最新刊期
卷 30 ， 期 11 ， 2014
- 摘要：In the field of cloud computing services, one of the most important problems concerned by the users is the security of their sensitive data stored in the cloud. The security risks when sensitive data is in a cloud environment were studied, and the sensitive data protection requirements in cloud environments were analyzed. On the basis of sensitive data classification and grading, technical solutions were given to protect sensitive data in cloud environments.关键词：security of cloud computing;sensitive data;data masking992|3813|0更新时间：2024-06-05
- 摘要：Cloud computing billing issues have attracted much attention for the deployment of cloud computing services. Based on the state of current cloud platforms, a billing system was designed via three lays including data collection layer, process layer and presentation layer. Then the billing system was illustrated in a detailed way, and a price model which combined the interest of both service providers and users was proposed. Finally the features of the system were summarized.关键词：cloud computing;billing system;data collection;price model797|2540|0更新时间：2024-06-05
- 摘要：Combined with the existing mainsream open-source deployment tools, a kind of OpenStack auto-deployment architecture based on Workflow was proposed. According to this architecture, the system can establish the deployment strategy to realize the cloud system components customized deployment and govern the physical resources, software resources and network resources of the cloud system, solved the node deployment process reliability, scalability and customizable problem.关键词：cloud computing;OpenStack;workflow;auto-deployment630|1896|0更新时间：2024-06-05
- 摘要：For cloud computing operating environment, cloud service providers leased cloud resources provider of resources, to provide the service to the user of the scene, taking the optimization of a cloud service provider costs, increase the operation profit as the goal, the design of the virtual machine resource allocation method for cost optimization was proposed. The method comprehensively considered the spot, appointment and on-demand resource allocation model, control factor was introduced to avoid the resource risk, the resource allocation scheme for the optimization of the cost was formulated. The proposed method meets the users' satisfaction, effectively realizes the optimization of virtual machine resource cost, increases the cloud service provider revenue.关键词：cost minimization;cloud computing;resource allocation;data center752|1409|0更新时间：2024-06-05
- 摘要：Based on the current research on mobile CDN and core network virtualization, the method of deploying CND service nodes on virtualized EPC resources were discussed. First, the deployment solution of MCDN under the LTE was analyzed, as well as the virtualization solution of core net. Then a MCDN integration architecture was proposed on the basis of virtualized EPC resources, which can archive resources sharing and system expansion of MCDN service nodes by using virtualization technology and improve the reliability and efficiency of LTE and CDN.关键词：evolved packet core;mobile content;distribution network694|1183|0更新时间：2024-06-05
- 摘要：The NFV and SDN were introduced, the current work in network virtualization was analyzed and its requirements were concluded. Aimed at network architecture of mobile core network, and then the architecture of core network virtualization were proposed and brief introduction was made which was very import to guide the evolution of core network.关键词：mobile core network;virtualization;virtual network function657|1366|0更新时间：2024-06-05
Cloud computing technology and Applications
- 摘要：Open government data（OGD）is a new evolving research field in smart city. As an important part of smart city, open government data allows new participation and collaboration in data reuse and utilization to create added value service. The key technologies of open government data include new information technologies such as metadata management, linked data, data visualization and social networks. Meanwhile, open government data propose additional infrastructure demands in smart city such as data center, network facilities and so on. In the open government data scheme, resources are utilized in a more intensive and efficient way. The state-of-the art of open government data in smart city was proposed. Moreover, the demand and technologies of open government data were introduced. Last but not least, the architecture design of open government data in smart city was illustrated.关键词：open government data;smart city;metadata management;linked data;data visualization;social network712|1817|0更新时间：2024-06-05
- 摘要：M2M is one key technology for smart city. Both communication characteristics and business characteristics of M2M have raised new requirements for mobile networks. For communication characteristics, the network improvement work by 3GPP and 3GPP2, two different network adaptation ways, and three phases of network evolution for M2M were discussed. For business characteristics, SCS from 3GPP, manageable M2M communication pipe, and GSMA eSIM were described.关键词：machine to machine;machine-type communication;service capability server;eSIM;OTA;SM-DP;SM-SR626|1086|0更新时间：2024-06-05
- 摘要：In the field of intelligent transportation, vehicle scheduling is a complex issue with multi-path, multi-types of vehicles and multi-destination. In this process, some time-varying attributes and dynamic indicators have a direct impact on the scheduling process and result. A scheduling network model, with multi-path, multi-types of vehicles, multi-destination and dynamic factors was proposed. The new modeling elements, virtual node and virtual path, were used for mathematical description and graphical expression of vehicle scheduling network model. Priority-based scheduling network was presented, and the validity of the model was verified.关键词：intelligent transportation;vehicle scheduling;network model;hierarchical network625|1156|0更新时间：2024-06-05
- 摘要：The situation of public emergency call service in Europe, USA and Russia etc was described. And it made analysis for technology indexes, telecommunication technologies and vehicle electronic technologies involved in emergency call. Then the development tendency of next generation emergency call technologies was described and some advices for how to construct public emergency call in China were given.关键词：internet of vehicle;accident;emergency rescue;emergency call;eCall749|2160|0更新时间：2024-06-05
