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In order to provide ubiquitous communication, seamless connectivity is now required in all environments including highly mobile networks. By using vertical handover techniques, it is possible to provide uninterrupted communication as connections are dynamically switched between wireless networks as users move around. However, in a highly mobile environment, traditional reactive approaches to handover...
Due to the increased usage of smart phones, mobile users now have access to a diverse set of services. These mobile services have increased the demand for faster wireless networks. In this paper, we examines mobility support functions in soft handoff for IP-based mobile network, and distinguishes the control areas in the cell's range areas for mobile network's efficient session control (SC). Based...
In the next generation mobile network, the concept of virtual network slice (VNS) has been proposed to facilitate the building of a dedicated and customized logical network with isolated resources, which can be defined as a subset of network resources allocated to a virtual operator or service provider. Each VNS is associated with a virtual network function forwarding graph (VNF-FG) to accomplish...
This paper presents an extended mobile lattice gas model allowing pedestrian's variable step size and reveals the effects of various walking step size on pedestrian evacuation. The possible sizes are scanned before determining the moving directions and the impacts of the step size on pedestrian's path selection are considered. The evacuation process of pedestrians from a room with an exit is simulated...
The heterogeneity of the wireless network environment offers the possibility to the mobile user to select between several available radio access network technologies. However, selecting the network that enables the best connectivity is not trivial given that in general the network characteristics vary widely, not only in time, but also depending on the user location within each network. In this context,...
Non-orthogonal multiple access (NOMA) is considered as a promising technology for the fifth generation mobile communications. Energy-efficient resource allocation scheme is studied for a downlink NOMA wireless network, where multiple users can be multiplexed on the same subchannel by applying successive interference cancellation technique at the receivers. Most previous works focus on resource allocation...
Seamless connectivity plays a key role in realizing QoS-based delivery in mobile networks. However, current handover mechanisms hinder the ability to meet this target, due to the high ratio of handover failures, packet loss and service interruption. These challenges are further magnified in Heterogeneous Cellular Networks (HCN) such as Advanced Long Term Evolution (LTE-Advanced) and LTE in unlicensed...
In wireless sensor networks, anchor positions play an important role for high localization accuracy. Planning an efficient path for mobile anchor nodes (MN) is critical for required anchor positions. In this work, an adaptive path planning algorithm is proposed for mobile anchors based on Gauss-Markov mobility model. The approach, which the velocity adjustment, the perpendicular bisector and the virtual...
Among the infinite issues in the world of internet, the vertical handover (VH) is one of the most important, in fact, the number of internet users is exponentially growing, and such fast that it has reached multi-millions of people these last two decades, moreover, users are willing to connect wirelessly anytime and anywhere, to the best available technology, under the Always Best Connected (ABC)...
Internet Protocol version 6 (IPv6) is presently gaining demand in almost every region of the world. In near future, IPv6 would be the key area of research and expansion in the internet protocol standards. IPv6 was built with the aim of improving the mobility and communications among these devices. Mobile IPv6 is becoming a highly demanding research area under which a lot of investigations are yet...
The handover technology is one of the most important technologies for the quality of real-time operation in mobile Internet. However, current IP-level mobility protocols have difficulties meeting the stringent handover delay requirements. In this paper, we propose an enhanced handover scheme in a heterogeneous mobile environment with the support of the Media Independent Handover (MIH) Services. The...
Internet of Things is an evolution from computer networks to a network of interconnected objects such as books, cars, sensors, etc… In recent years, interest in the applications of Wireless Body Area Networks (BANs), have grown significantly and this opens up an important number of challenges such as mobility management. Locator/Id Split Protocol (LISP) deals with the traditional IP problems like...
NEtwork MObility (NEMO) is a host-based mobility management protocol, which efficiently manages Internet connectivity of multiple nodes on the move. Proxy Mobile IPv6 (PMIPv6), a network-based mobility management protocol, tries to offload low-power mobile devices though managing mobility signaling by the infrastructure devices. To support network mobility in PMIPv6-domain, several schemes have been...
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...
Current networking devices are limited in their capabilities to dynamically adjust their behaviour with respect to the location changes induced by the mobility of communicating partners. This adversely affects the performance of applications running on top of IP-based wireless networks. Software Defined Networks (SDN) provide the strength of network programability which facilitates on-demand customization...
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...
For mobile computing, it is important to have seamless mobility as the mobile node (MN) roams. Handover time needs to be optimized in order to minimize packet loss and latency. Fast Handover for Mobile IPv6 (FMIPV6) is an extension to the MIPv6 in order for a MN to regain its IP connectivity and enable the MN to send/receive data packets immediately following a handover. One of the main problems associated...
Early detection of children with autism spectrum disorder (ASD) has been of great interest to researchers due to an increase in the rate of autism incidence around the world. However, a diagnosis of ASD is still challenging to receive in a timely manner for the large-scale population because the current diagnostic practice requires considerable cost and time, and do not provide quantitative feedback...
The growth of telecommunication devices has driven the development of technology of Mobile IPv6 (MIPv6), which supports the concept of seamless communication. One of MIPv6 extention is Hierarchical Mobile IPv6 (HMIPv6) were developed to reduce the delay at the time of vertical handover process by utilizing Mobility Anchor Point (MAP) whose enhancement to shorten the process of configuring the IP address...
Partial frequency reuse (PFR) is one of the key techniques to improving max-min fairness for cell-edge user equipment in the fourth generation of mobile communication systems. Recently, multilayer PFR schemes have been proposed, which are considered to be a promising evolution of this technique. In this paper, we propose an analytical framework for multilayer PFR scheme design, which uses a triplet...
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