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Future mobility management systems need to in-corporate innovative methods to improve mobile multimedia networking, such as quality-oriented decision-making functions for selecting the best Point of Attachment (PoA) for in-transit Moving Objects (MOs). Among the various correlating algorithms raised in the literature, solutions based on the Multiple Attribute Decision Making (MADM) are beneficial...
The existence of high multipath resolution allows Rake collectors to maximize the signal-to-noise ratio efficiently. However, previous studies show that the conventional Rake receivers do not consider the multipath effect caused by long channel response such as in ultra-wideband wireless system. In this paper, we propose a new statistical selection (SS)-Rake receiver in long multipath channel. The...
Engineering students conceptualize problems in diverse ways depending how the problems are presented. In this study, we investigate how different representations of problems, such as with images and sketches versus traditional word description of problems, allow students to recall information. Some students experience difficulties visualizing a concept when given a word problem while others do not...
MPEG Media Transport (MMT) is a next generation media transport standard developed as a part of ISO/IEC 23008. MMT standard specifies technologies for the delivery of coded media data for multimedia services over concatenated heterogeneous packet-based networks including bidirectional IP networks and unidirectional digital broadcasting networks. MMT also supports an Application Layer Forward Error...
One of the goals of next generation home entertainment is to provide realistic media contents to the users. Realistic media contents are media with multiple sensorial effects (mulsemedia) aimed at increasing user's experience through the five sense representation (i.e., taste, sight, touch, smell, and hearing). In this research area, a key issue is the interconnection between the various output devices...
In 1990, Schnorr proposed a signature scheme that is suitable for smart card interactions. The original Schnorr signature was based on the Discrete Logarithm assumption with a loose security reduction. In 2003, Katz-Wang then proposed a variant of Schnorr's signature scheme based on the Decisional Diffie-Hellman assumption with a tight security reduction. In this paper, we further improve Katz-Wang's...
The edge computing techniques have been developed to support the exponentially increasing service demands in the fifth generation (5G) networks by bringing the data contents and their corresponding computations/communications near to mobile users. As a promising and efficient solution to implement edge computing techniques, mobile data offloading complements the traditional cellular transmission through...
In our research we address the common and important problem of measuring users' experience in multimedia cultural heritage applications. Our objective is to develop a simple and efficient instrument capable to highlight both main qualities and major difficulties in using such applications for different types of users. We address specific objectives of usability for multimedia cultural heritage applications:...
The newly standardized H.264/SVC enables multimedia suppliers to provide video bitstream with temporal, spatial and quality scalabilities to meet various needs of end users. Its bitstream scalability characteristic is also especially suitable for multimedia applications under merged heterogeneous networks with different network protocols, capacities and throughputs. The issue of content protection...
Emerging big data frameworks requires computational resources and memory subsystems that can naturally scale to manage massive amounts of diverse data. Given the large size and heterogeneity of the data, it is currently unclear whether big data frameworks such as Hadoop, Spark, and MPI will require high performance and large capacity memory to cope with this change and exactly what role main memory...
Wireless multimedia sensor networks (WMSNs) require data to be communicated timely and reliably. However, radio transmission errors incurred by wireless channel make it difficult to achieve these qualities simultaneously. To provide good quality of service (QoS) of WMSNs, parameters associated with the WMSNs need to be studied completely and best tradeoff needs to be made. To characterize the delay-reliability...
The authoring tools are software applications, for the construction of educational resources that incorporate the possibility of including multimedia elements, that allow to carry and use the resources created in various environments or devices types. Edutools is an authoring tool conceived for the creation of Learning Objects (OA) in HTML format (Hyper Text Markup Language), moreover the tool provides...
WiGig enables wireless multi-gigabit communication over 60GHz band. However, its usage scenarios may be constrained by two major limitations: line-of-sight propagation and very short transmission range. We seek to boost the WiGig's usability by using WiFi to complement its limitations in tri-band (2.4/5/60GHz) wireless systems. Our goal is to let a tri-band client have multimedia services at the WiGig's...
Increasing demand in multimedia streaming has led to the advancement of Internet speed, reliability and other techniques. The 3GPP LTE network uses eMBMS protocol for broadcasting and multicasting the multimedia streaming, still the base station overloading has become an alarming issue due to the growing need of the mobile users. Since bandwidth is scares and limited, many emerging fields such as...
Efficient content distribution is a critical challenge in vehicular networks (VANETs). This is due to the characteristics of vehicular networks, such as high mobility, dynamic topologies, short-lived links and intermittent connectivity between vehicles. Recently, information-centric networking (ICN) has been proposed to VANET scenarios for improving content delivery of infotainmentapplications. However,...
In the modern world, communication between people is being more important than ever, people are seeking for a more vivid, real-time way of communication. WebRTC (Web Real-Time Communication) is an upcoming technology that enables real-time communications capabilities in audio, video and data transmission via web browsers through Javascript APIs (Application Programming Interfaces). In this paper,...
Recent years have seen both mobile devices become more prominent and rapid growth in video traffic across mobile networks. This trend is expected to continue with the main constraint on mobile devices being their battery life. With the growth in performance potential, users want more out of their devices which leads to issues including battery powered mobile devices not being capable of surviving...
Adult video content is considered to be responsible for a major portion of the Internet traffic. We present a preliminary characterization study of one of the largest and popular adult streaming service, xHamster. While there have been extensive analysis of mainstream user generated content sharing services such as YouTube, adult streaming services have been an underappreciated field of study for...
ConCIENCIA Estadística is a digital educational material proposed as support for the development of the homonymous workshop, organized in the framework of the Project for Improvement of Training in Exact and Natural Sciences in the Secondary School (Facultad de Ciencias Exactas y Naturales, Universidad Nacional de La Pampa). This material is described in this paper, offering technical details of its...
At present, Information and Communication Technologies (ICT) constitute another component of the physiognomy of the different scenarios where children grow, develop and form. The kindergarten and the first years of the primary level, are one of these scenarios where is interesting their connection with these technologies, as with other that are part of your life. Children are born in the era of digital...
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