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The paper presents a method of bridging the gap between GIF and HTML5 Video by providing both - allowing much faster content delivery and saved bandwidth. It's been over 25 years since the GIF format was introduced, and we've since then made significant progress in video compression. By converting GIF to video formats, you not only gain the possibility of user interaction, but you also reduce its...
With the maturity of 4G communication technologies and the popularity of smart devices, services over mobile devices are getting more and more popular, especially the mobile video services. In this paper, we propose a mobile video broadcast framework to provide each user with the most appropriate video quality according to his channel characteristic. To meet the demands of scalability and robustness,...
Quick response (QR) code is a convenient product for mobile phone users. People can use a smartphone camera to capture the code, and then decode it through a dedicated reader application. Specifically, that code stands for concise text, contact information, or a web hyperlink. Its existence assists phone users in keypad typing more easily. This paper proposes an on-street parking fee payment mechanism...
The demands for wireless network bandwidth are rapidly increasing with the expanding number of mobile users as well as the diversification in types of services. Although fast-developing communication techniques continue to enlarge the network capacity, the growth rate of the huge amount of users' demands still outstrip the gains. Learning from the information cognition process of human brains, we...
Archiving of Internet traffic is essential for analyzing network events in the field of network security. Currently, bitmap indexing is used to accelerate the indexing and search queries for archival traffic data. However, the generation of bitmap index needs large storage space, which makes bitmap index compression is a must-have function. In this paper, we propose a new bitmap index encoding algorithm...
This paper proposed a visible light communication system (VLC) based on mobile devices. The transmitting and receiving units were realized by using the display screen and camera of the mobile device. The data were converted to screen code before transmission, and were captured by the camera and decoded from the screen code to original data. The proposed system can operate up to 80Mbps theoretically...
In this paper, basic information about use of the RGBY (Red Green Blue Yellow) model for mobile visible light communication systems is presented. This document contains information about differences between the traditional RGB model and the RGBY model with respect to the area coverage and white light creation, since the adding of the yellow significantly affects system properties in many ways. There...
Mobile visual search is attracting much research attention recently. Existing works focus on addressing the limited capacity of wireless channel yet overlook its instability, thus is not adaptive to the change of channel capacity. In this paper, a novel image retrieval algorithm that is scalable to various channel condition is proposed. The proposed algorithm contains three contributions: (1) to achieve...
In this paper, we propose a practical decision engine to offload tasks from mobile devices to the cloud to realize the concept of Energy-as-a-Service. We implemented the decision engine on an Android smartphone and an Amazon ES2 and S3 clouds to conduct experiments to determine the values of system parameters used by the decision engine. The practicality of the decision engine is demonstrated by means...
Integrated into cloud environments, the mobile device overcomes its weakness of resource-limited settings and mobile cloud computing is expected to be the next big trend in cloud computing research. Current remote display protocols used in mobile cloud computing have been developed for desktop computers which are plugged all the time while connecting through LAN (Local Area Network) and it should...
In this paper, we consider a novel layered coding approach with two layers. One of the two layers, denoted by the base-layer, can be received by any receiver even if it does not have reliable channel estimates. The other, refining-layer can only be received by any receiver that has channel state information. We propose signal constellations that allow the transmission of coherent and non-coherent...
Rateless codes are representative capacity achieving codes for the binary erasure channels. We consider a network where multiple noncooperative sources with arbitrarily correlated messages communicate with a single destination. The conventional distributed rateless coding scheme introduces a general And-or tree analysis and provides linear programming (LP) based solutions only for some special cases...
A crucial point on the delivery of multicast content over mobile multicast networks is the utilization of Forward Error Correction (FEC) codes on the application layer (AL-FEC) so as to introduce robustness against arbitrary erasures on different recipients without the need of inefficient common error control methods based on data retransmission. FEC is a feedback free error recovery method where...
Recently, data sharing applications among mobile users in cloud computing platforms (e.g., Dropbox and Google Drive) are very popular. In such applications, a cloud server is responsible for synchronization among mobile users and thus the synchronization traffic can be significant when the data are frequently updated and shared by many mobile users. To address this problem, we propose a proxy-based...
In this paper, we propose SoCast — a cooperative video multicast framework to stimulate effective cooperation among mobile users (clients), by leveraging two types of important social ties, i.e., social trust and social reciprocity. By using SoCast, clients can form groups to restore incomplete video frames by obtaining missing packets from other clients, according to the unique video encoding structure...
Video delivery to mobile users is one of the largest challenges that network operators face today. In this work we consider a heterogeneous cellular network with storage capable small-cell base stations, and study this problem for pre-stored video files that can be encoded with two different schemes, namely versions or layers, in various qualities. We introduce a framework for the joint derivation...
This paper presents the exploratory stages of a project to develop Telemedicine services in the Republic of Kazakhstan. The project intends to take advantage of recent technological developments. It proposes a new video-encoding scheme as a replacement for other video codecs currently used in telemedicine systems. H.265 is suggested for telemedicine systems because it can support high-quality video...
This minitrack focuses on the research and automation techniques that can be applied to mobile platforms to ensure that software developed for these devices is secure without compromising other system properties such as performance or reliability.
Cloud-based centralized processing is one approach to improve mobile networks in terms of capacity, energy consumption, utilization, and cost. However, some joint processing techniques envisioned for such cloud-based networks require the backhauling of received symbols, usually in the form of an I/Q-stream, which requires a drastically higher data rate on the backhaul link than the backhauling of...
The primary challenge to perform mobile sign language communication over cellular network is overcoming the data loss. We proposed a new multiple descriptions coding (MDC) for protecting regions of interest (ROI) in sign language video by combining the advantages of MDC and ROI coding. The set partitioning in hierarchical trees (SPIHT) algorithm is used to generate MDC streams, and these streams are...
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