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This paper proposes the two extensive data delivery schemes of Query-based PMIPv6 (Q-PMIPv6) and Signalling Query-based PMIPv6 (SQ-PMIPv6) in wireless networks. In the proposed Q-PMIPv6 scheme, when a correspond node (CN) sends the data packet to mobile node (MN), the Mobile Access Gateway (MAG), which CN is attached to, will send the binding query messages to Local Mobility Anchor (LMA) to get the...
Mobile networks are being evolved from 3.5G to 3.9G/4G, integrated into IP core network based on IMS (IP Multimedia Sub-system). In this environment, it is essential to provide sufficient QoS(Quality of Service) mechanism which enables different services to provide enhanced user satisfaction. In this paper, we propose a new QoS mechanism providing adaptive resource allocation based on each user's...
One of the most promising frameworks to handle mobility management in wireless heterogeneous networks is the Media Independent Handover (MIH) standard. Among the services MIH is providing to achieve efficient mobility management, Information Services allow data exchanging between heterogeneous network nodes. In this paper, we propose an implementation of this Media Independent Information Services...
The Proxy Mobile IPv6 (PMIPv6) have been widely studied as a mobility management protocol to effectively use the limited wireless resources. Recently, there have been some researches to apply PMIPv6 to multicasting, which is core technology of Internet broadcast system. However, PMIPv6 based multicasting has a problem in that it shows the disconnection of services during the handover because it does...
Proxy Mobile IPv6 (PMIPv6) relies on centralized data and signaling anchoring. Communications of mobile users are tunneled to and from a local mobility anchor (LMA) for routing decision. In a hierarchical architecture this centralization generates bottlenecks and scalability issues. In distributed architectures, PMIPv6 could be extended and optimized to take advantage of the distribution of network...
Internet traffic has increased steeply in recent years, due in great part to social platforms and peer-to-peer networks. In addition, users' wireless access represents an ever-growing portion of such demand, thus posing a paradigm shift in the flow of Internet information, for which most deployed architectures are not prepared for.
The unprecedented explosion of mobile Internet users has shifted the computing paradigm to a new era, an ubiquitous one. This unparalleled growth against the underlying IP protocol has called for the design of the next generation Internet protocol, IPv6. Among the well-thought-over features of the protocol stands Mobile IPv6 (MIPv6) that turns the mobility functionality on. In this paper, we put forward...
To support IP-mobility of networks in motion, IETF proposed Network Mobility (NEMO) protocol that uses various signaling messages to ensure connectivity of the mobile nodes with the Internet. However, there has been no comprehensive cost analysis of mobility protocol entities that considers all possible costs. In this paper, we have developed analytical models to estimate total costs of key mobility...
Having Internet and wireless networks continue their dramatic advances requires a lot to be provided such as seamless and soft handover procedure. However, seamless and fast handover mechanism is still one of the main research issues. When a mobile node performs macro movements, the changes in some access nodes, base stations and access routers are unavoidable. Upon such changes, MNs must re-register...
Mobile networks can be formed in bus, train, aircrafts, satellites with a wide variety of on-board IP-enable devices and Network Mobility (NEMO) protocols are required to support uninterrupted services to ongoing sessions. Node mobility has a direct impact on the performance evaluation of various NEMO protocols. However, most of the analysis on mobility protocols used random waypoint mobility model...
Existing wireless networks typically support mobility by routing via a mobility anchor in a home network, but such via routing can result in non-optimized routes. This paper proposes a method to distribute the functions of the mobility anchor to different networks to avoid such non-optimized routes. It proposes a distributed mobility anchors architecture consisting of home mobility anchors (H-MA)...
In Proxy Mobile IPv6 (PMIPv6), any involvement by the Mobile Node (MN) is not required so that any tunneling overhead could be removed from over-the-air. However, during the PMIPv6 handover process, there still exists a service interruption period during which the MN is unable to send or receive data packets because of PMIPv6 protocol operations. To reduce the handover latency, Fast Handover for PMIPv6...
Several NEMO protocols are proposed to support network mobility in PMIPv6 networks but they ignores packet loss problem during handover. Seamless handover is very important to support real-time traffic in NEMO environment. We propose PMIP-based NEMO protocol with Efficient Buffering scheme to prevent packet loss. The Efficient Buffering scheme manages buffers with ARQ mechanism similar to Go- Back-N...
Proxy Mobile IPv6 (PMIPv6) is a network-based mobility management protocol and it does not require mobile node's involving in mobility management. In PMIPv6, the Mobile Access Gateway (MAG) incurs a high signaling cost to update the location of a mobile node to the remote Local Mobility Anchor (LMA) if it moves frequently. It may cause excessive signaling traffic and increase a high traffic load on...
IP based Wireless Sensor Networks (IP-WSN) are gaining importance for its broad range of applications in health-care, home automation, environmental monitoring, security & safety and industrial automation. In all of these applications mobility in sensor network with special attention to energy efficiency is a major issue to be addressed. Host based mobility management protocol is inherently unsuitable...
Seamless performance of communication applications is critical for today's mobile workers who are dependent on their mobile computing devices. One area of such criticality is the smoothness of handovers between Access Points (APs) in 802.11 based communications. In this work, two heuristic handover algorithms based on indoor positioning are designed and tested on 802.11 based networks. The two algorithms,...
The research and industrial community started to think of more complex application scenarios for wireless sensor networks, where the use of mobile sensor nodes is essential. The support of mobile sensor nodes in such applications requires the existence of a suitable mobility management protocol. However, existing mobility protocols, like MIPv6, can not be directly applied on mobile sensor nodes, since...
While Two-Way Ranging (TWR) is generating interest as a accurate and low-cost indoor localization technique, most TWR research focuses primarily on algorithms or error reduction, with little regard to a fundamental system-level issue: deciding which Base Stations (BS) should perform the TWR. While most researchers acknowledge the need for a scanning phase to select BSs before the ranging phase is...
Efficient vertical handover mechanisms are required to provide service continuity over available and upcoming heterogeneous wireless access networks. They should provide low delays and good accuracy to meet service requirements. In the literature, proposed mechanisms rely on a rich knowledge of users' ambient environments and contexts. The outcomes are complex mechanisms that require significant amount...
This paper presents efficient motion detection of mobile node (MN) based on weighted momentum of received signal strength (WMRSS) in support of better handoff management in wireless network. In this method, for making momentum of received signal strength (MRSS) more accurate in detecting motion of MN, weight is applied to the received signal strength (RSS) of MN according to the priority and weighted...
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