Cable TV Networks Research Articles

Detecting and Locating Signal Leakages from Cable TV Networks – A Case Study

Detecting and Locating Signal Leakages from Cable TV Networks – A Case Study

Synthesis of multilevel knowledge graphs: Methods and technologies for dynamic networks

Knowledge Graphs is one of the most popular techniques for knowledge-based modelling in various subdomains of modern AI technologies ranging from natural language processing to e-commerce recommendations and cyberphysical systems. Even complex technical systems like telecommunication networks could be modelled by means of Knowledge Graphs. However, there are serious challenges when we deal with such systems having a huge number of interconnected elements (e.g. technical objects and their groups) that change over time. Thus, up-to-date there is no adequate solution for not only telecommunication networks but for any complex dynamic systems where inductive and deductive synthesis of large Knowledge Graph based models that are easily reconfigurable and scalable is required.We state and solve the problem of building such models for one of the most common types of objects where models can be represented as hierarchical re-configurable structures. This representation enables recent advances in multilevel inductive–deductive synthesis for model building.From a methodological viewpoint, we propose a novel complex approach to multilevel synthesis for objects with dynamic hierarchical structure based on modified methods for inductive and deductive synthesis of Knowledge Graphs. From a practical perspective we present a real case-study on an interactive service for digital cable TV networks – which is especially interesting for data engineers and scientists – where various problems ranging from network health monitoring to channel advertising can be solved with the same hierarchical model. We release an openly available domain benchmark, which features two realistic datasets (namely, for SPARQL querying performance analysis, and for our case study on dynamic network monitoring). Last but not least, our experiments with recent state-of-the-art approaches to knowledge graph querying Abdelaziz et al. (2017) show that the developed models of multilevel synthesis reduce the time complexity up to 73% on practice compared to the baselines, and are lossless and able to beat their competitors based on parallel knowledge graph processing from 4% to 91% in terms of computational time (depending on the query type). Further parallelisation of our multilevel models is even more efficient (the reduction of query processing time is about 40%–45%) and opens promising prospects for the creation and exploitation of dynamic Knowledge Graphs in practice.

Effect of Advertising Media on Sales Performance of Cable TV Network Firms in Mwanza City, Tanzania

The study aimed to investigate the impacts of advertising media on sales performance of firms in Cable TV network sector in Mwanza city, Tanzania. Specifically, this study concentrated in determining how digital marketing affects sales performance, determining effect of TV/Radio on sales performance of firms, assessing effect of outdoor (out of home) on sales performance.. This study employed quantitative methodology. The targeted population of the study was about 414 network managers from the six Cable TV network service providers and A sample of 83 network managers, selected from a population of 414 Cable TV network firms and were selected using simple random sampling technique. Questionnaire and documentary review are used to collect data. The study employed descriptive statistics and inferential statistics. The results revealed that all the advertising media namelydigital marketing, TV/Radio and outdoor had a significantly positive effect on sales performance of Cable Network firms. The study further found that mobile marketing had the highest effect of firms’ ales performance followed by outdoor adverting, then social media marketing and lastly TV/Radio. The study lastly recommends that management should create readiness of the company in terms of ensuring products and organization area, and establish a great team. The study also recommended that Cable TV firms should use more of modern advertising especially mobile marketing and social media marketing as they can be accessed by customer 24/7/365 and will reach more people. The marketing/Advertising department should develop marketing plan for advertising to assist measuring effectiveness of each advertising media and hence this can help in developing effective marketing activities.

RoIP Compression Method in Burst Noise Upstream Environment for CATV Network

A hybrid fiber coaxial (HFC) network uses both optical fibers and coaxial cables for cable TV networks. Coaxial cables are mainly used for access networks. Recently, fiber to the home (FTTH) is being widely deployed. For cable TV companies to utilize readily deployed FTTH, legacy coax network-based customer premise equipment (CPE) such as cable modems and set top boxes may have to be replaced with fiber network based CPE. In order to reduce the expenditure incurred in this process, radio over Internet Protocol (RoIP) technology has been proposed. In the RoIP system, RF signal for coax generated by legacy CPE toward the headend is first sampled, and digitized, and then encapsulated in IP packets, which are then sent to the headend using FTTH access technologies such as passive optical network (PON). In the process of digitizing RF signal, a huge amount of data much more than the base band data is generated. So, a data compression method is required to lower the upstream bit rate maintaining the signal quality. Most compression methods are significantly degraded due to the interference caused by burst noise in the upstream link. Therefore, this paper proposes a new compression method which combines linear predictive coding (LPC), block scaling and non-linear quantization for CATV upstream links. The proposed method is demonstrated to greatly reduce the impact of burst noise while maintaining the compression performance.

