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Recently, network virtualization technology (NFV) is being studied to reduce network operation cost, mainly in telco companies. Network virtualization technology is a technology that enables software control by abstracting computing, server, and network functions that were formerly hardware-oriented. Network virtualization technology provides the opportunity for small and medium enterprises with technology...
In this paper, we introduce MVPN, a framework for building secure Virtual Private Networks (VPNs) with a novel Mobile IPv6 based Moving Target Defense strategy. Our approach aids in combating remote attacks against a VPN server. By eliminating the static address of the server, we make it difficult for an attacker to find the server. The server''s address is randomly changed at a certain interval creating...
VXLAN (Virtual extensible Local Area Network) is an edge-overlay model that uses L2-in-L3 tunneling protocol. It has attracted attentions for multi-tenant datacenter networks. For the deployment of VXLAN in legacy networks, networks can include VXLAN gateways which forward traffic between VXLAN and non-VXLAN environments. This paper proposes the design of VXLAN gateways which are not in servers, but...
This paper describes the design and implementation of MBS (multicast & broadcast service) server for mobile IPTV service in WiMAX networks. Based on interoperability requirements of WiMAX networks, the presented MBS server was implemented for mobile IPTV services and basically provides MBS service announcement and session management functions, dynamic MBS zone management, and MBS data transmission.
In this paper, a novel prefix-based patching algorithm named DP2 (Dynamic Prefix-based Patching algorithm) is proposed for mobile IPTV service in the WiBro system. Proposed algorithm increase the resource utilization of wireless bandwidth and server. It uses the prefix caching in proxy server to batch those requests that demand the same video. This algorithm just requires the mobile terminal can receive...
The main purpose of this paper is the functional design of BM-SC (Broadcast Multicast Service Centre) to support IPTV. BM-SC is newly defined by 3GPP/LTE to support delivering IMS (IP Multimedia Subsystem) over wireless broadband network. Delivering Mobile IPTV (Internet Protocol Television) over LTE (Long Term Evolution) network is requires more complex and more flexible functional operation. A functional...
We describe the design and implementation of a programmable and expandable OBD-device that is capable of not only reading the various vehicular parameters from the ECU, but also detecting whether or not the vehicle slippage has occurred in real-time. The information is transmitted to a central server via a cellular network along with GPS information to allow real-time monitoring of both the vehicle...
Delivering Multimedia services such as Mobile IPTV over 3GPP/LTE based on Femtocell networks has been a main purpose according to the demand grows in the world. The Femtocell networks, which is a small cellular base station in home and small business environment. It is best solution for operators to improve indoor coverage and network capability. In this paper, we designed functional entities of 3GPP/LTE...
With the development of wireless communication technologies and popularity of smart phones, many people are using location-based services (LBSs). However, since users continuously request queries to LBS server by using their exact locations, their privacy information is always in danger. Because the existing techniques provide user's privacy protection operating on centralized system, an anonymizer...
To backup the remote education service, the software architecture of IPTV Set-Top device embedding Grid-CDN (Content Delivery Network) based on mesh-pull P2P (Peer-to-Peer) technology has been identified. In this paper, we proposed a method supporting a remote education service such as 1:1 or 1:N between subscribers over IPTV service networks, and implemented on a IPTV Set-Top device. In addition,...
As XML is de facto becoming a standard for information representation and exchange in IT world, XML release methods are receiving intense attentions. The crucial requirement of XML release is scalability that affords to manage efficiently large number of users and great amounts of data. Although many existing approaches (e.g. famous SDI approach) have challenged to support XML release, because they...
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