topology update，the delay of the first packet of the contentrequest data stream is reduced by an average of 90% ，the load of the SDN controller is reduced by an av?erage of 10% to 30% ，and the entire network realizes an effective load balancing
58441 提出了一种基于极化多维星座的正交频分复用 (OFDM) 物理层安全通信机制, 通过高维星座设计, 可以有效地加密调制信息, 保护无线通信的调制信息不被发现, 从而保证无线通信的安全提出了一种基于极化多维星座的正交频分复用 (OFDM) 物理层安全通信机制, 通过高维星座设计, 可以有效地加密调制信息, 保护无线通信的调制信息不被发现, 从而保证无线通信的安全 An orthogonal frequency division multiplexing ( OFDM) multi-carrier physical layer securecommunication mechanism based on multi-dimensional constellation was presented，which can effectivelyprevent the modulation information of wireless communication from being eavesdropped，therefore，the se?curity communication is guaranteed. Based on multi-dimensional constellation，the system symbol errorrate performance and spectrum utilization are derived and simulated. Simulations show that the multi-car?rier polarization state-amplitude-phase modulation scheme can effectively prevent the eavesdropper fromobtaining the modulation information，and its symbol error rate and spectral efficiency are significantlybetter than the traditional OFDM-QAM modulation.
58442 高效视频编码( HEVC) 标准中引入的不对称分割模式导致运动估计算法中绝对差值和( SAD) 运算量成倍增加. The asymmetric partitioning mode introduced in the high efficiency video coding ( HEVC)standard results in a double increase of the sum of absolute difference ( SAD) operation amount in themotion estimation algorithm.
58443 为了提高运动估计算法的执行效率，方便用户进行自主选择，设计了同时支持不对称分割模式开启和关闭 2 种执行模式以及执行模式间自由切换的可重构阵列结构. In order to improve the efficiency of motion estimation algorithm，it is con?venient for users to choose independently，a reconfigurable array structure is designed which supportsboth the opening and closing of an asymmetric partitioning mode and the free switching between executionmodes.
58444 为了满足用户要求编码速度的同时，最大限度地利用可重构阵列处理器的资源，在阵列结构为 16 × 16 个处理元中通过加载 16 × 8、16 × 4 以及 16 × 2 个处理元的指令来进行阵列规模的动态重构，采用指令下发的方式将不同的指令发送到对应处理元进行相应配置. In order to satisfy the user's requirement for coding speed，and maximize the use of the resourcesof the reconfigurable array processor，16 × 8，16 × 4，and 16 × 2 processing elements are loaded in an ar?ray structure of 16 × 16 processing elements. The instruction is used to dynamically reconfigure the arraysize，and different instructions are sent to corresponding processing elements for corresponding configura?tion by means of the instruction issuance manner.
58445 实验结果表明，所提出的可重构实现方式在硬件资源占用量接近条件下，相较于流水化实现处理时间减少了约 35% ，吞吐量提高了约0.4 倍. The experimental results show that the proposed recon?figurable implementation approach reduces the processing time by about 35% and the throughput is im?proved by about 0. 4 times compared with the streamlining under the condition that the hardware resource occupancy closely.
58446 该实现具有较高的执行效率，能够进行执行模式与阵列规模的切换，具有较好的灵活性. The implementation has high execution efficiency，and can switch between executionmode and array size，and has better flexibility.
58447 为提高大规模多输入多输出( MIMO) 系统复用增益，降低天线硬件成本，提出一种基于全阵列天线结构的混合预编码算法. To improve the multiplexing gain and reduce the hardware cost of antennas in massive multi?ple-input multiple-output systems，a hybrid precoding algorithm based on the fully-connected antennastructure was proposed.