最新刊期
卷 30 ， 期 10 ， 2014
- 摘要：Multiple antenna technology is considered as one of the few that has the potential to provide relatively large gains in wireless mobile network. The recent progress of using multiple antenna technology in commercial LTE network in China was discussed. By focusing on LTE-FDD network, details of simulation results and measurements from commercial networks were provided to demonstrate the obtainable gains in the real world when compared with theoretical predictions. Based on the current state of art, an outlook at the future trends of the multiple antenna technology with discussions on road maps, challenges and standard progress was given.关键词：LTE;multiple antenas;coverage enhancement;massive MIMO1662|2635|0更新时间：2024-06-05
Viewpoint focusing
- 摘要：Big data era brings more opportunities and challenges to the telecom operators. In order to effectively support the accurate analysis and decision making, visualization technology is in urgent need of large data to extracting useful information from the increasingly large data quickly. The features of new technology of mobile internet data visualization were summarized, and combined with typical scenes of more mobile internet customer portrait, practical application of data visualization technology was deeply discussed.关键词：telecom operator;mobile internet;data visualization;big data925|2409|0更新时间：2024-06-05
- 摘要：Based on the research of the two group of relationship between big data and small data, big data analysis and small data analysis, and made the point that the telecom enterprise should take advantage of its own small data based on its business problem, the analysis and application development strategy of telecom enterprise big data was proposed. The telecom enterprise should select, capture and store the useful big data, combine it with the small data, then mine the value of the data, which is becoming more comprehensive, granular and perfect because of being combined. The strategy can support telecom enterprise to realize the enterprise real-time marketing, accurate marketing, smart pipeline operation and customer experience management.关键词：big data;small data;eal-time marketing;accurate marketing;customer experience management;smart pipe operation and management740|1282|0更新时间：2024-06-05
- 摘要：Based on the game platform data processing needs,the diversified mix of large data processing architecture was built based on distributed+relational data,for high-value-density structured data using relational data processing;lots of disorderly unstructured data processing was using a distributed mechanism. Two types of data to achieve the orderly were unified handed over to traditional relational database model to build relationships and showed that could be achieved through efficient handling of business analysis data, but also to meet the scale of disorderly log data processing requirements. The overall architecture, the main features and key technologies were analyzed, so as reference was provided for other business data analysis platform for large construction and renovation.关键词：big data;game platform;data mining702|2987|0更新时间：2024-06-05
- 摘要：The personalized recommendation system was presented, which was based on data mining technology in mobile game platform, including the game data acquisition, data storage, data cleaning, data mining, and the cosine similarity algorithm was used to improve the similarity of the games. The mechanism can effectively improve the accuracy of game recommendation, enhance user stickiness, and create more value for the game platform.关键词：big data;mobile game;personalized recommendation1095|4021|0更新时间：2024-06-05
- 摘要：Big data is transiting from emerging technology to large-scale production operations. The implementation and operation of shared infrastructure platform becomes key factors for successfully deploying big data. Analysis was made for infrastructure planning, integration and operation. Methodology was given for implementing a better shared platform for large scale big data application.关键词：big data;infrastructure;operation615|1071|0更新时间：2024-06-05
- 摘要：An analytical model was discussed on energy usage analysis and optimization, dedicated to fast implementing at low cost for the telecom operator based on its current facilities, which may also improve power usage monitoring and data supported managing.关键词：energy usage analysis;big data;machine learning;telecom operator580|1855|0更新时间：2024-06-05
- 摘要：The process and methods of big data improved recommendation quality in music applications were focused. The individual music score system referring RFM model was described. The sparsity and overlapping and reliability was applied to adjust recommendation algorithm, combined soaring words and content labels and filtering rules with mixing recommendation to resolve the common problems of recommendation system.关键词：big data;RFM model;collaborative filtering recommendation488|1859|0更新时间：2024-06-05
- 摘要：The existing systems usually adopt private distributed architectures, which face scalability, openness, cost and latency problems. The development of big data technology such as Spark offers new opportunity for large scale NetFlow processing systems. A new analysis system based on Spark platform was proposed and the effectiveness of the method was verified. The experimental results show its superior performance.关键词：NetFlow;Spark;traffic analysis564|1858|0更新时间：2024-06-05
Topic: big data technology and Application
