期刊文献+
共找到3,894篇文章
< 1 2 195 >
每页显示 20 50 100
Research on Data Privacy Protection Algorithm with Homomorphism Mechanism Based on Redundant Slice Technology in Wireless Sensor Networks 被引量:6
1
作者 Peng Li Chao Xu +2 位作者 He Xu Lu Dong Ruchuan Wang 《China Communications》 SCIE CSCD 2019年第5期158-170,共13页
Wireless transmission method in wireless sensor networks has put forward higher requirements for private protection technology. According to the packet loss problem of private protection algorithm based on slice techn... Wireless transmission method in wireless sensor networks has put forward higher requirements for private protection technology. According to the packet loss problem of private protection algorithm based on slice technology, this paper proposes the data private protection algorithm with redundancy mechanism, which ensures privacy by privacy homomorphism mechanism and guarantees redundancy by carrying hidden data. Moreover,it selects the routing tree generated by CTP(Collection Tree Protocol) as routing path for data transmission. By dividing at the source node, it adds the hidden information and also the privacy homomorphism. At the same time,the information feedback tree is established between the destination node and the source node. In addition, the destination node immediately sends the packet loss information and the encryption key via the information feedback tree to the source node. As a result,it improves the reliability and privacy of data transmission and ensures the data redundancy. 展开更多
关键词 wireless sensor network PRIVACY PROTECTION SLICE technology PRIVACY HOMOMORPHISM collection tree protocol
下载PDF
The Comparative Research on the Location Technology of Wireless Sensor Networks 被引量:3
2
作者 Jijun ZHAO Hua LI Xin ZHAO 《Communications and Network》 2009年第2期114-120,共7页
Wireless Sensor Network (WSN) which is composed of lots of self-organizational intelligence nodes has become new technology of information acquisition and processing. Location technology is one of the key technologies... Wireless Sensor Network (WSN) which is composed of lots of self-organizational intelligence nodes has become new technology of information acquisition and processing. Location technology is one of the key technologies in WSN. There are many kinds of location algorithms currently and the research to performance evaluation and applicability analysis of algorithms has fundamental significance. For this reason, the paper firstly elaborated the performance evaluation indexes of location algorithms, and analyzed the location prin-ciples, characteristics and current fundamental problems to typical and some new location algorithms, and then analyzed and compared some typical location algorithms according to the location accuracy, node den-sity and hardware requirement, obtaining the sphere of application of these algorithms and pointing out the problems which need to be solved in WSN currently. 展开更多
关键词 wireless SENSOR NETWORKS LOCATION technology LOCATION ALGORITHM Performance Evaluation
下载PDF
Wireless location technology and its application 被引量:2
3
作者 Zhao Junhui Wang Dongming 《Engineering Sciences》 EI 2011年第4期32-37,共6页
Wireless location technology is used to locate,track and monitor the location of given target using devices such as the radio frequency identification(RFID) based on WiFi technology and the sensors. And such applicati... Wireless location technology is used to locate,track and monitor the location of given target using devices such as the radio frequency identification(RFID) based on WiFi technology and the sensors. And such applications as long term evolution(LTE) ,wireless local area networks(WLAN) ,RFID and location based service(LBS) are essential in today's wireless communications industry. In this paper,both wireless location technology and its application are proposed,where our experimental research results and theoretical innovation are included. 展开更多
关键词 wireless location technology APPLICATION LTE WLAN RFID LBS
下载PDF
Plant Nutrient Solution Detection System Based on ZigBee Wireless Technology 被引量:1
4
作者 Binyue Chen Fuhai Zhang 《Journal of Computer and Communications》 2018年第6期61-68,共8页
Based on the limitations of traditional plant nutrient solution detection, a ZigBee plant nutrient solution detection system based on CC2530 was developed. This system uses CC2530 as the main control chip, DS18B20 as ... Based on the limitations of traditional plant nutrient solution detection, a ZigBee plant nutrient solution detection system based on CC2530 was developed. This system uses CC2530 as the main control chip, DS18B20 as the temperature sensor for temperature acquisition, PH electrode sensor for PH value acquisition. The experiment shows that this wireless control system equipped with temperature and pH detection sensor collects and samples the main nutrient solution parameters through the main controller, performs wireless communication transmission and terminal communication, and realizes the intelligent detection of plant nutrient solution parameters. This technique of applying wireless sensor network technology to plant factories greatly improves the reliability and stability of the nutrient monitoring system. 展开更多
