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基于5G通信技术的多信道数字媒体信息快速采集方法
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作者 陈文庆 《长江信息通信》 2024年第3期22-24,共3页
为提高对数字媒体信息的采集准确率,提出了基于5G通信技术的多信道数字媒体信息快速采集方法。首先,设计面向5G的资源分配体系,通过信息传输业务流分配最佳的数字媒体资源。计算数据流的虚拟带宽满足时延的要求,根据不同传输优先级调度... 为提高对数字媒体信息的采集准确率,提出了基于5G通信技术的多信道数字媒体信息快速采集方法。首先,设计面向5G的资源分配体系,通过信息传输业务流分配最佳的数字媒体资源。计算数据流的虚拟带宽满足时延的要求,根据不同传输优先级调度待采集的数字媒体信息。然后,运用全双工的通信模式控制无线传感网络,获得同一时隙较多的并发传输链路数量,再分配信息采集信道,根据网络节点的初始状态计算节点传输能力,运用博弈论自主分配采集信道。最后,根据决策选择,占用最大效用值所在的采集信道,运用DOM树快速生成信息采集路径,再通过链接扩展生成新的规则来获取完整信息从而完成采集。实验结果表明,相比于传统方法,该方法的采集准确率更高。 展开更多
关键词 5G通信 采集信道 数字媒体信息
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多信道水文数据采集处理系统
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作者 葛东良 《计算机应用与软件》 CSCD 北大核心 2003年第11期66-67,73,共3页
本文介绍了多信道水文数据采集系统的系统组成结构、方案。中心站软件设计,以及终端站硬件和软件设计实施。
关键词 水情预报 信道水文数据采集处理系统 软件设计 数据查询
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实际网络级无线信道动态衰落仿真技术研究
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作者 陈诗军 罗宇民 +1 位作者 马书宇 胡留军 《系统仿真学报》 CAS CSCD 北大核心 2014年第8期1841-1846,共6页
在无线网络信道仿真中使用外场采集信道会减少和实际信道环境的差异,从而提高仿真的可信性。重点研究了使用实际外场网络级信道实时衰落采样值涉及动态范围问题,首次提出了0dB衰落网络信道、相对动态范围、绝对动态范围等实现外场信道... 在无线网络信道仿真中使用外场采集信道会减少和实际信道环境的差异,从而提高仿真的可信性。重点研究了使用实际外场网络级信道实时衰落采样值涉及动态范围问题,首次提出了0dB衰落网络信道、相对动态范围、绝对动态范围等实现外场信道衰落仿真的三个基本步骤。首次研究了外场采集信道预处理、0dB衰落网络信道、信道动态范围分解与实时处理等关键概念和技术。通过这些关键技术,在仿真中可以使用外场采集的信道衰落值序列,在室内重现多基站多终端间和外场一致的复杂时变的无线衰落环境与复杂时变的相互干扰环境。 展开更多
关键词 无线网络信道 仿真技术 动态范围 信道采集
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Identification of Telecom Operators' Core Distribution Channels Based on Strategic Value Evaluation System
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作者 童莉莉 《China Communications》 SCIE CSCD 2013年第7期148-155,共8页
The strategic value evaluation ofphysical channels is the main purpose of thispaper.To interpret this value,we refine finance,location and competition dimensions.Atotal of 166 social high-star channels are selected as... The strategic value evaluation ofphysical channels is the main purpose of thispaper.To interpret this value,we refine finance,location and competition dimensions.Atotal of 166 social high-star channels are selected as empirical samples.Practice showsthat all second-layer indicators can be quantified by information system or artificial collection.The weight of three first-layer indicatorscan be defined by correlation analysis.The valuecomprehensive ranking of the channels is clearbased on the first-layer and second-layer indicators.In the sample group in this study,theweight of location value is higher.The resultson channels' strategic value research may provide further insights on business value,servicevalue and other related fields. 展开更多
关键词 strategic value telecom operators core channel IDENTIFICATION
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Offline handover location positioning for map matching of mobile probes
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作者 袁月明 关伟 《Journal of Central South University》 SCIE EI CAS 2012年第7期2067-2072,共6页
Handover location technology was employed for collecting road traffic information in a number of field projects, and the project results demonstrate that it is a supplementary and promising means of road traffic infor... Handover location technology was employed for collecting road traffic information in a number of field projects, and the project results demonstrate that it is a supplementary and promising means of road traffic information collection for further traffic supervision and maintenance. Because handover location technology is one kind of pattern matching based location technologies, offiine handovex location positioning is an essential problem to be studied for successfully matching mobile probes on GIS map. Offline handover location positioning method involves two stages, handover location positioning respectively via two weighted models and an optimized model based on the intermediate results obtained in the first stage. A preliminary field test is conducted on a stretch of freeway in the inner suburban region in Beijing, and performance evaluation results show that the proposed method is superior to standard least square model in location accuracy and location precision, which is an effective method of offline handover location positioning. 展开更多
关键词 mobile probe handover location technology offline handover location positioning
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