Analog television in Russia after 2019: Some consequences of the transition to digital tv broadcasting

13 years ago, on December 22, 2006, Russian Prime Minister Mikhail Fradkov signed the first government decree regulating the introduction of digital TV in Russia (TASS October 14, 2019). The article summarizes the authors’ long-term research on the country’s transition to digital broadcasting. Historical parallels are drawn with similar events from the history of television development. It is found out how this will affect different segments of the population. Possible ways of realization of digital signal reception for viewers are presented. Two possible ways of distributing terrestrial television content are briefly described. It is concluded that cable operators are monopolists of television broadcasting in apartment buildings. The results of the study of cable operators in Russia are presented. In contrast to the majority of “winning” headlines in the media the hypothesis that cable TV networks will continue to broadcast in the same format on analog TV sets was confirmed. The authors conclude that the high urbanization of the Russian population has saved most of the country’s viewers from the severe shocks associated with the transition to digital television. A comparison of the television audience of the urban population and suburban residents is given. It points to the problems of pensioners and the poor caused by the digitization of TV. The problems of possible destruction of the socio-cultural space of Russia due to the reduction or liquidation of local TV companies were highlighted. It is emphasized that it is the rural population that most contributes to the preservation of cultural traditions and moral foundations. It is emphasized that regional and municipal television is the main way of information influence on the local electorate. The analysis of pages of all subjects of the Federation of the official website of the STRC for broadcasting in digital format of local television is carried out. The dynamics of the emergence of new regional stations on the air was indirectly measured. In conclusion, measures are proposed to unite the population of the country through the programs of regional companies

Analog television in Russia after 2019: Some consequences of the transition to digital tv broadcasting

13 years ago, on December 22, 2006, Russian Prime Minister Mikhail Fradkov signed the first government decree regulating the introduction of digital TV in Russia (TASS October 14, 2019). The article summarizes the authors’ long-term research on the country’s transition to digital broadcasting. Historical parallels are drawn with similar events from the history of television development. It is found out how this will affect different segments of the population. Possible ways of realization of digital signal reception for viewers are presented. Two possible ways of distributing terrestrial television content are briefly described. It is concluded that cable operators are monopolists of television broadcasting in apartment buildings. The results of the study of cable operators in Russia are presented. In contrast to the majority of “winning” headlines in the media the hypothesis that cable TV networks will continue to broadcast in the same format on analog TV sets was confirmed. The authors conclude that the high urbanization of the Russian population has saved most of the country’s viewers from the severe shocks associated with the transition to digital television. A comparison of the television audience of the urban population and suburban residents is given. It points to the problems of pensioners and the poor caused by the digitization of TV. The problems of possible destruction of the socio-cultural space of Russia due to the reduction or liquidation of local TV companies were highlighted. It is emphasized that it is the rural population that most contributes to the preservation of cultural traditions and moral foundations. It is emphasized that regional and municipal television is the main way of information influence on the local electorate. The analysis of pages of all subjects of the Federation of the official website of the STRC for broadcasting in digital format of local television is carried out. The dynamics of the emergence of new regional stations on the air was indirectly measured. In conclusion, measures are proposed to unite the population of the country through the programs of regional companies

Proposal of High Efficiency Video Distribution Scheme Over Cable TV Networks

Proposal of High Efficiency Video Distribution Scheme Over Cable TV Networks

A simple and portable add on converter module for communication and measurements

This paper presents the development of a new versatile portable add-on converter module which can be used for analysing mobile communication and cable TV networks. Present testing techniques required separate test equipment for characterising electrical and optical networks. Here, we develop a new system work as an add-on module for electrical frequency domain reflectometer which can perform measurements in electrical as well as optical cable networks. Using this technique, millions of electrical cable analyser currently in use all over the world can be converted into the optical analyser. The same system can also be configured as a bidirectional communication system for a wide variety of applications like fibre to the antenna/fibre to the home, cable TV applications. We also show that the developed system has wideband performance over a frequency range from 800 MHz to 2.5 GHz and a dynamic range of 45 dB.