关键词 PLANT NUTRIENT Solution Detection System wireless Sensor technology ZigBee EMBEDDED Web SERVER
下载PDF
Wireless Mesh Technology and Network 被引量:1
5
作者 Zhu Jinkang (University of Science and Technology of China , Hefei 230027, China ) 《ZTE Communications》 2008年第2期1-6,共6页
Wireless Mesh Network (WMN) has been actively researched and developed as a new network technology to support broadband high- speed multimedia services . This paper discusses WMN technology and applications , and intr... Wireless Mesh Network (WMN) has been actively researched and developed as a new network technology to support broadband high- speed multimedia services . This paper discusses WMN technology and applications , and introduces the basic technologies , typical applications and current development of the WMN. With the future development of wireless distribution technology and network, wireless Mesh technology and network will become the key networking technology and architecture of wireless mobile communications , and will be widely used in various wireless networks with more important roles . 展开更多
关键词 MESH wireless Mesh technology and Network WMN
下载PDF
Research on Wireless Monitoring Technology of the Well Site Environment
6
作者 Bo Chen Chaohao Zhang +2 位作者 Kui Deng Liang Ge Pan Hu 《Communications and Network》 2017年第2期101-110,共10页
Based on the characteristics of wireless communication technology and Wireless Sensor Network, this paper studies the well site environmental monitoring system. The relevant hardware and software of the system are des... Based on the characteristics of wireless communication technology and Wireless Sensor Network, this paper studies the well site environmental monitoring system. The relevant hardware and software of the system are designed to monitor the well site environment, thus preventing downhole accidents. The system uses the wireless ZigBee technology as the transmission mode, and combines the virtual instrument technology to design the upper machine interface. The test results show that the system can monitor the outdoor environment in real time. When the environmental parameters exceed the set value, the corresponding location of the LabVIEW interface will send an alarm. 展开更多
关键词 WELL Site Environmental Monitoring wireless Communication technology ZigBee Data ACQUISITION ROUTER COORDINATOR the UPPER Machine LabVIEW
下载PDF
A Wireless Solution for Train Switchgear Contact Temperature Monitoring and Alarming System Based on Wireless Communication Technology
7
作者 Lexiang Wei Xiaoqing Zeng, Tuo Shen 《International Journal of Communications, Network and System Sciences》 2015年第4期79-84,共6页
We present a temperature monitoring and warning system, which is based on wireless communi- cation technology and applied in train switchgear in this paper. The system is consists of three parts, including wireless te... We present a temperature monitoring and warning system, which is based on wireless communi- cation technology and applied in train switchgear in this paper. The system is consists of three parts, including wireless temperature detection module, inter-vehicle transmission networks module and?remote monitoring server. The switchgear contact temperature data are collected via the wireless temperature detection module and exchanged in inter-vehicle wireless networking by Zigbee modules. Then the temperature of train switchgear cabinets can be monitored remotely through the GPRS wireless communication. 展开更多
关键词 TRAIN SWITCHGEAR wireless TEMPERATURE Monitoring COMMUNICATION technology
下载PDF
E-Governance in Rural India: Need of Broadband Connectivity Using Wireless Technology
8
作者 Kalpana Chaudhari Upena Dalal Rakesh Jha 《Wireless Engineering and Technology》 2011年第3期212-220,共9页
The Information and Communication Technologies play an important role in rural development. The Empowerment of rural communities is crucial for the development of the rural region. Bringing the people in the rural reg... The Information and Communication Technologies play an important role in rural development. The Empowerment of rural communities is crucial for the development of the rural region. Bringing the people in the rural region in the mainstream of the digital technologies to access and adopt modern technologies is a major concern now. Rural Development implies both, the economic development of the people and greater social transformation using electronic governance (e-governance). In order to provide the rural people in Maharashtra with better prospects and opportunities for economic development, agricultural development and management, marketing management, increased participation of rural people in usage and adoption of information and communication technologies (ICTs) is envisaged. This paper aims to explore the nature, role and relevance of the Electronic/Digital Governance using ICTs and wireless technologies for agriculture and rural development in the rural regions. It also aims to study the impact of e-governance on rural development and methods for improving local environmental governance having regard particularly to the range of interests and actors involved in e-governance. The paper examines the current status of electronic governance in Jalgaon district in India. It focuses on development of the model using ICTs/wireless technologies for e-governance of Jalgaon district in Maharashtra state, India. 展开更多
