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The wide spread use of Internet allows advertisers to reach significantly more consumers through online advertisement compared to traditional advertising media. However, currently online advertisement is facing challenges associated with advertisement (ad) frauds such as ad replacement, ad stacking, click fraud, and click hijacking. It is important to teach students this emerging topic, and help students...
Multimedia application on mobile phone platform is a hot topic in Information Technology industry accompanying with the advances of technologies in Internet, smart operating system and wireless network. The development of streaming media technology boosts the audio and video application over the Internet. This paper describes a mobile video live streaming system with Wi-Fi/4G mobile phone to capture...
VoIP aims to provide safe, high efficient and low cost voice communications. It can even offer more comprehensive and quality services than the traditional telephone. Soft-Switch has the characteristics of simplicity, openness and flexibility. This paper advocates the VoIP voice communication system based on Soft-Switch. For its implementation we design and analyze the overall structure of the system...
This article deals with interfacing of Xilinx MicroBlaze (UB) softcore microprocessor to full duplex, 1 Gb/s media converter from metallic to optical interface, which is employed in experimental FSO link as a transceiver. The MicroBlaze harvests statistical data from the link and allows administration of the link via interactive web user interface. The MicroBlaze is connected to the data bus of the...
Customer support service has now become an integral part of every large enterprise since customer satisfaction is largely determined by the quality of service he/she receives after purchase of a product/service. Traditionally legacy phone based PBX systems are deployed to provide customer support service where operators are appointed to receive calls and respond to customers' queries or complaints...
Streaming Feed has become one of the most used utility now-a-days. Starting from Home-Security to Business Surveillance, streaming feed is utilized everywhere. However, due to unstable network bandwidth, frequent buffering and delay occurrence usually creates degraded user experience. One of the ways to avoid this is to use Adaptive Bit rate Streaming. Among various protocols supporting this Adaptive...
NAT (Network Address Translation) traversal is one of the main obstacles to restrict the development of SIP (Session Initiation Protocol). This paper analyzes problems about SIP/NAT traversal and proposes a scheme for SIP operating through NAT with the cooperation of SIP server and RTP relay server and designs the architecture of the relay server according to the characteristics of the mobile Internet...
Digital Living Network Alliance (DLNA) puts forward an interoperable architecture of home network equipment to implement the simple and seamless interoperability between household appliances, mobile devices and computers, so as to enhance and enrich users' experience. Because DLNA is designed to implement the sharing of multimedia resources between devices in a family environment, it does not support...
Video surveillance service has become one of the most popular services of video data center. Different from traditional VoD and IPTV services, video surveillance service is based on video data center which receives video stream from IP camera and forward the video stream to end user. However, current works only consider the forwarding video stream scheduling from media server to end user and focus...
Traditional observational research methods required an experimenter's presence in order to record videos of participants, and limited the scalability of data collection to typically less than a few hundred people in a single location. In order to make a significant leap forward in affective expression data collection and the insights based on it, our work has created and validated a novel framework...
Transfer data in only one network segment is not a sticky work. However, communication between different network segments is worth studying. Especially when one or both sides network segment behind NAT devices. This text has a brief description about the classification of NAT, and explains the problems that need to be solved about NAT traversal. According to the features of NAT and the needs of our...
SIP initiates a call using a three way handshake between User Agents (UAs). Each time a SIP UA initiates a call, it has to perform capability negotiation which involves resolving the caller, selecting an audio codec or a video codec among other things.
This paper compares two telecommunication standards for plaintext transmission over Session Initiation Protocol (SIP): SIP extension for Text over Internet Protocol (ToIP) and SIP extension for Instant Messaging (IM). ToIP provides a real-time text service, while IM provides a near realtime text service. Originally, SIP is a Voice over Internet Protocol (VoIP) call signaling protocol that uses Real-time...
Personal information is jeopardized when under net attacks. Information security can not be assured by existing method called Strong Hiding Commitment Schems (SHCS)and Cryptographic Puzzle Hiding Schemes(CPHS), because of their failures to prevent selective jamming. Medial Node Method(MNM) and Embedding Future Key Method-EFK were introduced in this paper to realize pinpointing, blocking and resolving...
Networks are experiencing a paradigm shift from textual data to high data rate traffic, especially carrying streaming media. Traditional network architectures can generally not keep up with this change. Software Defined Network architectures try to enable network engineers to more easily develop new transmission architectures. Current approaches of media transport, e.g. as defined by RTSP/RTP, are...
In this paper, we propose a hybrid Peer-to-Peer (P2P) architecture for Content Delivery Networks (CDNs). The basic idea of the proposed method is to prepare a P2P overlay for each Autonomous System (AS) and to map nodes to the P2P overlays by referring to the information maintained by the DNS server deployed by the system. The performance of the proposed scheme is evaluated by simulation. The result...
Customer Edge Switching (CES) provides policy based reachability to hosts in a private network without the disadvantages caused by traditional mechanisms for traversing Network Address Translators (NAT). The solution enables transparent communication across address realms without keep-alive signalling and application layer code in end systems as required by the current recommended approach to NAT...
Powerful, user-friendly mobile devices and cost-efficient wireless access technologies have lately changed the landscape for smart home environments to a large extent. Developments in the media landscape with large flat screens, new capturing devices, and large digital media libraries have also changed the way smart home environments are used. This paper presents and evaluates an architecture for...
With the ongoing convergence of telecommunication networks towards an all IP architecture, service providers are challenged by the need of continuously renewing their offer of value-added multimedia services. In this paper, we propose an abstraction layer to be used in application servers, based on the concepts proposed in the so called Java Call Control (JCC) specifications. It simplifies the creation...
In order to accurately assess the impact of geographical location on the energy footprint of digital media requires energy usage models of the Internet that take into account the geographic distance between both users and data providers. In this paper, we present the first such model to do this. Given the specific location of a data source and a user, we use traceroute data to estimate the number...
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