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36451.福建通信管理局推出促进增值电信企业发展措施
[信息传输、软件和信息技术服务业] [2014-07-18]
关键词:福建;通信管理局;增值电信企业
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36452.基于LEACH能量消耗的新型簇头选择算法
[信息传输、软件和信息技术服务业] [2014-07-18]
Wireless sensor networks are widely deployed in various areas of our daily life.The lifetime of wireless sensor networks takes significant effect in the performance of the whole network.Many network protocols are proposed to improve the lifetime of networks,and among them,low-energy adaptive clustering hierarchy (LEACH) is a promising protocol with self-organization of the clusters and periodic rotation of cluster heads selection to distribute energy consumption uniformly.LEACH performs well compared with other protocols on lifetime while it is simplified and has aspects to improve.In this paper,we modified the procedure of cluster heads selection in LEACH and proposed a protocol LEACH-CHE with consideration on the energy consumption of cluster heads.We analyzed LEACH-CHE and with the results of simulations,LEACH-CHE over performs on network lifetime compared with the original LEACH.
关键词:无线传感器网络;生命周期;LEACH-CHE;能源消耗
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36453.构建科学体系加强宽带战略实施进程评估
[信息传输、软件和信息技术服务业] [2014-07-18]
根据评估体系对宽带战略进行评估是宽带战略的重要组成部分。随着宽带战略的实施,各国都在进行宽带战略的评估,我国2013年8月正式发布宽带中国战略,提出了至2020年的宽带发展目标,我们需要建立与国际接轨的评价指标体系,对我国宽带战略的进展与阶段性成果进行评估,指导今后的发展。
关键词:宽带战略;速率;评估
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36454.CEA宣布“亚洲消费电子展”首次登陆中国----2015年亮相上海,搭建全球消费电子行业展示平台
[信息传输、软件和信息技术服务业] [2014-07-18]
关键词:CEA;“亚洲消费电子展”;全球消费电子行业
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36455.手机上网会取代有线宽带吗?
[信息传输、软件和信息技术服务业] [2014-07-18]
无线、有线宽带是实现宽带接入的两种途径,都可以满足人们的上网需求。随着移动互联网的兴起,智能手机在有效覆盖范围内实现高速、随时随地上网,且携带方便,在个人消费群体中非常普及。《第33次中国互联网络发展状况调查统计报告》显示,截至2013年12月,中国手机网民规模达5亿,使用手机上网的网民占到81%,手机占据第一上网终端的地位。
关键词:手机上网;有线宽带;取代
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36456.以在线维特比算法关系为标准查询流数据的实现
[信息传输、软件和信息技术服务业] [2014-07-18]
In this paper,we discuss a method for implementing online Viterbi algorithm as standard relational queries over streaming data.Our primary contribution is an approach to storing and manipulating most probable state paths,the candidate solutions to the problem,within a relational data model.We evaluate our prototype implementation over real-world sensor data from the Intel Lab dataset.
关键词:维特比算法;流数据;关系型数据库
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36457.大数据应用成未来运营商新型商业模式的关键支点
[信息传输、软件和信息技术服务业] [2014-07-18]
关键词:大数据应用;运营商;新型商业模式
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36458.基于蚁群算法的高能无线传感器网络QOS多播路由算法
[信息传输、软件和信息技术服务业] [2014-07-18]
Multicast routing technology of wireless sensor network is a method of transferring special data to a group of clients selectively; therefore,quality of the services is the key to evaluate the method.Ant colony algorithm is a bionic optimization algorithm.Improved QoS Multicast Routing Algorithm is proposed based on energy constraint and based on ant colony algorithm,it takes into account the energy cost routing,making the nodes to establish of minimum cost path under the condition of energy constraint.The results show that this algorithm can obtain better energy balance,improve the network services of the time.This algorithm applies to energy-sensitive multicast applications in wireless sensor networks.
关键词:Qos;能源成本;无线网络;蚁群算法
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36459.马尔可夫跳跃系统网络的稳定性
[信息传输、软件和信息技术服务业] [2014-07-18]
In this chapter, based on the Lyapunov-Krasovskii functional method in delta domain and the LMI technique, the problem of robust stability for Marko-vian jump DOSs with mode-dependent time delays has been studied. This class jump DOSs come from NCSs which contain sensor-to-controller random network-induced delay and arbitrary packet loss. Moreover, we have used a class of linear fractional parameter uncertainties, which means that a less conservative result would be obtained than by using norm-bounded parameter uncertainties. Numerical example has been given to illustrate the feasibility and effectiveness of the developed technique.
关键词:系统网络;泛函方法;网络控制系统;线性分式
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36460.NAVAIR便携式源码倡议(NPSI)数据准备标准V2.2:NPSIDPSV2.2
[信息传输、软件和信息技术服务业] [2014-07-18]
The mission of NPSI is to provide maximum database reuse across Type/Model/Series platforms to lower the life cycle cost of out-the-window visual terrain, 3-D models, and sensor databases, along with dataset archive capability, and short-notice distribution services. This document outlines the standards and requirements for data capture to meet the NPSI mission of data reuse.
关键词:数据库;数据管理;需求标准;数据采集;生命周期