Wide Range Of Multimedia Services Research Articles

An analysis of environmental big data through the establishment of emotional classification system model based on machine learning: focus on multimedia contents for portal applications

With the advent of the Internet, there have been many changes. As existing means of off-line communication have transferred to the Internet, a wide range of multimedia services are emerging. And unlike in the past, these work as tremendous sources from which people’s opinions and attitudes can be obtained. Particularly, diverse opinions and reviews posted on the web in real time help corporations or the State establish the directions of policies. In this context, this study developed machine learning-based environment issue sentiment classifier in order to find out, from comments posted below news, how people recognize issues about climate change in terms of environment. Based on training data constructed by this study, a sentiment classification algorithm was constructed by applying SVM (support vector machine) and Naive Bayes, which are machine learning techniques, and a sentiment classifier was constructed by applying CNN (convolutional neural networks) and Bi-LSTM (bidirectional long-short term memory) techniques among deep learning techniques recently researched vigorously; and then their performance was compared.

Interactive Patients’ Digital Interface: A Shari’ah Compliant Model: Patient Care System PACSYSTM

A fully integrated bedside solution helps to engage and entertain patients, making their stay in hospital more comfortable and supporting smoother day-to-day hospital running, enhancing efficiency, enabling faster recovery and supporting optimal clinical workflow for healthcare providers. PACSYS™ designed by Medic IG Infotech Sdn Bhd, a subsidiary of Medic IG Holdings Sdn Bhd, is an interactive bedside solution that delivers a wide range of TV channels, an extensive on-demand video library, internet connectivity and a reliable Shari’ah Complia nt solution. It is the most comprehensive and interactive hospital media system available on the market today. Our partnership with Telekom Malaysia makes our hospital interactive Shari’ah Compliant solution second to none. Designed for the healthcare environment, PACSYS™ not only meets patients’ entertainment and communication needs, but also provides extensive opportunities for hospitals to engage further through our range of powerful Patient Engageme nt and Clinical Solutions. Providing patients with access to entertainment can be extremely useful in keeping patients distracted, calm, and rested, and in the best possible condition to respond to treatment. Due to the Shari’ah Compliant Hospital requirement, the access to entertainment is being filtered through Salam Web Technologies™ which provides the filtering process in denying access to view non Halal websites. PACSYS™ was designed with the hospital environment in mind, providing patients with a wide range of multi-media services to keep them entertained and in touch with the outside world and delivers a selection of popular TV channels. PACSYS™ gives clinicians secure, direct access to the hospital information system at the point of care, POC. Clinicians use POC to view medical records, order and verify medication, and share patient scans and test results—right at the bedside. Patients have access to educational materials, satisfaction surveys and other helpful tools through PACSYS™. Medical staff can access videos, audio files, and documents to educate patients on Shari’ah related matters example prayer (solat), fasting and other Islamic knowledge and practices. Hospitals can prompt participation in patient surveys to collect real-time, actionable information on satisfaction scores.International Journal of Human and Health Sciences Supplementary Issue: 2019 Page: 18

Quality of experience and quality of service‐aware handover for video transmission in heterogeneous networks

SummaryHeterogeneous networks offer a wide range of multimedia services, such as entertainment, advertising, and video conferences. In this multimedia scenario, users can access video content via heterogeneous wireless networks, such as LTE macro and small cells. Users also expect to receive real‐time videos with Quality of Experience (QoE) support, which is a challenging task due to the great diversity of radio base stations in such heterogeneous environments. In this article, we introduce a Quality of Service (QoS‐)/QoE‐ and Radio‐aware (SER) handover management algorithm for heterogeneous networks to provide video dissemination with QoS/QoE support. SER algorithm considers the analytic hierarchy process (AHP) to adjust the degree of importance of each criterion in order to select the appropriate radio base station that the mobile node must connect, allowing efficient handover decision making for video transmission with high user experience. Simulation results show that the SER algorithm delivered videos with significant improvement on QoE than existing handover algorithms.

