物联网技术及其应用

物联网是继计算机、互联网之后的世界信息产业发展的第三次浪潮,它将是下一个推动社会发展的“重要生产力”,它可以实现人与人、人与物、物与物的无所不在、无所不能的沟通和交流。本文介绍了物联网的定义、主要特点、物联网与互联网、传感器网络、泛在网的异同之处。     

A Scalable and Efficient Metadata Framework Towards Internet of Things

Wireless Personal Communications - The Internet of Things will enable objects to be identified, sensed, and controlled remotely across the existing Internet infrastructure. Even though interacting...     

Decades of Internet of Things Towards Twenty-first Century: A Research-Based Introspective

Wireless Personal Communications - Internet connects people to people, people to machine, and machine to machine for a life of serendipity through a Cloud. Internet of Things networks objects or...     

Reliable and Adaptive Distributed Public-Key Management Infrastructure for the Internet of Things

Wireless Personal Communications - The Internet of Things (IoT) is an emerging paradigm in the world of computer networks, where physical objects are connected over the Internet. Given the huge...     

RPL Enhancement Based FL-Trickle: A Novel Flexible Trickle Algorithm for Low Power and Lossy Networks

Wireless Personal Communications - The Internet of Things (IoT) is an ubiquitous revolutionary technology, covering a set of domains in our daily life objects. IoT makes these objects autonomous...     

Interoperability of Security-Enabled Internet of Things

The future Internet will embrace the intelligence of Web 3.0 and the omnipresence of every day connected objects. The later was envisioned as the Internet of Things. Security and interoperability concerns are hindering the service innovations using the Internet of Things. This paper addresses secure access provision to Internet of Things-enabled services and interoperability of security attributes between different administrative domains. In this paper we proposed a layered architecture of Internet of Things framework where a semantically enhanced overlay interlink the other layers and facilitate secure access provision to Internet of Things-enabled services. The main element of semantic overlay is security reasoning through ontologies and semantic rules. Finally the interoperability of security aspect is addressed through ontology and a machine-to-machine platform. This paper provides implementation details of security reasoning and the interoperability aspects and discusses crucial challenges in these areas.     

Managed Ecosystems of Networked Objects

Small embedded devices such as sensors and actuators will become the cornerstone of the Future Internet. To this end, generic, open and secure communication and service platforms are needed in order to be able to exploit the new business opportunities these devices bring. In this paper, we evaluate the current efforts to integrate sensors and actuators into the Internet and identify the limitations at the level of cooperation of these Internet-connected objects and the possible intelligence at the end points. As a solution, we propose the concept of Managed Ecosystem of Networked Objects, which aims to create a smart network architecture for groups of Internet-connected objects by combining network virtualization and clean-slate end-to-end protocol design. The concept maps to many real-life scenarios and should empower application developers to use sensor data in an easy and natural way. At the same time, the concept introduces many new challenging research problems, but their realization could offer a meaningful contribution to the realization of the Internet of Things.     

The Internet of Things and Ubiquitous Intelligence （3）

The traditional Internet is oriented towards person-to-person connection,whereas the Internet of things(IoT) is oriented towards connections between inanimate objects.IoT covers a larger range of connections and involves more semantics than traditional Internet.Traditional Internet and telecom networks focus on information transfer,but IoT focuses on information services.By combining sensor networks,Internet,telecom networks,and cloud computing platform,IoT can sense,recognize,affect,and control the physical world.The physical world can be unified with the virtual world and human perception.In this part,we discuss ubiquitous network convergence and cooperation technologies in terms of their application scenarios,technical advantages and research directions.We also briefly introduce IoT services.     

World Wide Web: whence, whither, what next?

The World Wide Web (WWW) has become, next to electronic mail, the most popular Internet application. It has been a major contributor in turning the Internet into a household word. The WWW allows users to retrieve text and multimedia objects from servers located throughout the world, with objects connected by hypermedia links. The author presents a snapshot of the WWW after about half a decade, and speculates about where this young medium might be improved and which directions it might take from a technical perspective. Like most (successful) Internet technologies, the underlying central functionality of the Web is rather simple: a naming mechanism for files (the universal resource locator, URL), a typed, stateless retrieval protocol (hypertext transfer protocol, HTTP), and a minimal formatting language with hyperlinks (hypertext markup language, HTML)     

Unification of Blockchain and Internet of Things (BIoT): requirements,working model,challenges and future directions

Wireless Networks - The Internet of Things (IoTs) enables coupling of digital and physical objects using worthy communication technologies and introduces a future vision where computing systems,...     