关键词 E-GOVERNANCE WIMAX Application of Information technology wireless technology
下载PDF
5G Wireless: Technology, Standard and Practice
9
作者 Fa-Long Luo Alexander S.Korotkov 《ZTE Communications》 2015年第1期1-2,共2页
5G wireless technology is developing at an explosive rate and is one of the biggest areas of research within academia and industry. With 2G, 3G and 4G, the peak service rate is the dominant metric that distinguishes t... 5G wireless technology is developing at an explosive rate and is one of the biggest areas of research within academia and industry. With 2G, 3G and 4G, the peak service rate is the dominant metric that distinguishes these three generations. 5G will significantly increase the peak service rate but will also dramatically increase energy efficiency, frequency efficiency, spectral effi- ciency, and efficiency of other resources. It will dramatically increase flexibility, ca- pacity, coverage, compatibility and convergence. In this way, it will salisfy the in- creasing demands of emerging big-data, cloud, machine-to-machine, and other ap- plications. The successful development and deployment of 5G technologies will be challenging and will require huge effort from industrry, academia, standardizalion organizations, anti regulatory authorities. 展开更多
关键词 Standard and Practice technology wireless
下载PDF
Ubiquitous Access Technology for Wireless Digital Home Networks
10
作者 Peng Mugen 1Jiang Yong 2Wang Wenbo 1(1. School of Telecommunication Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China 2. China Potevio Co., Ltd., Beijing 100053, China) 《ZTE Communications》 2006年第4期40-46,共7页
As an important branch of telecommunication technology, digital home networks have quickly developed in recent years. Although architecture of the digital home network based on telecommunication networks has been stan... As an important branch of telecommunication technology, digital home networks have quickly developed in recent years. Although architecture of the digital home network based on telecommunication networks has been standardized in China, only wireless access is defined to be allowable. Therefore, it becomes the focus of further research how to establish a wireless digital home network. This article proposes the concept and shows the architecture of ubiquitous access for wireless digital home networks. Moreover, key technologies for ubiquitous access are discussed here, including cognitive radio, the concept of wireless Mesh, generic link transfer mechanism, Quality of Service (QoS) guarantee mechanism, Electromagnetic Compatibility (EMC) and coexistence of heterogeneous systems. 展开更多
关键词 ACCESS Ubiquitous Access technology for wireless Digital Home Networks WPAN HOME
下载PDF
Role of Wireless Handheld Technology by Nurses in Healthcare Environment
11
作者 Abdul Hafeez-Baig Raj Gururajan 《Computer Technology and Application》 2012年第8期550-557,共8页
One of the emerging technologies is wireless handheld technology. Implication of these devices is enormous for business community and healthcare domain is not an exception to this phenomena. This research paper provid... One of the emerging technologies is wireless handheld technology. Implication of these devices is enormous for business community and healthcare domain is not an exception to this phenomena. This research paper provides some useful findings about the use of PDA's in the healthcare environment through actual usage of PDA in the healthcare ward. A qualitative and quantitative approach is adopted to explore these phenomena due to the exploratory nature of the research. Findings of this study identify some of the motivators and issues associated with the wireless handheld technology in healthcare environment. Furthermore, it is also found that these wireless handheld devices can help to improve the quality of care through better decision making processes. This study is limited to only one sate of Australian and further research is needed to see the implication of the findings to wider community and other domains in the Australian environment. 展开更多
关键词 Smart technology ICT (information and communication technology wireless handheld devices healthcare adoption andactual use decision.