Scalable Virtualization and Offloading-Based Software-Defined Architecture for Heterogeneous Statistical QoS Provisioning Over 5G Multimedia Mobile Wireless Networks

As a crucial step moving towards the next generation of super-fast wireless networks, recently the fifth-generation (5G) mobile wireless networks have received a plethora of research attention and efforts from both the academia and industry. The 5G mobile wireless networks are expected to provision distinct delay-bounded quality of service (QoS) guarantees for a wide range of multimedia services, applications, and users with extremely diverse requirements. However, how to efficiently support multimedia services over 5G wireless networks has imposed many new challenging issues not encountered before in the fourth-generation wireless networks. To overcome these new challenges, we propose a novel network-function virtualization and mobile-traffic offloading based software-defined network (SDN) architecture for heterogeneous statistical QoS provisioning over 5G multimedia mobile wireless networks. Specifically, we develop the novel SDN architecture to scalably virtualize wireless resources and physical infrastructures, based on user’s locations and requests, into three types of virtual wireless networks: virtual networks without offloading, virtual networks with WiFi offloading, and virtual networks with device-to-device offloading. We derive the optimal transmit power allocation schemes to maximize the aggregate effective capacity, overall spectrum efficiency, and other related performances for these three types of virtual wireless networks. We also derive the scalability improvements of our proposed three integrated virtual networks. Finally, we validate and evaluate our developed schemes through numerical analyses, showing significant performance improvements as compared with other existing schemes.

Hierarchical Caching for Statistical QoS Guaranteed Multimedia Transmissions over 5G Edge Computing Mobile Wireless Networks

The 5G mobile wireless networks are expected to provision distinct delay-bounded QoS guarantees for a wide range of multimedia services, applications, and users with extremely diverse requirements. On the other hand, how to efficiently support multimedia services over 5G wireless networks has imposed many new challenging issues not encountered before in 4G wireless networks. Bringing data contents closer to mobile users, the caching-based content- centric edge computing network is a promising candidate network architecture and technique to efficiently guarantee QoS for time-sensitive multimedia transmissions over 5G mobile wireless networks. However, how to collaboratively integrate in-network caching and edge computing for multimedia transmissions over 5G wireless networks has been neither well understood nor thoroughly studied. To remedy these difficulties, in this article we propose hierarchical-caching-based content-centric network architectures and their three different implementation/ control mechanisms over 5G edge computing mobile multimedia wireless networks, where popular multimedia data contents can be cached at different network tiers (e.g., routers, base stations, and mobile devices) to guarantee the statistical delay-bounded QoS for multimedia transmissions while minimizing redundant transmissions. We propose three hierarchical edge caching mechanisms: random hierarchical caching, which maximizes the average effective capacity based on the users' request frequency (i.e., data popularity); proactive hierarchical caching, which maximizes the cache hitting rate by predicting the popularity of data contents and caching the data contents with high popularity nearby mobile users; and game-theory-based hierarchical caching, where three network caching tiers are formulated as three game players in a cooperative game to maximize their aggregate effective capacity under the constraints of caching expenses at each tier. We develop three concrete algorithms to implement and control the three hierarchical caching mechanisms, respectively, for statistical delay-bounded QoS guaranteed multimedia transmissions. Using simulations and numerical analyses, we show that our proposed three hierarchical caching mechanisms significantly outperform other existing schemes in supporting the statistical delay-bounded QoS provisioning over 5G edge computing mobile wireless networks.

Service Migration from Cloud to Multi-tier Fog Nodes for Multimedia Dissemination with QoE Support.

A wide range of multimedia services is expected to be offered for mobile users via various wireless access networks. Even the integration of Cloud Computing in such networks does not support an adequate Quality of Experience (QoE) in areas with high demands for multimedia contents. Fog computing has been conceptualized to facilitate the deployment of new services that cloud computing cannot provide, particularly those demanding QoE guarantees. These services are provided using fog nodes located at the network edge, which is capable of virtualizing their functions/applications. Service migration from the cloud to fog nodes can be actuated by request patterns and the timing issues. To the best of our knowledge, existing works on fog computing focus on architecture and fog node deployment issues. In this article, we describe the operational impacts and benefits associated with service migration from the cloud to multi-tier fog computing for video distribution with QoE support. Besides that, we perform the evaluation of such service migration of video services. Finally, we present potential research challenges and trends.