Internet服务故障的影响分析模型

通过分析通用Internet服务体系结构,提取出Internet服务中主要的被管对象类以及分析被管对象类之间的相互关联关系,提出了一个Internet服务故障影响分析模型,此模型涵盖了高层服务与实现支撑该服务的IT基础设施之间的关系。实验结果表明,基于该模型能够有效地分析Internet服务故障对该服务的影响。     

CHIP: Collaborative Host Identity Protocol with Efficient Key Establishment for Constrained Devices in Internet of Things

Wireless Personal Communications - The Internet of Things (IoT) is the next evolutionary paradigm of networking technologies that interconnects almost all the smart objects and intelligent sensors...     

Security of internet of things based on cryptographic algorithms: a survey

Wireless Networks - Internet of Things (IoT) is a new concept in Information and Communications Technology and its structure is based on smart objects communications. It contributes to controlling,...     

Analysis of malware propagation behavior in Social Internet of Things

Social Internet of Things (SIoT) is an evolution of the Internet of Things, where objects interact socially with each other in the sense that they can independently establish new relationships, offer, or discover services, in order to accomplish their tasks with minimum involvement of the user. This additional convenience comes at the expense of higher risk of speeding up malware propagation through the dynamically created relationships. Because of the undesirable effects of malware (eg, disruption of device operation), it is essential to understand their spreading behavior in order to minimize their negative impacts. In this paper, we analyze malware propagation behavior in SIoT and investigate different parameters that influence spreading of malware. Toward that end, a simulator has been developed to simulate the spreading process of malware in SIoT. Many propagation scenarios were analyzed using the proposed simulator. Simulation results show that adding more relationships in the SIoT or increasing the number of owned objects per user has increased malware spreading rate. For example, the time to infect all objects is faster by 45% when objects communicate through four relationships compared with the case when objects communicate through only two relationships in SIoT. We also investigated ways to restrict the malware spreading. Results show that preventing objects from establishing dynamic social relationship slows down the infection by 40% compared with the next best scenario (ie, blocking co‐location relationships), which means more time for vendors to patch up their products.     

基于物联网环境下WCDMA R4网络结构分析

物联网的层次结构主要包括感知层、网络层和应用层。物联网的可靠传送是指借助于各种互联网和通信网络的互相交融,促使物体接入相应的网络系统,从而能够随时进行可信的信息共享和交互。本文针对在物联网环境下WCDMAR4网络结构进行研究。     

The common agent-a multiprotocol management agent

The common agent is an implementation of an ISO-compliant management agent that supports multiple management protocols and the run-time addition of new classes of managed objects. Support is also provided for managing objects that are defined according to the structure of management information, defined by the Internet Engineering Task Force, and the structure of management information defined by ISO     

LiMCA: an optimal clustering algorithm for lifetime maximization of internet of things

Wireless Networks - The idea of Internet of Things (IoT) is that many of the live objects (e.g., appliances) in the network are accessible, sensed, and interconnected. However, energy-constrained...     

A lightweight, robust P2P system to handle flash crowds

An Internet flash crowd (also known as hot spots) is a phenomenon that results from a sudden, unpredicted increase in an on-line object's popularity. Currently, there is no efficient means within the Internet to deliver Web objects scalably under hot spot conditions to all clients that desire the object. We present peer-to-peer (P2P) randomized overlays to obviate flash-crowd symptoms (PROOFS), a simple, lightweight, P2P approach that uses randomized overlay construction and randomized, scoped searches to locate and deliver objects efficiently under heavy demand to all users that desire them. We evaluate PROOFS' robustness in environments in which clients join and leave the P2P network, as well as in environments in which clients are not always fully cooperative. Through a mix of simulation and prototype experimentation in the Internet, we show that randomized approaches like PROOFS should effectively relieve flash crowd symptoms in dynamic, limited-participation environments.     

IOT就在身边——物联网的应用现状与前景探析

IOT是"万物互联之网",指通过射频识别(RFID)、红外感应器、全球定位系统、激光扫描器等信息传感设备,按约定的协议,把所有物品与互联网连接起来,进行信息交换和通讯,以实现智能化识别、定位、跟踪、监控和管理的一种网络。     

A Systematic Survey on Fog steered IoT: Architecture,Prevalent Threats and Trust Models

International Journal of Wireless Information Networks - Internet of Things (IoT) is considered as a scheme that consists of smart objects furnished with sensors, processing and networking...