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With increasing economic globalization and workforcemobilization, there is a strong need for research anddevelopment of advanced infrastructures and tools to bringimmersive experience into telecommunication so people acrossgeographically distributed sites can interact collaboratively ina natural way. This requires deep understanding of multipledisciplines. In particular, computer vision, graphics...
Pervasive healthcare applications utilizing body sensor networks generate a vast amount of data that need to be managed and stored for processing and future usage. Cloud computing among with the Internet of Things (IoT) concept is a new trend for efficient managing and processing of sensor data online. This paper presents a platform based on Cloud Computing for management of mobile and wearable healthcare...
Machine-to-machine (M2M) solutions are rolling out worldwide and across all industries - possibly being a key enabler of applications and services covering a broad range of vertical markets (e.g., health-care, utilities, transport, education-research and development, logistics etc.). M2M - as a part of the Internet of Things (IoT) - is, at the present, one of the main drivers behind the growth in...
Rapid expansion of wireless technologies has provided a platform to support intelligent systems in the domain of mobile marketing. Utilizing Location Based Services (LBS) and Global Navigational Satellite Systems (GNSS) infrastructure provides the transport of real-time, scheduled, location-based advertising to individuals and business. In this paper a distributed synchronous platform is proposed...
Archeological remnants in urban areas tend to be included in the urban landscape or even remain hidden in subterranean locations which are not visible and, for these reasons, they are accessed with difficulty by visitors. In our previous experience, we developed a mobile application, which guided visitors in real time through various archaeological sites using texts, images, and videos. The results...
When a major disaster occurs, it is highly possible that mobile communications won't work at all in disaster areas. Although some disaster tolerant applications are available in mobile phones, disaster evacuation guidance still has a problem in gathering and utilizing real-time information regarding the disaster areas under a situation where there is no mobile communication services. Especially, the...
As the maximum of viewpoint in each optical-plate unit attached with the mobile phone is fixed, when the bandwidth of wireless network is insufficient, the data of videos with the maximum viewpoints will not be transferred perfectly. The multi-view adaptive display method on optical-plate stereo mobile phone can increase or decrease the multi-view stereo videos according to the network bandwidth,...
The paper designs the system of real-time streaming media transmission based on multiple 3G-card in the mobile environment especially for news workers to report news events quickly and duly. The paper introduces the system framework including 3 big modules: capturing and transportation subsystem, multiple 3G cards controlling subsystem and media receiving subsystem. Among them transmission and 3G...
In this paper we introduce the Starting-Energy Fair Queuing (SEFQ), a novel class of energy-aware scheduling algorithms aim to guarantee a target lifetime to mobile devices while providing proportional energy consumption and time-constraint meeting to tasks. With the extension of fair queuing to the energy domain, energy consumption of CPU is managed in a way that each task is guaranteed a share of...
Wireless Metropolitan Area Network (WMAN) grows quickly due to a requirement of life. Among WMANs, IEEE 802.16 is the most popular standard. IEEE 802.16 supports mobility and Quality of Service (QoS). IEEE 802.16 regulates a handover scheme between a Mobile Station (MS) and a Base Station (BS). However, IEEE 802.16 does not have a priority rule in its handover scheme. Accordingly, a low-priority MS...
A distributed fuzzy system is a real-time fuzzy system in which the input, output and computation may be located on different networked computing nodes. The ability for a distributed software application, such as a distributed fuzzy system, to adapt to changes in the computing network at runtime can provide real-time performance improvement and fault-tolerance.
Minimizing energy consumption is becoming more and more crucial in today's mobile terminals communications. Reducing its use pass necessarily by exploiting low power design techniques and by adopting novel energy-aware applications and protocols. The focus in this paper mainly concerns the Voice over IP over Wireless Local Area Network (VoWLAN) application, which is beyond doubt the most popular application...
This work analyzes the impact of medium access control (MAC) layer on the performance of real-time cooperative positioning in ad-hoc mobile wireless networks. The probability mass function (pmf) of the latency introduced by the MAC layer is here derived to assess the influence of MAC parameters on the latency and then operate on those to improve the positioning performance while reducing the number...
Context situation, which means a snapshot of the status of the real world, is formed by integrating a large amount of contexts collected from various resources. How to get the context situation and use the situation to provide better services is a challenging issue. In this paper, we focused on this challenge on the basis of the mobile cloud computing architecture. An abstract model is proposed in...
The real-time applications deployed in MANETs are affected by the mobile node's power constraints and the real-time database service provider's system stability. In this paper, we aim to handle the time-constrained requests within their deadline despite of the mobile nodes limited energy. We propose a cross layer service selection protocol which ensures both timelines and energy efficiency. The proposed...
In this paper, we study the performance of some of the key scheduling algorithms such as Proportional Fair Scheduler, Modified Longest Weighted Delay First and Exponential Rule. We also propose a new algorithm called EXPQW, a variant of the Exponential rule which assigns weights to the subscriber stations based on their queue length and waiting time thereby ensuring fairness and quality of service...
In this paper we propose a cloud-based approach to improve the 3D reconstruction capability of handheld devices with real-time depth sensors. We attempt to characterize the quality of 3D information captured by real time depth sensing devices, and in particular examine how sensors from Prime Sense and Canesta measure distances, and derive simple analytical models on performance limitations for each...
Handover is a critical issue for wireless networks of various protocols including IEEE 802.16e. In this paper we propose an efficient handover scheme which reduces the number of packets required to be transmitted for handover and increases the channel availability. It is based on a concept of group-based channel scan and scheduled handover with the mobile stations (MSs). Computer simulation reveals...
The IEEE 802.16 standard is defined to meet the high-speed and wide-range data transmission in an efficient way. This paper studies the scheduling problem on IEEE 802.16e mesh networks to minimize the energy consumption of mobile stations so as to maximize the network lifetime. We consider the real-time connections and focus on the resource scheduling which includes time slots allocation, QoS guarantee...
We present an efficient natural feature tracking pipeline solely implemented in JavaScript. It is embedded in a web technology-based Augmented Reality system running plugin-free in web browsers. The evaluation shows that real-time framerates on desktop computers and while on smartphones interactive framerates are achieved.
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