| ID | 原文 | 译文 |
| 4273 | 仿真结果证明所提算法有效地提升了网络性能。 | Simulation results prove that the proposed algorithm effectively improves network performance. |
| 4274 | 为提高计算任务卸载的效率，提出了一种基于 D2D 通信、移动边缘计算和云计算的分层任务卸载框架，并引入 D2D 协作中继技术辅助用户接入远端计算资源。 | To improve the efficiency of computation offloading, a hierarchical task offloading framework based on de-vice-to-device (D2D) communication, mobile edge computing and cloud computing was proposed, in which cooperativeD2D relay technology was introduced to assist users to access remote computing resources. |
| 4275 | 针对所提任务卸载框架在多用户场景中可能存在上行通信拥塞、边缘计算资源受限、D2D 复用干扰和云计算回程时延等问题，设计了一种基于博弈论的卸载调度和负载均衡方案，充分利用了所提任务卸载框架中各层计算和通信资源。 | Considering the negative ef-fects of uplink channel congestion, limited edge computing capability, D2D reuse interference and backhaul delay of cloud computing in the multi-user scenario of the proposed framework, a game theory based offloading scheduling andload balancing scheme was developed by fully taking advantage of the computing and communication resources in the proposed framework. |
| 4276 | 仿真结果表明，所提方案能够有效降低端到端时延和卸载能耗，并在资源受限的条件下具有良好的稳定性。 | The simulation results demonstrate that the proposed scheme can effectively reduce end-to-end de-lay and offloading energy consumption, and also has good stability even when the network resources are limited.Key words: hierarchical task offloading, mobile edge computing, device-to-device communication, cloud computing,game theory |
| 4277 | 针对基于云服务的虚拟现实对数据传输速率的高要求以及对传输时延的敏感性问题，提出并设计了基于移动边缘计算技术的云 VR 系统方案，主要包括基于视点的 VR 处理和混合数模传输优化。 | In order to solve the problem of the high requirements of data transmission rate and sensitivity to transmissiondelay in virtual reality (VR) based on cloud services, a Cloud VR system with MEC (mobile edge computing) was pro-posed, mainly including viewpoint-based VR processing and HDA (hybrid digital-analog) transmission optimization. |
| 4278 | 首先采用基于金字塔投影的用户视点感知动态推流方法实现基于视点的 VR 处理； | Firstly, a dynamic streaming method based on user viewpoint and pyramid projection was used to implement a completeedge cloud VR system. |
| 4279 | 然后引入混合数模技术对传输进行优化改进，并给出了启发式的资源分配优化算法； | Then, HDA transmission was introduced to optimize the transmission, and a heuristic algorithmfor resource allocation was given. |
| 4280 | 最后在长期演进（LTE）系统的基础上改造基站协议栈，融入移动边缘计算技术，实现了完整的移动边缘云 VR 系统。 | Finally, the base station protocol stack was transformed, and the MEC was integrated into the LTE (long term evolution) system to implement a complete mobile edge cloud VR system. |
| 4281 | 实验结果表明，与已有方案相比，所提方案能够实现更加稳健高效的传输，达到更好的 VR 用户体验。 | Experimental results demon-strate that the proposed scheme has good robustness and efficient transmission by comparing with the existing schemes. |
| 4282 | 为进一步提升卫星导航系统的综合性能，在导频（测距）信号与数据信号分离的卫星导航信号设计思想的基础上，基于扩频码优良的自互相关特性，利用扩频码时移位置调制电文、数据信息，提出了基于扩频码时移位置调制的卫星导航信号设计方法。 | A novel navigation signal design method based on spread code time shift position modulation was proposed,which inherits the idea of separating the pilot signal component and the data signal component, and applies time shift po-sition of the spread code to carry data information. |