- 摘要：The macro environment for the development of domestic tourism industry and the present situation of product chain were introduced. The target of cloud platform for wisdom travel was discussed. The key point of platform was analyzed and the architecture of cloud platform for wisdom travel was proposed.关键词：wisdom travel;tourism industry product chain;cloud data center of tourism668|2499|0更新时间：2024-06-05
Smart city
- 摘要：To solve the problem in measuring the similarity of heterogeneous information networks, a similarity measuring algorithm was proposed. It calculates the difference between the maximum common sub-graph and minimum common hyper-graph, based on feature sub-graph of the current node. The algorithm takes graph theory as its foundation, set different weight to different kinds of edges, considers nodes information as well as graph to topological information, and makes full use of the information in heterogeneous network. The result shows that the proposed algorithm has wonderful effectiveness and efficiency.关键词：heterogeneous information network;graph similarity;similarity measurement;feature sub-graph643|850|0更新时间：2024-06-05
- 摘要：By developing the classical wire-tap channel, an approach was proposed to compute the secrecy rate between a sensor node and its responsible cluster head in the clustered wireless sensor network. A non-cooperative secrecy rate game model was formulated to reflect on the interaction relationship between sensor nodes. Using evolutionary game theory, a selection scheme in which a power level can be adaptively selected by a sensor node was developed. Moreover, a corresponding algorithm of secrecy rate adaptation was proposed. Numerical experiments show that the proposed algorithm adaptively adjusts the secrecy rate of the sensor node. Therefore, a novel method to guarantee the confidentiality of wireless sensor network data was provided.关键词：wireless sensor network;physical layer security;secrecy rate;evolutionary game455|587|0更新时间：2024-06-05
- 摘要：The distributed data collection problem for CRN was studied, which has not been addressed before. First, the proper carrier-sensing range（PCR）for SU was studied. By working with this PCR, a SU can successfully conduct data transmission without disturbing the activities of PU and other SU. Subsequently, based on the PCR, an asynchronous distributed data collection（ADDC）algorithm with fairness consideration for CRN was proposed. ADDC collects data of a snapshot to the base station in a distributed manner without any time synchronization requirement. The algorithm is scalable and more practical compared with centralized and synchronized algorithms. The comprehensive theoretical analysis shows that ADDC is order-optimal in terms of delay and capacity, as long as SU has a positive probability to access the spectrum. Finally, extensive simulation results indicate that ADDC can effectively finish a data collection task and significantly reduce data collection delay.关键词：cognitive radio network;data collection;distributed algorithm;fairness;delay;capacity360|518|0更新时间：2024-06-05
- 摘要：Spectrum prediction is one of the key technologies in cognitive radio（CR）systems. This technology can reduce considerable energy consumed by spectrum sensing, and improve the overall system's spectrum utilization. Aiming at the low accuracy and invalid prediction problems of spectrum prediction in cognitive radio, a new prediction method was proposed by integrating support vector machine（SVM）which was based on statistical learning theory（SLT）and structural risk minimization principle（SRM）. The channel status is forecasted by utilizing the excellent forecasting performance of the model in small sample and nonlinear data of SVM. The results show that by avoiding invalid prediction, the spectrum utilization can also be improved, and the forecasting accuracy is better than model based on back propagation（BP）, thus the proposed algorithm is practicable and flexible for spectrum prediction in cognitive radio.关键词：cognitive radio;spectrum prediction;support vector machine304|903|0更新时间：2024-06-05
- 摘要：In the cloud ecosystem, regulating virtual machine's position can help reduce the communication cost between virtual machines and the waste of physic machine's resource. Considering the target of placement in the initialization placement,an initialization placement algorithm base on tenant was proposed. Combined the algorithm with runtime placement algorithm, the placement goal was realized. Simulation results show that the proposed algorithm reduces the number of virtual machines that need to reposition and the cost of migration.关键词：cloud computing;communication cost;virtual machine placement355|381|0更新时间：2024-06-05
- 摘要：Current smart home system based on internet of things only provides a solution to interconnect different appliances inheterogeneous networks. It still faces a lot of challenges, such as single management platform, poor scalability, and low user experience. A novel smart home management system was demonstrated, which based on a home wireless network using ZigBee technology. More importantly, the RESTful Web Services was also imported to enhance the scalability and cross-platform capability of the system. In addition, an app based on Android platform was developed for users to enhance the user experience ofmanaging smart home.关键词：smart home;RESTful Web Services;ZigBee, Android456|971|0更新时间：2024-06-05
- 摘要：Trojans inject systems and launch various attacks, such as eavesdropping secret information, tampering with system configuration etc., which threats to system security seriously. A novel anti-Trojan malware mechanism based on characteristic behavior and cosine similarity was proposed. Firstly, according to the initial rules base and application behavior, the mechanism regularized the operations of application, and then, the mechanism invoked rules to judges suspicious behaviors based on current rules base and operational impact. Once the application was considered as Trojan malware, the system would dispatch the appropriate algorithm for processing. The mechanism triggered by sensitive behaviors, and had the active prevention function and self-learning function. The analysis and experiment show the solution can detect Trojan malware effectively.关键词：Trojan malware;behavior detection;regularization;security534|1859|0更新时间：2024-06-05