下载PDF
A Review of Road Accidents Detection through Wireless Technology—5G, MIMO and Internet of Things
12
作者 Stephen Ojo Samuel Olugbade Taiwo P. Ojo 《Open Journal of Applied Sciences》 CAS 2022年第12期1968-1978,共11页
Road transport is been used for moving people and all kinds of goods throughout the world. However, it is one mode of transportation that is prone to accidents and it faces a plethora of never-ending challenges, such ... Road transport is been used for moving people and all kinds of goods throughout the world. However, it is one mode of transportation that is prone to accidents and it faces a plethora of never-ending challenges, such as the frequent loss of lives and valuables when accident occurs. The best course of action to handle these issues is to set up an autonomous incident detection system using wireless communication, 5G technologies and the Internet of Things. IoT is a seamless technology that increases the connectivity between humans and machines. It is web-based, and improves communication between vehicle to vehicle, vehicle to infrastructures, transfer of data and information to predict incident occurrences through various networks and frameworks such as eCall, OneM2M and integration of mobile broadband. Additionally, internet of things is being adopted for public safety;for instance, it can speed up first responders’ response times to situations by displaying the best routes to a scene of an accident. The rapid development of 5G is happening in parallel with developments of internet of things (IoT), artificial intelligence (AI), and smart platforms for novel applications such as mission-critical communications. 5G is a new generation technology that operates on the Ultra High Spectrum Band UHSB. It is an innovation that uses the pedestrians-vehicle-road-cloud, and the communication between vehicle locations and temperature of high-quality connection. It is essential for intelligent transport systems because it allows for information sharing, prediction of incidences as safety is the primary concern of road transport. This review examines accident detection through 5G technology, integrated mobile broadband, and multiple inputs multiple outputs (MIMO) wireless system. Finally, we conclude by examining recent technology, challenges, present and future research trends. 展开更多
关键词 5G Internet of Thing (IoT) wireless Communication technology Road Transportation
下载PDF
Cognition Based Reconfigurable Wireless Network Technology
13
作者 Feng Zhiyong, Su Meiyu, Zhang Qixun (Wireless Technology Innovation Institute of Beijing University of Posts and Telecommunications , Beijing 100876 , P . R . China ) 《ZTE Communications》 2009年第2期1-5,共5页
The End-to-End Reconfigurability (E2R) project aims at realizing the convergence of the heterogeneous radio networks and the optimal utilization of the radio resources. With the continuous development of E2R technolog... The End-to-End Reconfigurability (E2R) project aims at realizing the convergence of the heterogeneous radio networks and the optimal utilization of the radio resources. With the continuous development of E2R technology and cognitive theory, the evolution from existing radio networks to future reconfigurable radio networks with the cognitive ability becomes possible. Nowadays the research aspects of E2R include the system architecture of reconfigurable radio networks and some key technologies for their evolution. 展开更多
关键词 REAL Cognition Based Reconfigurable wireless Network technology
下载PDF
A Wireless Distributed Condition Monitoring System Based on Bluetooth Technology
14
作者 WANG Jin-tao JING Min-qing XIE You-bai 《International Journal of Plant Engineering and Management》 2002年第3期145-151,共7页