- 摘要：Ultra-high-speed, ultra-large-capacity and ultra-long-haul（3U）optical transmission as a new mode of communication can greatly promote the next generation of optical internet and broadband mobile communication network development and technological progress, therefore 3U has become the focus of international high-tech intellectual property and competition ground. Starting from the background and significance of 3U research, the three scientific problems in 3U were given, and the architecture, basic theory and key technology of 3U optical transmission were introduced. Finally, the verification platform was introduced together with the important experiments completed on the platform, as well as the industrial application of the innovative achievements.关键词：ultra-high-speed;ultra-large-capacity;ultra-long-haul;optical transmission;multi-wavelength source;high spectral efficiency;optical coding;optical modulation;optical parametric amplification;nonlinear suppression;dispersion management783|2377|0更新时间：2024-06-05
- 摘要：With the explosive growth of internet data and the increasing user demand, the traditional search methods has been difficult to meet user's needs in the mobile search field. In order to achieve the intelligent search based on semantic understanding, it is urgent to improve the level of search from word-based to semantic-based. Facing to the open internet data resources, an intelligent search pattern on “dynamic knowledge network + calculation operator”was proposed. Then, dynamic knowledge network was described in detail, which included theoretical basis, structure model, system model and features. Furthermore, it was presented about the basic structure of intelligent search based on dynamic knowledge network, which provided the support about theory and model for intelligent search. Finally, the main problems and challenges in the future were explained.关键词：intelligent search;knowledge network;hyper-graph;semantic understanding433|1074|0更新时间：2024-06-05
- 摘要：To make service convenient and improve user experience degrees, recommendation service has become more and more important to users in the location-based social network（LBSN）. An improved potential friends recommendation in LBSN, which is based on the relationship among friends and the similarity of locations, was proposed. First of all, the user interest pointsin each position weight with friends' relationship, check-in feature and historical recordwere calculated. Then position weight and the friend relationship were used to calculate the friends' similarity and location similarity. Finally, potential friends to user based on the friends' similarity and location similarity were recommended. The experimental results show that the proposed model is effective.关键词：location-based service;ocation-based social network;potential friend;recommendation model;location similarity412|1118|0更新时间：2024-06-05
- 摘要：With the aim at optimizing view consistency in P2P distributed virtual environments, a random broadcasting algorithm for distributing state-updating message among users was proposed. By considering the limited network bandwidth and communication delay, which may affect the users' sensing of the real-life experience and the real-time interaction for the participants, the method was given based on the pre-established random geometric graph to distribute the state-updating messages. The greedy routing algorithm can find the forwarding route and obtain the message-spreading time between the source and the destinations. By compared with several other algorithms, the experiment results show that the random broadcast algorithm can reduce the event rates of the time-space inconsistency and improve the system performance.关键词：P2P;distributed virtual environment;view consistency;random geometric graph312|644|0更新时间：2024-06-05
- 摘要：Through analysis of behavioral characteristics of churn nodes in wireless mesh network, a schema was proposed to improve the speed limit caused by congestion. The basic idea of the approach is to heuristically select the service nodes with lowest churn rate when it accesses the streaming media, where the churn rate is predicted through a utility function. In addition, a failure recovery scheme for the churn nodes with heavy congestion was proposed. A node was considered failure and replaced with another peer by migrating the services on it whenever the node encounters congestion and its churn rate exceeded a predefined threshold. Simulation results show that the scheme can not only efficiently solve the problem of high congestion,single failure,and low delivery efficiency,but also significantly improve the QoS of the wireless mesh network,at the same time to verify the objective existence of churn.关键词：wireless mesh network;transmission rate;churn＆congestion;neighbor selection;failure recovery371|1192|0更新时间：2024-06-05
- 摘要：Joint clock synchronization and localization based on the time of arrival（TOA）measurements is a very important research topic for many wireless sensor network applications. The exponentially distributed link delay is usually used to describe the practical network link condition. The joint maximum likelihood estimation（JMLE）on clock synchronization and localization problem was first proposed based on the TOA measurements. JMLE was optimal only for Gaussian delay, as for the exponentially distributed delay, the joint best linear unbiased estimation （JBLUE）was then proposed. The result is derived via simulation: JMLE and JBLUE are always superior to the latest joint algorithm, with the highest estimation accuracy.关键词：joint maximum likelihood estimation;joint best linear unbiased estimation;exponentially distributed;localization;synchronization246|607|0更新时间：2024-06-05
- 摘要：Virtual router is a core network device of future internet, which runs multiple virtual routers in parallel on a common physical router platform. It is aimed at the looking up technology on virtual router's forwarding table, which using the way of set partition to cut apart the prefixes set into two sets that realized using SRAM and DRAM respectively. Various solutions were analyzed, and new method that to use mark bit solving the problem of inefficient looking up overlapping prefixes in SRAM, was proposed. The experiment results show that the solution greatly reduces storage space, and optimizes the overall effects.关键词：virtual router;virtual network;forwarding table lookup;set partition270|603|0更新时间：2024-06-05