- 摘要：Cloud storage is an effective solution to the storage performance bottleneck, but it also gives rise to problems of data security and privacy protection. In order to solve this problem, a cloud storage data protection mechanism based on a fingerprint cube algorithm was developed. Mechanism through the user's fingerprint characteristic value control cube rotation to encrypt files, and then use threshold segmentation technique to split the file into small blocks to each storage server. If it is expected to restore the original file, check the integrity of each block at first, and then find no less than the threshold number of file blocks, which leads to recover the full document. The mechanism protects the privacy of user data stored in the cloud, but also improve the anti-destruction capability and flexibility of cloud storage system.关键词：cloud storage;data security;fingerprint cube algorithm;threshold segmentation417|554|0更新时间：2024-06-05
research and development
- 摘要：Micro-power（short-range radio communication）wireless devices are widely used, and numerous, they play a more and more important role in people's daily life. But there are still some problems in its supervision and administration, the market situation is also chaotic. The management status of the micro-power equipment was analyzed, and some market surveys were made. The problems and issues for micro-power radio equipment in the supervision were summarized. Finally some countermeasures and suggestions were put forward.关键词：short-range radio communication device;market situation;specification management395|925|0更新时间：2024-06-05
Overview
- 摘要：The scope of sensitive information of carriers' big-data platform was discussed. The methods to protect sensitive information were described. The key technologies and mainstream technical methods in the field of research were summarized. Based on the layered architecture of carries big-data platform, technical solutions for different sensitive information protection technology were designed.关键词：sensitive information protection;carriers' big-data platform;anonymization;privacy384|1011|0更新时间：2024-06-05
- 摘要：With the commercial use of 4G, the research of 5G is being carried out in full swing in the industry. 5G will have a revolutionary change in the bandwidth, speed, intelligence and integration. So on the security front, 5G inevitably will have corresponding change. The security architecture, the security key technologies and the future research direction of the security mechanism of 5G were discussed.关键词：5G security;big data;NFV/SDN433|1705|0更新时间：2024-06-05
- 摘要：The key affecting factors of forwarding performance for NFV scenario were discussed, after parts of open source technologies on forwarding performance optimization were introduced briefly. An integrated NFV system end-end optimization scheme was put forward by means of serial open source software suite. Moreover, experiment reached to evaluate DPDK technology in single server case was did. It shows a remarkable increase on forwarding performance in single server achieved by open source suite. Studies provide a valuable reference NFV system design for both SDN appliance developer and network operators.关键词：network function virtualization;software defined networking;network virtualization;performance optimization430|2021|0更新时间：2024-06-05
- 摘要：Security threats of novel data center using software-defined networking were analyzed, and then three protection phases for defending were proposed, which solved unique problems and overcame current security product defects, and finally a software-defined security architecture to defend various quick and advanced attacks was designed.关键词：network virtualization;security;software-defined networking259|459|0更新时间：2024-06-05
- 摘要：On the basis of analyzing the real use cases of network traffic optimization, an idea and system architecture were presented, which abstracted the current network to the overlay network and used the SDN controller to control the overlay network for smart traffic steering and optimization according the policies defined by users. This solution can be widely applied in multiple different type of IP networks, and utilize the mature protocols to migrate the existed network to SDN smoothly with the benefits from SDN.关键词：software defined networking;overlay network;traffic fine operation339|1032|0更新时间：2024-06-05
- 摘要：Firstly, the current situation on big data practice of telecom operators was introduced. Then challenges faced by local telecom operators when developing big data were summarized. Furthermore, the unified operation oriented big data strategy for telecom operators was proposed. Finally, inventory of big data assets and the architecture of big data service platform were described in detail.关键词：telecom operator;big data strategy;big data asset;big data service platform427|2289|0更新时间：2024-06-05
- 摘要：As a converged technology, the packet enhanced optical transport network（POTN/PE-OTN）technology is able to meet the rapidly growing demand for bandwidth and multi-service bearing with differentiated quality of services. The statuses of POTN/PE-OTN technology standards were introduced. The architecture of POTN/PE-OTN equipment and the possible implementations were analyzed. The architecture of networking with POTN/PE-OTN technology in the metropolitan area network was discussed.关键词：packet enhanced optical transport network;network architecture;optical transport network479|1309|0更新时间：2024-06-05
- 摘要：Currently the incidence of using telephone for fraud is growing up to a new high level, cause huge losses to the people property. According to the root cause analysis, telephone fraud mechanism and behavior characteristics were discussed, network security model and the control system were researched, the recommending of core network number protection ability to ascend was proposed, and a set of early warning and intercept technology system based on big data model of signaling was developed. The real network testing and effect, as well as the key operations management countermeasures were presented.关键词：telephone fraud;prevention and control;early warning;intercept;countermeasure419|2769|0更新时间：2024-06-05
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