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Due to the explosive growth of multimedia content (especially videos) over the Internet, content-centric networking (CCN) is proposed to remit the problems of modern bandwidth-intensive Internet usage patterns. Additionally, the current streaming media coding is designed for video service for IP networks. However, there are few researches who concentrate on efficient streaming media coding for the...
Private Information Retrieval (PIR) allows users to retrieve information from a database without revealing the content of these queries to anyone. The traditional information- theoretic PIR schemes utilize multiple servers to download single data block, thus incur high communication overhead and high computation burden. In this paper, we develop an Information- theoretic multi-block PIR scheme that...
Cloud gaming systems host the game in the cloud, and stream players' gaming videos to the terminals in the form of encode video frames. To address the high bandwidth issue of real-time gaming video transmission, a cloudlet-assisted multiplayer cloud gaming system was proposed to encourage cooperative video sharing via a secondary ad-hoc network, on the purpose of exploiting the similarities of video...
IP Multicast benefits data center networks (DCNs) for saving bandwidth and improving throughput. In-packet Bloom filter (BF) has been recently proposed to achieve efficient and scalable multicast in DCNs, where a Bloom filter encodes all nodes in a multicast tree into the packet header for making routing decisions. However, prior work incurs large traffic overhead due to tree encoding and false positive...
Base distributed database technology has been widely used in missive data processing. The problem of the efficiency of multi-dimensional data query which is caused by its single primary key indexing becomes more apparent. This paper proposed and implemented a multi-dimensional query method based on Hilbert space-filling curve. Using the Hilbert space filling curve to make the multi-dimensional data...
Increasing multimedia applications on the networks e.g., video and voice over the Internet, have attracted lots of interest to the distributed storage systems. Recently, lots of research has been performed on applying network coding to distributed storage systems. Although there are intensive theoretical studies in this field, very few practical simulations have been reported. We simulate distributed...
Cloud computing the newly emerged service oriented paradigm, has changed IT industry significantly. Virtualization is the main technique to empower cloud computing by separating compute environments from the actual physical infrastructure and creating virtual machines (VMs). Mapping of these virtual machines to the physical servers is called virtual machine placement problem and known to be NP hard...
Currently it appears the latest video coding H.265 or known as High Efficiency Video Coding (HEVC). In the application of video streaming services using MPEG Dynamic Adaptive Streaming over HTTP (MPEG-DASH), the video quality level representations contained in the Media Presentation Description (MPD) composed by several video segments. The problems that arise when setting the length of the video segment...
In Internet of Things (IoT), both physical things (such as devices, gateways and commodities etc.) and virtual things (like multimedia content and application software) are assigned unique IoT identifiers (IoT ID), which are similar to the domain name used for locating online resources in Internet. However, until now the format of IoT ID is not globally unified due to all kinds of reasons and thus...
For the last few years the idea of large volume resources storage with usage by indirect organizations has become widespread. Such services are often termed “data outsourcing” or “cloud storage”. This service allows information owner (clients) to allocate their data on the server for certain payment. In turn, the server must provide integrity and availability of the data. Thus, using scarce technical...
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...
To reduce the probability of data unavailability, it is extremely important to quickly recover failed data in a (k+r, k) erasure-coded storage cluster. In practice, storage nodes in a large-scale storage system have various network bandwidths and I/O capabilities, therefore, the heterogeneity of storage systems increases along with the growing scale. Both traditional recovery scheme and Fastest recovery...
This paper considers the communication and storage costs of emulating atomic (linearizable) multi-writer multi-reader shared memory in distributed message-passing systems. The paper contains two main contributions: 1) We present an atomic shared-memory emulation algorithm that we call Coded Atomic Storage (CAS). This algorithm uses erasure coding methods. In a storage system with 'N' servers that...
There is an urgent need to encrypt data in databases to protect sensitive data. But, encrypted data cannot be efficiently queried because the data has to be decrypted. To resolve this problem, many Order Preserving Encryption (OPE) schemes were suggested. The comparisons operation can be directly performed on encrypted data using OPE schemes. According to the literature, the precise security target...
Performance analysis of Network Coding (NC) is becoming an increasingly important issue in today's data communication systems. This is because of its success in achieving the min-cut capacity of multicast networks, leading to throughput improvement at the destination nodes. The implementation of NC requires a thorough investigation of its impact on relevant queuing systems. In this paper, we analyze...
Network connectivity offers the potential for a group of musicians to play together over the network. This paper describes a trans-Atlantic networked musical livecoding performance between Andrew Sorensen in Germany (at the Schloss Daghstuhl conference on Collaboration and Learning through Live Coding) and Ben Swift in San Jose (at YL/HCC) in September 2013. In this paper we describe the infrastructure...
The MusiNet research project aims to provide a comprehensive architecture and a prototype implementation of a complete Networked Music Performance (NMP) system. In this paper we describe the current status of the project, focusing on critical decisions regarding the system's architecture and specifications, the low delay audio and video coding techniques to be employed, the media relay design, and...
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...
Mobile augmented reality (MAR) systems utilize local features to represent structures such as corners or blobs in query videos and database images. Local features are compressed and sent to servers to perform query-database matching. The compression efficiency is important for the server-based MAR systems in terms of network latency. Conventional compression methods handle video frames independently...
Video transport over HTTP is becoming more and more popular. Many video service providers construct huge content distribution networks(CDN) to support HTTP streaming service, however, they seldom exploit the benefits of multiple servers to achieve higher bandwidth and reliability by parallel streaming. In this paper, we study the problem of jointing multi-CDN and LT-coding for video transport over...
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