共查询到20条相似文献,搜索用时 15 毫秒
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Mobile Networks and Applications - 相似文献
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The wide variety of smart embedded computing devices and their increasing number of applications in our daily life have created new opportunities to acquire knowledge from the physical world anytime and anywhere, which is envisioned as the“Internet of Things” (IoT). Since a huge number of heterogeneous resources are brought into IoT, one of the main challenges is how to efficiently manage the increasing complexity of IoT in a scalable, flexible, and autonomic way. Furthermore, the emerging IoT applications will require collaborations among loosely coupled devices, which may reside in various locations of the Internet. In this paper, we propose a new IoT network management architecture based on cognitive network management technology and Service-Oriented Architecture to provide effective and efficient network management of IoT. 相似文献
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Feng Li Kwok-Yan Lam Zhengguo Sheng Xinggan Zhang Kanglian Zhao Li Wang 《Mobile Networks and Applications》2018,23(6):1636-1644
In recent years, Industrial Internet of Things (IIoT) has attracted growing attention from both academia and industry. Meanwhile, when traditional wireless sensor networks are applied to complex industrial field with high requirements for real time and robustness, how to design an efficient and practical cross-layer transmission mechanism needs to be fully investigated. In this paper, we propose a Q-learning-based dynamic spectrum access method for IIoT by introducing cognitive self-learning technical solution to solve the difficulty of distributed and ordered self-accessing for unlicensed terminals. We first devise a simplified MAC access protocol for unlicensed users to use single available channel. Then, a Q-learning-based multi-channels access scheme is raised for the unlicensed users migrating to other lower cells. The channel with most Q value will be considered to be selected. Every mobile terminals store and update their own channel lists due to distributed network mode and non-perfect sensing ability. Numerical results are provided to evaluate the performances of our proposed method on dynamic spectrum access in IIoT. Our proposed method outperforms the traditional simplified accessing methods without self-learning capability on channel usage rate and conflict probability. 相似文献
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近年来,物联网技术被广泛应用在人们的日常生活和工作等领域.物联网技术的应用不仅能够提升人们生活和工作的便利性,还能满足社会各个领域的创新发展需求.基于此,研究物联网的关键技术,分析目前计算机物联网的应用现状和未来发展措施,旨在为计算机物联网技术的良好发展和进步夯实基础. 相似文献
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Mobile Networks and Applications - Routing is the process of determining the data transmission path from the source to the destination considering restrictions. Optimizing the transmission... 相似文献
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互联网与物联网 总被引:12,自引:0,他引:12
蒋林涛 《电信工程技术与标准化》2010,23(2):1-5
物联网是目前热议中的话题。本文详细讨论了互联网与物联网的网络结构,指出互联网与物联网发展将会是相辅相成的,在相互学习中前进,在发展中走向融合。 相似文献
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物联网:Web3.0时代的变革力量 总被引:1,自引:0,他引:1
物联网是信息技术积累到今天的一个发展机遇,是继个人计算机、互联网之后世界信息产业的第三次变革,随着信息技术的发展,人们即将进入物联网时代。物联网是指把所有物品通过射频识别等信息传感设备与互联网连接起来实现智能化识别和管理的网络。在物联网的基础上,“感知中国”、”智慧地球”将成为现实。 相似文献
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物联网是当今研究的一个热门技术,我国作为农业大国,在现代化大农业的发展中,物联网技术在智慧农业中得到很好的应用。认知无线电是一类智能无线通信技术,能够通过对周边环境的感知而发现空闲的可用频谱资源,从而提高频谱利用率。将农业物联网与认知无线电技术相结合,能够缓解农业物联网所面临的频谱资源紧张问题。分析了物联网频谱研究涉及的方面和频谱管理的现状,将认知无线电频谱感知技术应用到农业物联网环境中,研究基于认知的农业物联网的网络架构,提出了认知无线电技术在农业物联网中应用带来的挑战。 相似文献
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一、引言物联网(Internet Of Things,IOT)自提出以来,迄今为止还没有一个统一的定义,目前的定义都偏重于功能和特点的描述上。2005年ITU(国际电信联盟)发布的"ITU互联网报告2005:物联网"给出的定义是:物联网是包括人与物,物与物之间的联系,即在任何时间,任何地点,任何物品间,都可以进行通信,也就是随时随地实现人与人(包括PC或非PC),人与物,物与物之间的交互。从技术的角度上讲,物联网是通过RFID(无线射频识别)、传感器、全球定位系统、激光扫描器等设备,按约定的协议,把任何物品(包含人,下同)与互联网 相似文献