A simple and portable add-on converter module for communication and measurements

This paper presents the development of a new versatile portable add-on converter module which can be used for analysing mobile communication and cable TV networks. Present testing techniques required separate test equipment for characterising electrical and optical networks. Here, we develop a new system work as an add-on module for electrical frequency domain reflectometer which can perform measurements in electrical as well as optical cable networks. Using this technique, millions of electrical cable analyser currently in use all over the world can be converted into the optical analyser. The same system can also be configured as a bidirectional communication system for a wide variety of applications like fibre to the antenna/fibre to the home, cable TV applications. We also show that the developed system has wideband performance over a frequency range from 800 MHz to 2.5 GHz and a dynamic range of 45 dB.

Self-coverage for public interest or self-promotion: How media cross-ownership structures affect news content in South Korea

The growing phenomenon of cross-ownership by media conglomerates and the influence of that phenomenon on news content continues to receive considerable attention internationally. Such cross-ownership of media has triggered discussions about whether media firms prioritize their own business interests through self-promotion. In the context of South Korea where the three main newspapers are permitted by the government to cross-own cable TV network subsidiaries, this study looks at whether and to what extent self-coverage is done with the intent of self-promotion. Specifically, this study examined 1362 news articles about issues related to self-coverage published in five of South Korea’s major newspapers – three with cable TV networks and, for purposes of comparison, two without. Content analysis showed that the three newspapers that cross-own cable TV networks were more likely than their competitors to cover more frequently as well as more positively news about their primary shareholders along with news about programs broadcast by their own subsidiary cable TV networks. These results may suggest that self-coverage by newspaper companies in South Korea tend to favor their own private interests at levels higher than news of public interest.

Above-the-line advertising media and consumers awareness of selected cable TV networks in Calabar Metropolis, Cross River State- Nigeria

The study deals with “above-the-line advertising media and consumers awareness cable TV networks in Calabar metropolis”. The specific objectives were to determine the effect of radio advertising on consumers’ awareness of cable TV networks in Calabar metropolis and to examine the effect of billboard advertising on consumers awareness of cable TV networks in Calabar metropolis. Two research hypotheses were formulated and tested for the study. The social penetration and cognitive balance theories were used in the study. Sample size of four hundred was drawn from the population of three hundred and seventy thousand nine hundred and seven consumers using Taro Yamane formula. The instrument was face validated while reliability of the instrument was determined by split-half method and tested by Pearson correlation with the use of SPSS version. Data treatment technique used was simple regression statistical tool with the aid of SPSS version 23. The study concluded that radio and billboard advertisings create positive consumers awareness of cable TV networks in Calabar metropolis. The study recommended that cable TV networks should introduce sponsored radio programmes on local radio stations in Calabar. This will help to increase listenership and as a medium of reminder, awareness, education and persuasion to present and intended consumers to patronize the products.

A designing method for band‐reject filter with high selectivity and tunable bandwidth

AbstractHigh selectivity band‐reject filters are usually demanded in applications such as removing QAM signals of digital cable TV network and removing interference signals in communication systems. In this letter, a filter design method which employ discontinuous meandered transmission line and isolated board is proposed. The experimental results show that the transient bandwidth (between −3 and −20 dB) of our filters is less than 1 MHz. Besides, the rejecting bandwidth of our filters can be tuned to fulfill the requirements of different applications.

Research on group enterprise multimedia information publishing system

A electric power group enterprises to actively explore the innovation of enterprise culture management, making full use of modern information and communication technologies, construction of trans-regional multimedia information publishing platform. Construction of a municipal pilot units in Group region, for example, through consolidation, Office LANs, corporate networks in electric power communication network, cable TV network, realized with pictures, video, PPT, FLASH animations, WORD documents, WEB pages, video conference streams, radio, television, and other media as the carrier’s digital communications.

Improving the quality of life of persons with disabilities by using digital technologies