Based on the discussion of bluetooth and network technology, this paper proposed an entire framework of a wireless distributed monitoring system by combining the characteristics of industry application. The feasibilit... Based on the discussion of bluetooth and network technology, this paper proposed an entire framework of a wireless distributed monitoring system by combining the characteristics of industry application. The feasibility of putting this kind of system in practice is discussed. The wireless distributed monitoring system can enhance the performance of condition monitoring more than the traditional one used now. 展开更多
关键词 distributed monitoring system wireless communication bluetooth technology
下载PDF
Key Environmental Factors Monitoring System of Low-power Greenhouse Based on WSN Technology
15
作者 柳军 陶建平 吕晓兰 《Agricultural Science & Technology》 CAS 2016年第2期449-452,共4页
A low-power environmental monitoring system based on WSN technology is proposed to effectively monitor the environmental status and ensure the healthy growth of greenhouse crops in the greenhouse. The system performs ... A low-power environmental monitoring system based on WSN technology is proposed to effectively monitor the environmental status and ensure the healthy growth of greenhouse crops in the greenhouse. The system performs dynamic mon- itoring on the environmental data of temperature, humidity, illumination, soil tempera- ture and humidity of the greenhouse, and it reduces the energy consumption by us- ing solar energy and lithium battery as the power supply mode and dynamic power management algorithm combined with improved routing protocol. Stable and reliable, the system could effectively monitor the key environmental factors in the green- house, making it of certain promotion value. 展开更多
关键词 Environmental monitoring GREENHOUSE wireless sensor network WSN technology Key factor
下载PDF
基于NB-IoT和ZigBee的物联网智能建筑环境监控方法 被引量:5
16
作者 任远林 《齐齐哈尔大学学报(自然科学版)》 2023年第2期1-5,24,共6页
现阶段,物联网技术已经广泛应用到智能建筑行业中,但在环境监控方面依然较为薄弱,智能建筑安全水平仍然不高,提出基于窄带物联网(NB-IoT)和ZigBee的物联网智能建筑环境监控方法。融合NB-IoT和ZigBee无线通信技术生成无线组网,将智能传... 现阶段,物联网技术已经广泛应用到智能建筑行业中,但在环境监控方面依然较为薄弱,智能建筑安全水平仍然不高,提出基于窄带物联网(NB-IoT)和ZigBee的物联网智能建筑环境监控方法。融合NB-IoT和ZigBee无线通信技术生成无线组网,将智能传感器作为数据采集节点,获取智能建筑环境监控数据,并对获取到的数据进行预处理。搭建多层簇网络结构,动态化选取簇头,融合全部环境监控数据并构建智能建筑风险矩阵。通过计算智能建筑风险数值评估建筑风险,从而实现智能建筑环境监控。实验结果表明,应用该方法后环境监控网络能耗更低,环境监控数据融合时间更短,智能建筑风险评估结果更加接近实际评估结果,充分证实了该方法具有较好的智能建筑环境监控效果。 展开更多
关键词 nb-iot无线通信技术 ZIGBEE无线通信技术 智能建筑 智能传感器 环境监控 风险评估
下载PDF
Key Technologies of Wireless Heterogeneous Network Security 被引量:2
17
作者 Wu Meng,Ji Lina,Wang Kun(Nanjing University of Posts and Telecommunications,Nanjing 210003,China) 《ZTE Communications》 2008年第3期34-39,共6页
Convergence and collaboration of heterogeneous networks in the next generation public mobile networks will be a subject of universal significance. Convergence of heterogeneous networks, as an effective approach to imp... Convergence and collaboration of heterogeneous networks in the next generation public mobile networks will be a subject of universal significance. Convergence of heterogeneous networks, as an effective approach to improve the coverage and capacity of public mobile network, to enable communication services, to provide Internet access and to enable mobile computing from everywhere, has drawn widespread attention for its good prospects in application. Construction of security system for wireless heterogeneous networks and development of new security models, key security techniques and approaches are critical and mandatory in heterogeneous networks development. Key technology of wireless heterogeneous networks security covers security routing protocol, access authentication, intrusion detection system, cooperative communication between nodes, etc. 展开更多
关键词 Key technologies of wireless Heterogeneous Network Security NODE WLAN
下载PDF
Wireless Mesh Networks and Cooperative Relaying Technologies 被引量:2
18
