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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...
Mobile messaging has become a trend in our daily lives. The current schema for messaging is to route all the messages between mobile users through a centralized server. This scheme, though reliable, creates very heavy load on the server. It is possible for users to communicate through peer-to-peer (P2P) connection, especially over urban networks characterized by heavy user traffic and dense network...
The popularity of mobile cloud computing has provisioned a new paradigm for mobile devices to offload their computation to remote mobile cloud data center for task execution. However, the mobile cloud data center may suffer from dramatic energy consumption. To solve this problem, we propose to migrate the workload from remote cloud data center to nearby cloudlets, so as to relieve the pressure of...
Indoor localization in multi-floor buildings is an important research problem. Finding the correct floor, in a fast and efficient manner, in a shopping mall or an unknown university building can save the users' search time and can enable a myriad of Location Based Services in the future. One of the most widely spread techniques for floor estimation in multi- floor buildings is the fingerprinting-based...
With the increasing capabilities of mobile devices such as smartphones and tablets, there are more and more mobile sensing applications such as air pollution monitoring and healthcare. These applications usually aggregate the data contributed by mobile users to infer about people's activities or surroundings. Mobile sensing can only work properly if the data provided by users is adequate and trustworthy...
Home network providers have many issues to resolve in providing home network services with an expandable, reliable, flexible, and low-cost structure to accommodate the expanding market environment. Current client-server systems have various problems, such as complexity and high costs to provide home network services. However, these problems can be simply solved by employing the P2P communication terminal...
Next Generation Networks (NGN) is the evolution of the telecommunication core. It aims at the integration of various wired and wireless technologies to satisfy user requirements and to provide ubiquitous coverage anywhere, anytime. This integration of heterogeneous networks requires efficient and fast switching from one network to another which needs a proactive handover and authentication process...
With the proliferation of multiple wireless technologies and smartphones with enhanced radio capabilities, it has become imperative to deliver services that can work seamlessly across heterogeneous networks. As smartphones advance in their capabilities, there is an increasing adoption of services with realtime delivery constraints (e.g. video telephony, streaming). In a heterogeneous network environment,...
As wireless access technologies grow rapidly, the recent studies have focused on granting mobile users the ability of roaming across different wireless networks in a seamless manner thus offering seamless mobility. The different characteristics of each wireless technology with regard to Quality of Service (QoS) brought many challenges for provisioning the continuous services (audio/video streaming)...
Handover efficiency in wireless packet switched networks is very crucial in providing QoS guarantees to real time applications. Mobile IPv6 (MIPv6) is a prevalent choice for mobility management in future generations networks. Although MIPv6 benefited from the design knowledge of its predecessor i.e. MIPv4 and is more efficient, it still suffers from high handover delays. The main reason for MIPv6...
The emerging 3G-WLAN heterogeneous networks are attracting technologies for the next generation wireless communication system. A challenging issue for the technologies is how to reduce the secure handoff delay when users roam across multiple domains. Generally, the re-authentication procedure in a visited domain causes a large delay during a secure handoff that always involves communication with the...
Abstract: According to the mobility support characteristics and demands in the Identifier/Locator separation mapping network and aiming at the switching delay problem in the existing mobile switching technology, a seamless switching method based on reverse routing redirection is proposed in this paper. This method consists of the mobility detection, mapping information update and flow deflection,...
As the mobile Internet increases with the popularization of smartphones, the conventional services are gradually being expanded to the wired and wireless integrated environment. These changes in the network environment require a new paradigm for the pursuit of safe and stable communication. In this paper, we propose a Seamless and Secure service Framework (SSF) that can maintain a sustainable secure...
Cloud Computing is bound to become an integral part of the enterprises which seek to minimize their services cost by availing the services of application, platform, information, storage and mobility that the cloud provides. Mobility Services in Cloud enable nodes to move seamlessly between access networks while maintaining network connectivity and utilize uninterrupted services while on the move....
In this paper, we propose a Seamless and Secure service Framework (SSF) which guarantees secure association between user's terminal and safety critical system such as payment gateway by exploiting both user information and network information. Despite the leaks of personal sensitive information, SSF provides very safe service environment in wired and wireless convergence network that vertical handover...
Mobile IPv6 has been developed for quite a few years now, but it has yet to bring its constant connectivity and global reachability benefits to mobile devices in real world scenarios, mainly due to lack of trouble-free and secure network access and data transmission for devices as they roam. In this paper we propose a Unified Architecture that combines the strengths of Mobile IPv6 and AAA services...
In this paper, we propose L3 handover scheme using SIP messages to minimize handover latency and packet loss in a MN with single interface. Packet loss and handover latency arise from L2/L3 association delay and IP configuration delay when the MN transfers internet connectivity from the serving access router to the target access router using legacy terminal mobility mechanisms. Therefore, seamless...
As a promising network-based mobility management method that does not require active participation of mobile nodes (MNs), Proxy Mobile IPv6 (PMIPv6) is attracting considerable attention among the telecommunication and Internet communities. It remains an open issue how to build a scalable PMIPv6 domain that is able to support a large number of MNs while keeping handover delays low. In this paper, we...
With deploying heterogeneous communication devices with different kinds of access networks, it is one of the promising services to transfer an active session from one device to another. IETF SIP can provide the ubiquitous service regardless of underlying networks and device types. In this paper, we investigate two mainstream using SIP, IMS and P2PSIP, and propose interworking architecture to provide...
Ubiquitous computing for context aware system collects information from many static and moving devices as well as sensor integrated objects. To provide valuable services, it is necessary to track the location of the users or objects. There are many possible applications that can apply location-assisted service such as child tracking, supermarket trolley alert system, firefighter tracking and many...
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