In today?s postinformation society, digital technology has the technological means and innovative solutions which can personalize and customize services to meet the requirements of every user without any barriers. Service personalization is most apparent in the use of the internet, mobile phones, TV, and e-government. Consequently, due to its characteristics, adaptability and openness, digital technology can greatly facilitate and accelerate inclusive processes in society. Mobile devices and services, the internet together with digital cable and terrestrial TV network are just some of technological tools available to modern society for the inclusion of marginalized social groups, including the persons with disabilities. The introductory chapter considers the basis for the use of digital technology in developing an inclusive society, while the research shows the extent to which digital technology is used, as well as the real needs of persons with disabilities for the purpose of finding potential to improve the quality of their life. The conducted research is based on a quantitative testing of two hypotheses, namely, whether persons with disabilities use digital technology to the same extent as persons without disabilities, and whether there are any differences with respect to the improvements of the quality of life as a result of the use of digital technology. For the purpose of testing the hypotheses, based on the sample group of 185 respondents, with 95 of them being persons with disabilities and 90 being persons without disabilities, a comparison was done of average values through t-test, as well as the comparison of relative frequencies by applying x2 test for independent samples. The results have shown that persons with disabilities use digital technology less than persons without disabilities, which only exacerbates the digital exclusion of persons with disabilities. Nevertheless, both groups have the same expectations with respect to the possibility of improving their lives. Noticeable potential for improving the quality of life for persons with disabilities has been noted by raising the use of digital technology to a higher level, especially with the use of mobile phones and the internet. The analysis of the research results has provided data which are significant for estimating the capacity of digital technology and further application of the technology in developing an inclusive society. This paper also proved that an interdisciplinary approach to such a vulnerable subject as inclusion and the social status of persons with disabilities can have beneficial results, as it can be used as guidance in further development of available tools, applications and other digital gadgets.

Analysis and Implement of Broadcast Program Monitoring Data

With the rapid development of the radio and TV industry and the implementation of INT (the integration of telecommunications networks, cable TV networks and the Internet), the contents of programs and advertisements is showing massive, live and interactive trends. In order to meet the security of radio and television, the broadcast of information have to be controlled and administered. In order to master the latest information of public opinion trends through radio and television network, it is necessary research the specific industry applications of broadcast program monitoring. In this paper, the importance of broadcast monitoring in public opinion analysis is firstly analysed. The monitoring radio and television programs broadcast system architecture is proposed combining with the practice, focusing on the technical requirements and implementation process of program broadcast, advertisement broadcast and TV station broadcast monitoring. The more efficient information is generated through statistical analysis, which provides data analysis for radio and television public opinion analysis.

Aquarius and Beyond: Thinking through the Counterculture

Aquarius and Beyond: Thinking through the Counterculture

The Analysis of the Loss Rate of Information Packet of Double Queue Single Server in Bi-Directional Cable TV Network

The transformation of loss rate analysis for the Bi-directional cable TV network is becoming more and more important. In this paper, the authors employ the double queue single server system to the information of Bi-directional cable TV network in the analysis of information packet. The information of Bi-directional cable network packets are calculated and analyzed theoretically and the loss rate of the information packet is also simulated by computer in this paper. Simulation results show that the theoretical analysis and simulation are consistent. And the network of Bi-directional information packet using double queue single server modeling of cable television in the transformation of loss rate analysis provides reference to the theoretical analysis and computer simulation.

A High Performance Baseband Testing Instrument for Access Network System: A PXI-Based Approach

High performance network over coax (HINOC) is a recently proposed technology which plays a central role in the integration of telecommunications networks, cable TV networks and the Internet. But there still is a lack of comprehensive testing equipment designed for it yet, especially in baseband signal testing area. In this paper, we designed a high performance baseband signal transmitter and analyzer for HINOC system test. The system is implemented as hardware and software co-design architecture. Both of the baseband signal transmitter and analyzer have passed a series of rigorous tests, which demonstrates that the whole system meets the HINOC test specification and can provide great assistance for follow-up HINOC research.

The Loss Rate Analysis of Information Packet in Bi-Directional Cable TV Network

In this paper, the authors employ the M/M/1 system and single-queue and single-server system of gated service, the information packets of Bi-directional cable network are calculated and analyzed theoretically, and the loss rate of information packet is also simulated by computer compared to the theoretical analysis in the paper. Simulation results show that the theoretical analysis and simulation are consistent.And the information packet of Bi-directional cable TV network using single-queue and single-server system’s loss rate analysis of information packet in the transformation provides reference to the theoretical analysis and computer simulation.

Research of Digital TV Public Cultural Information Service System Based on DBS

In the existing digital TV platform based on direct broadcast satellite, using the idle repeater resources, digital TV intelligent operating system and the core technology of middleware can present multiple functions such as broadcast TV, cable TV network etc. in one terminal without increasing the cost of existing satellite receiving terminal, realizing a variety of digital service like satellite TV channels, local channels, movies pushing Well-being community, health care, culture sharing, government affairs openness, television, newspapers and magazines. At the same time it can be transmitted to the edge server of Internet, the front of cable TV network and other network environment to realize the integration of three kinds of networks, which creates a kind of public digital cultural information service system with less investment, multiple functions, wide coverage, fast transmission speed, resource sharing, safe and controllable.