作者 Jiang Xiaokui (Wireless Pre- research Department of ZTE Corporation, Xi’an 710065, China ) 《ZTE Communications》 2008年第2期20-24,共5页
The Wireless Mesh Network (WMN) has become a focus in research of wireless broadband communications . In a switching technologies - based wireless Mesh network, the entire network is regarded as an IP subnet, so it ca... The Wireless Mesh Network (WMN) has become a focus in research of wireless broadband communications . In a switching technologies - based wireless Mesh network, the entire network is regarded as an IP subnet, so it cannot be applied in situations where large coverage is required . The use of cooperative relaying technologies can improve the transmission rate and reliability of wireless link; while the wireless Mesh network, once integrated with cooperative relaying technologies and routing technologies , can improve its spectrum efficiency and cover a wide area . However, there are many problems to be solved with respect to standardization, key technologies research and industrialization. Therefore , the application of cooperative relaying technologies in wireless Mesh networks is still a great challenge . 展开更多
关键词 MESH wireless Mesh Networks and Cooperative Relaying technologies WMN
下载PDF
Scalability Technologies for Wireless Mesh Networks 被引量:1
19
作者 Hu Honglin (Shanghai Research Center for Wireless Communications , Shanghai 200050, China ) 《ZTE Communications》 2008年第2期11-14,共4页
The continuous increase of data transmission density in wireless mobile communications has posed a challenge to the system performance of Wireless Mesh Networks (WMNs ). There is a rule for wireless Ad hoc networks th... The continuous increase of data transmission density in wireless mobile communications has posed a challenge to the system performance of Wireless Mesh Networks (WMNs ). There is a rule for wireless Ad hoc networks that the average node capacity decreases while the number of nodes increases , so it is hard to establish a large - scale wireless Mesh network. Network scalability is very important for enhancing the adaptive networking capability of the wireless Mesh network. This article discusses key scalability technologies for Mesh Base Stations (BSs ) and Mesh Mobile Stations (MSs ), such as channel allocation, intelligent routing , multi- antenna , node classification, Quality of Service (QoS) differentiation and cooperative transmission. 展开更多
关键词 MESH QOS Scalability technologies for wireless Mesh Networks WMNS
下载PDF
Key Technologies of Wireless Mesh Network 被引量:1
20
作者 Wu Fan, Mao Yuming, Zhang Ke (University of Electronic Science and Technology of China , Chengdu 610054, China ) 《ZTE Communications》 2008年第2期25-29,共5页
The Wireless Mesh Network (WMN) is a special kind of Ad hoc network with a hierarchical network structure . Its backbone transmission network has such characteristics as multi- hop , topology stability, no electricity... The Wireless Mesh Network (WMN) is a special kind of Ad hoc network with a hierarchical network structure . Its backbone transmission network has such characteristics as multi- hop , topology stability, no electricity supply constraints , convergence of flows . Improving the spatial reuse of spectrum is an effective approach to increase network capacity. The linchpin of this approach is to effectively control the interference range between wireless links . The multi- channel networking technology is one of the key technologies of WMN, and its core is the channel allocation through which the channel utilization can be maximized . The mutual interference between multi- hop wireless links should be considered when choosing the routing metrics in WMN. Through the load - balancing routing method , the network capacity and throughput of nodes can be improved . 展开更多
关键词 MESH WMN Key technologies of wireless Mesh Network
下载PDF
上一页 1 2 195 下一页 到第
使用帮助 返回顶部