ID 原文 译文
45126 分析结果表明,该方案是正确的、安全的,且信息率为12。 The analysis results show that the scheme is correct, secure, and the information rate is12.
45127 针对毫米波蜂窝网络中开放接入模式下多运营商双频混合频谱接入方案的频谱效率进行了研究。 In millimeter wave cellular networks, the spectrum efficiency of multi-operator dual frequency hybrid spectrum access scheme under open access mode was studied.
45128 首先,采用泊松点过程对各运营商基站分布进行建模,用户根据最大接收功率准则选择基站以及高频载波信号干扰噪声比(SINR)阈值接入准则选择载波频段; Firstly, Poisson point process was used to model the distribution of base stations of each operator, the base station and carrier frequency were selected by users based on maximum received power criterion and high frequency carrier signal to interference plus noise ratio (SINR) threshold access criterion respectively.
45129 其次,采用速率覆盖率作为研究频谱效率的性能指标,根据信道模型、路径损耗模型和天线模型,由随机几何理论推导出速率覆盖率的理论计算式; Secondly, the rate coverage was used as performance criteria to study the spectrum efficiency, and the theoretical expression of rate coverage was derived based on stochastic geometry theory according to channel model, path loss model and antenna model.
45130 最后,通过仿真实验分析用户密度、基站密度和天线增益等参数对速率覆盖率的影响。 Finally, the influence of user density, base station density and antenna gain on rate cover-age was analyzed by simulation.
45131 实验结果表明,多运营商双频混合频谱接入方案具有较好的频谱利用率。 The experimental results show that the multi-operator dual frequency hybrid spectrum access scheme has better spectrum utilization efficiency.
45132 能量捕获具有部署灵活和可持续供能的优点,已成为解决物联网中设备能量受限的有效途径之一。 Energy harvesting (EH) has been considered as a promising technology to solve the constrained energy problem in the devices of IoT with its advantages of flexible deployment and sustainable energy supply.
45133 针对基于能量捕获的多接入信道,能量捕获技术存在能量来源不稳定、存储设备容量有限等因素,因此采用基于超级电容和电池的混合储能结构。 For multiple access channel with energy harvesting, a hybrid energy storage structure model composed by super capacitor and battery was proposed for the devices of IoT.
45134 根据其信道的特点和能量捕获的随机特性,引入节点能量约束关系,提出了一种呈指数型下降(ETD)的近似最优能量分配策略对平均吞吐量进行分析,推导其上下界及其常数差值。 According to the peculiarities of medium access channel and energy harvesting system,an optimized energy allocation strategy with exponential-type decline (ETD) was presented, the upper and lower bounds of the average throughput were deduced, in particular, the gap of two bounds was derived to be a constant.
45135 最后利用平均吞吐量和信道容量的关系求得近似信道容量。 The channel capacity was further obtained by utilizing the relationship between the average throughput and the channel capacity.