ID |
原文 |
译文 |
22505 |
光无线融合接入网存在光网络单元利用率低,数据传输过程中控制开销较大的问题。 |
Integrated Fiber-Wireless (FiWi) access network has the problems of low utilization rate of optical network unit and large control overhead during data transmission. |
22506 |
该文提出一种带有上行数据帧聚合的节能机制,建立 M/G/1 模型分析数据帧在无线域节点及光域节点的队列时延,结合不同优先级业务的最大容忍时延,推导各优先级聚合帧在不同网络状态下的最佳长度,进而根据所得到的最佳帧长对光域节点进行休眠调度,在保障业务时延的前提下,尽可能地延长节点休眠时间长度,提高网络能量效率。 |
In this paper, an energy saving mechanism with uplink data frame aggregation is proposed, the M/G/1 model is used to analyze the queue delay of the data frame in the wireless domain node and the optical domain node, by combining with the maximum tolerable delay of different priority, the optimal length of the aggregation frame is deduced in different network conditions. And then according to the optimal frame length to perform sleep scheduling for optical domain nodes, on the premise of guaranteeing the service delay, as much as possible to extend the length of node sleep time, and then the network energy efficiency is improved. |
22507 |
仿真结果表明,所提方法在有效降低整个网络能耗的同时能够保证业务的时延性能。 |
The simulation results show that the proposed method can effectively reduce the energy consumption of the whole network and guarantee the delay performance. |
22508 |
针对频谱感知错误累积造成频谱预测性能恶化问题,该文提出一种基于最小贝叶斯风险的稳健频谱预测策略。 |
The accumulation of miss detection and false alarm in spectrum sensing leads to the persistently decreasing of prediction accuracy in spectrum prediction. This paper takes neural network based spectrum prediction for example, and presents a minimum Bayesian Risk based spectrum prediction to solve this problem. |
22509 |
分布拟合检验表明频谱预测输出服从正态分布,定义频谱预测输出的贝叶斯风险函数,证明使贝叶斯风险函数最小的频谱预测输出判决门限将使频谱预测的均方误差最小,求得了使贝叶斯风险最小的最优判决门限,构建稳健频谱预测策略。 |
The distribution fitting shows that the prediction output follows the normal distribution. The expectation of prediction mean square error is defined as the Bayesian Risk, and the optimal detection threshold of the prediction output is derived through minimizing the Bayesian Risk. Through this method, the prediction accuracy is insensitive to the spectrum sensing errors. |
22510 |
仿真结果表明,与固定判决门限的神经网络频谱预测相比,稳健频谱预测策略改进了频谱感知错误下的频谱预测性能,改善了非授权用户的动态频谱接入性能。 |
Compared with the traditional spectrum prediction with fixed detection thresholds, simulation results demonstrate the robust spectrum prediction keeps the prediction accuracy stable, and improve the performance in dynamic spectrum access. |
22511 |
对流层斜延迟是对流层散射双向时间比对中一个重要误差源,该文提出一种对流层散射双向时间比对中对流层斜延迟实时估计方法。 |
Tropospheric slant delay is a main error source in two way time transfer via tropospheric scatter communication. A method for real-time estimation of tropospheric slant in two way time transfer via tropospheric scatter communication is proposed. |
22512 |
通过 GPT2w 模型计算测站气象数据,克服对流层斜延迟估计中对实时气象数据的依赖。 |
The meteorological data of the station are calculated by the GPT2w model to overcome the reliance on the real-time meteorological data in the estimation of tropospheric delay. |
22513 |
针对 Hopfield 模型中固定的对流层散射顶层高,利用几何方法计算动态对流层散射顶层高,以解决对流层散射双向比对的实际应用问题。 |
In order to solve the problem of the fixed height of the top troposphere layer, the real height of the top troposphere layer is calculated by geometric method to solve the practical application. |
22514 |
选取日本地区 3 个测站,两两进行比对,在验证 Hopfield 模型精度后,计算 3 组比对站在不同入射角和不同时间的对流层斜延迟。 |
Three stations in Japan are selected and compared with each other. After verifying the accuracy of the Hopfield model, the tropospheric delay of the three groups at different angles and different time is calculated. |