이어폰 기능 검사장치 개발을 통한 공정개선

최근 스마트폰을 중심으로 다양한 멀티미디어 서비스를 활용하기 위해 개인용 이어폰을 사용하고 있다. 국내에서 판매되는 스마트 폰은 개인용 이어폰을 필수로 제공하고 있고, 스마트폰과 테블릿 PC로 음악을 듣는 문화가 확산되면서 어디서나 간편하게 음악을 감상하는데 필요한 이어폰 수요가 갈수록 증가하고 있다. 본 논문에서는 많은 량이 이어폰을 생산하는데 있어, 불량제품을 검사하기 위한 복잡한 검사공정을 단순화 하고, 검사 시 소요되는 시간과 비용을 절감하기 위해 이어폰 기능검사 장치를 개발하여 검사공정을 개선하였다. 이어폰 검사장치 개발을 통한 공정개선은 이어폰 불량 검사를 위한 검사 원의 수를 줄일 수 있고, 이어폰 검사 시간을 단축 할 수 있으며 일일 검사 량을 증가시킬 수 있다. Recently with smartphones and tablets, personal earphones have been using to utilize a wide range of multimedia services. Especially smartphones sold domestically provide earphones as necessaries. As a life style listening to music through smartphones and tablets has been spread widely, there has been in increasing demand of earphones necessary for enjoying music anytime and anywhere. This paper has simplified the complex performance test processes to inspect defective products when producing a large amount of earphonesand has improved the existing performance test processes to reduce the costs and time for the performance test of earphones. In this paper, the improved performance test processes through developing the performance test equipment of earphones can reduce the performance test inspectors, cut down the performance test time, and increase the daily amount of the performance test.

Simulation Model for DVB-SH Systems Based on OFDM for Analyzing Quasi-error-free Communication over Different Channel Models

Mobile users today expect wide range of multimedia services to be available in different mobility scenarios, and among the others is mobile TV service. The Digital Video Broadcasting - Satellite services to Handheld (DVB-SH) is designed to provide mobile TV services, supporting a wide range of mobile multimedia services, like audio and data broadcasting as well as file downloading services. In this paper we present our simulation model for the performance evaluation of the DVB-SH system following the ETSI standard EN 302 583. Simulation model includes complete DVB-SH system, supporting all standardized system modes and parameters. From transmitter to receiver, the information may be sent over different channel model, thus simulation real case scenarios. To the best of authors' knowledge, this is the first complete model of DVB-SH system that includes all standardized system parameters and may be used for examining real DVB-SH communication as well as for educational purposes.

Swarm Intelligence Based Self-organizing QoS Framework for Ever-changing Future Networks

We consider a new QoS framework for a wide range of multimedia services in ever-changing networks where traffic is dynamic and network topologies frequently change. In this paper, for such networks, we propose a new self-organizing QoS framework called AntQoS, which is inspired by recent works on ant colony optimization. Compared with previous QoS frameworks, AntQoS provides two quite promising capabilities: 1) the self-organized network QoS (not pre-defined QoS), which autonomously reconfigures itself by promptly adapting to changing network environments such as sudden arrivals of highly bursty traffic, and 2) the self-organized network controls, which autonomously resolve the network congestion and intrinsically resist the multiple network failures. These two promising capabilities enable the proposed AntQoS framework to efficiently and reliably support a wide range of multimedia services with various quality demands. Especially, these capabilities are provided by making use of swarm intelligence of artificial ants without any supervised control. For this purpose, AntQoS employs one single artificial ant colony on an ever-changing network; a number of artificial ants in the employed colony explore network and measure or gather the status information about the networks. Based on the gathered information, AntQoS organizes and maintains a small number of virtual sub colonies named QoS colonies. The QoS colony is an intelligent virtual colony to be capable of searching the path which guarantees the given quality demands of flows. In addition, it is autonomously generated, maintained, and deleted for promptly adapting to the ever-changing network status. Simulation results demonstrate that AntQoS successfully supports various multimedia services with diverse delay requirements while increasing the network throughput by approximately 20% compared to the well-known IntServ frameworks. Simulation results also show that AntQoS autonomously redistributes the congested traffic and resists the unexpected network failures.