- 摘要：The traditional association rules mining algorithms preferred to applying single sliding time window, and the mined alarm association rules were high support-high confidence. To solve this problem, a method was proposed to calculate comprehensive related confidence between the time adjacent items by the confidence fusion algorithm. Then generated alarm transactions were generated based on the calculated results, which enhanced alarm correlation within a transaction. The proposed approach can reduce the choice of support requirement and mine low support-high confidence association rules effectively. Based on h-confidence theory, interesting alarm association rules were screened. Experimental results showed the feasibility and effectiveness of this approach.关键词：alarm association rule;comprehensive related confidence;h-confidence theory329|745|0更新时间：2024-06-05
Research And Development
- 摘要：With next-generation mobile communication networks evolving to high dense, amorphous and heterogeneous network, matching the demand for business with the supply of resources has been one of the challenging problems of resource management in heterogeneous network（HetNet）, namely load balancing problem. The general load balancing problems are formulated. Following that, a comprehensive taxonomic approach to classifying algorithms of load balancing was proposed, based on which detailed analyses and thorough comparisons for the main strategies in recent years were made; and several schemes to reduce signaling overhead were compared and analyzed in the load balancing process. Finally, research results were summarized, and some new issues in load balancing strategies conforming to the trends to be further studied were pointed out.关键词：LTE-Advanced;heterogeneous network;load balancing374|938|0更新时间：2024-06-05
Overview
- 摘要：5G network architecture is an important topic in the industry. Virtualization, cloud computing and SDN are new technologies that enables innovative architecture design. Motivated from requirement, five key questions were listed: centralization or distribution, access network and core network convergence, network orchestration, NFV& SDN impact to the architecture, evolution or revolution. Some initial analysis was provided.关键词：5G;network architecture;network function virtualization;software defined networking;virtualization;packet network evolution308|1404|0更新时间：2024-06-05
- 摘要：Wearable device service got a fast development in the last two years. But for the mobile operator, the value of wearable device, as well as the way to get into this business, is still unclear. The technologies and market development of wearable device were analyzed. After locating the position of mobile operator in the value chain, the best way to get involved this business, the problem happens in the operation of wearable device service and solution were also discussed.关键词：wearable device;Internet of things;smart glass;smart watch;Android922|4650|0更新时间：2024-06-05
- 摘要：Access service configuration is almost most complicated procedure in service provision process. In past few years, many cases of access service configuration were analyzed, and some factors were found to make rules. These rules could guide the action of configuration to meet the complex needs of customers. The rule engine was used to run these rules in resource management system.关键词：resource allocation rule;OSS domain;behavior pattern;behavior rule;rule base;rule engine291|559|0更新时间：2024-06-05
- 摘要：The long term evolution （LTE）network is an advanced mobile network defined in 3GPP. The node density of LTE network is higher than traditional 2G and 3G mobile networks, because not only the inter-sector distance is smaller, but also more and more small cells are integrated into the network. The mobility management has become a challenge in a dense heterogeneous network. An advanced handover mechanism to solve the high handover failure rate problem in LTE heterogeneous network（HetNet）was proposed. Simulation results show that the proposed mechanism increases the handover performance in HetNet.关键词：LTE;handover;heterogeneous network;measurement276|650|0更新时间：2024-06-05
- 摘要：Combined with the data analysis of mobile users' characteristics, a scientific and dynamic estimation models for user credit were built. It can be applied to different solutions of suspended service for different mobile users based on the diverse credit category. It is effective to improve user experience, strengthen user loyalty, exploit potential spending power and ultimately increase the operating income.关键词：credit control;differentiation service;credit evaluation;characteristic analysis374|1774|0更新时间：2024-06-05
- 摘要：In order to seize market opportunities, rapid service fulfillment and high quality network service become the operators' urgently needs to solve problems. In order to achieve the customer service end-to-end rapid fulfillment, a network data configuration activation method based on SOA was proposed, and the network resource data configuration & activation system was constructed, the one-click end-to-end service fulfillment was realized. By this method, not only greatly improves the efficiency of service fulfillment, also avoids the artificial network data configuration errors in the process of service fulfillment.关键词：service-oriented architecture;service fulfillment;configuration and activation292|617|0更新时间：2024-06-05
- 摘要：Currently, there are various MTU processing mechanisms in dual stack environment in telecom IPMAN, but they have respective shortages and appropriate usage scenarios. Based on the analyses of above problems, the relatively feasible solution was provided, and the expected ideal target was discussed.关键词：dual stack;IPv6;IPMAN;segment;MTU;MRU;MSS380|1192|0更新时间：2024-06-05
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