Application of multimedia services in the broadband environment to improve logistic needs of the army

The paper analyzes the flow of some multimedia services, and points to the possibility of applying some of the services in the broadband environment to improve the logistic needs of the army. The need to convey information in different forms (from text, data, graphics, still pictures to video motion pictures) is increasing continually. Requests for information transfer in high resolution require increasing the flow to several dozens of Mb/s. Broadband represents the platform for a wide range of multimedia services. Each multimedia service requires a certain flow which can be partially decreased with advanced coding techniques.

An Efficient Admission Control with Adaptive Band Width Allocation Scheme for WCDMA Network

An adaptive B.W allocation scheme is necessary for the QoS provision in WCDMA environment. Traffic in the upcoming wireless network is expected to be extremely non stationary and next generation wireless networks including 3rd generation are expected to provide a wide range of multimedia services with different QoS constraints on mobile communication. Most important issues that the guarantee system efficiency and QoS required for different services. In a many scare resources as the radio spectrum. In this paper we propose WCDMA architecture for multilevel QoS services like voice, video and data for multiple uses and the adaptive B.W allocation scheme for multiuse’s adjusted dynamically according to required network. By simulation result our proposed WCDMA architecture along with B.W allocation scheme will reduce the call blocking probability, through put, transmission time, degraded B.W, degradation ratio. Keywords: wireless network, admission control, through put, QoS, multiclass, transmission time.

QoS on LEO satellites

This paper discusses the role played by wireless network infrastructure in mobile commerce applications. The user's perception of service quality depends on the available resources and capabilities of the network. The new generation of low earth orbit (LEO) mobile satellite networks, deployed at altitudes ranging from 500 km to 2000 km, are well suited to handle multimedia traffic and to offer end-users equipped with hand-held devices at low cost-per minute access to network services. A wide range of multimedia services and applications are expected to provide users with QoS based asynchronous transfer mode (ATM) technology. LEO satellite networks provide significant wide area coverage, unique broadcast capability, ability to meet different QoS requirements, the ability to communicate with hand-held devices and low cost access. The main resources in the LEO networks are satellite radio bandwidth and the buffer capacity of the onboard ATM switch. The most important ATM resource management function is connection and call admission control. The real objective of this article is to introduce the general framework of resource reservation in multimedia LEO satellite networks which offers a unified approach to handle all the important aspects of resource reservation and radio-resource management functions required by E-commerce and mobile commerce applications.

QoS-enabled broadband mobile access to wireline networks

Third-generation wireless systems, known as IMT-2000 within the ITU, offer opportunities to support a wide range of multimedia services. Packet data services will play a major role in these new multimedia services. A key component of packetized data services is to ensure end-to-end QoS requirements through efficient management of the network's resources. We present an overview of radio resource scheduling schemes including architecture, radio interface protocol, and interactions in a wideband CDMA environment. We then present an example of the QoS architecture followed by a discussion on end-to-end provisioning and interworking from wireless to fixed networks.

Flexible trading in distributed multimedia systems

The concept of trading is emerging as an important structuring technique in the design of distributed systems. Trading for services has been explored in depth as part of the Advanced Network Systems Architecture project (ANSA) and is now being considered by the Open Distributed Processing (ODP) standards community. Although trading has proved successful in experimental work to date, little consideration has been given to extensions that might be required to accomodate more complicated multimedia services. This paper looks at trading and its potential in designing distributed multimedia systems. It is envisaged that the trading environment must be enhanced to provide support for more complicated multimedia services such as voice and video. The approach taken in this paper is to construct multimedia traders which coexist with standard ANSA traders. The functionality of these traders must be flexible in order to support the wide range of multimedia services. Mechanisms are presented that will provide the necessary flexibility for a multimedia environment. The paper concludes that these mechanisms provide a principled extension of the ANSA/ODP framework for the design of distributed systems.