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This paper proposes an extension of Proxy Mobile IPv6 (PMIPv6) with bicasting for multi-homing and mobility support. In the proposed scheme, the Local Mobility Anchor (LMA) extends its Binding Cache Entry (BCE) for support of multiple bindings, and a mobile node (MN) performs the binding update to LMA. To support the handover, the LMA begins the bicasting of data packets to the New-Mobile Access Gateway...
This paper proposes an enhanced handover scheme of the Proxy Mobile IPv6 (PMIPv6) with partial bicasting in wireless networks. In the proposed PMIPv6 handover scheme, when a mobile node (MN) moves into a new network and thus its Mobile Access Gateway (MAG) performs the binding update to the Local Mobility Anchor (LMA), the LMA begins the `partial' bicasting of data packets to the new MAG as well as...
Mobile hosts are failure prone. An efficient checkpointing technique and a failure recovery scheme together can make a mobile computing system fault-tolerant. For efficient recovery, information of a mobile host should be kept in an organized manner. Efficiency of a recovery scheme can be measured in terms of time and cost. Mobile hosts move randomly causing handoff. Information of a single mobile...
One of major objectives of the 4G wireless network architecture is to facilitate seamless mobility of users between heterogeneous networks while satisfying QoS requirements. The moment at which a user should switch from the current network to another where better resources can be provided is still a hot research topic. This work studies a new criterion for triggering the vertical handoff process....
Handoff management is a key element in mobile networks to sustain an ongoing session of a user. In this paper, we propose a handoff management technique to reduce handoff delay and call dropping. This handoff management technique incorporates a prediction component which will predict a UE's next cell and best handoff time. The prediction component is realized using a predictive model which uses earlier...
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)...
To support seamless communications for roaming users over heterogeneous wireless networks, mobile ad-hoc networks (MANETs) are receiving a special interest in the research community due to its infrastructure-less nature. MANETs can help to achieve a seamless service for users roaming over areas with no coverage from other wireless networks. As a result, MANETs are a key access network component of...
One of the most challenged area in fourth generation wireless network is service continuity, i.e., when a mobile node is moving in an overlapping area continuous service must need so there a technique is used called “HANDOVER”. This technique is used to achieve the service continuity, for this we must rely on seamless vertical handover techniques with minimum processing delay. Thus it is necessary...
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...
Future wireless networks will coexist and combine resources over an IP-based infrastructure for ubiquitous connection support. Thus, to support non-perceptible connection migration between the heterogeneous wireless networks in this converged environment during mobility, seamless vertical handover mechanisms are a necessary requirement. Seamless handover mechanisms ensure non-perceptible interruptions...
Previous works on network coding capacity for wireless networks have taken the assumption that the network is stationary. In this paper, the mobility of ad hoc networks is considered as a key factor influencing network capacity, and a new and unified analytical expression of the capacity of a mobile ad hoc network applying network coding is derived under the two main mobility models, including random...
Over the last few decades, the Internet has grown exponentially, bringing about hard questions about its future sustainability. At the same time, the proliferation of wireless and mobile devices with Internet connectivity has created a new landscape for a wireless future Internet. It is evident that in the emerging “Future Internet” (FI), wireless and mobile networking will remain significantly important,...
Roaming across heterogeneous wireless networks such as wireless wide area network (WWAN) and wireless local area network (WLAN) poses considerable challenges, as it is usually difficult to maintain the existing connections and guarantee the necessary end-to-end quality-of-service (QoS). This paper proposes a novel end-to-end QoS guaranteed seamless handover scheme, which can maintain the connections...
In the next generation wireless network a mobile node will be multihomed to utilize multiple wireless access technology simultaneously. The seamless mobility management and quality of service support are the challenging issues for such a heterogeneous wireless network. Each multihomed mobile node has multiple care of addresses corresponding to multiple network interfaces associated with it. An address...
The increasing demand for all time and every where services requires the network operators to integrate different kinds of wireless and cellular networks. To enable this integration, it is important that users can roam freely across networks. But, as different technologies are involved, the problem of vertical handover (VHO) needs to be addressed. Solutions in the literature lack intelligence and...
Over the past few years, rapid advances in wireless broadband networks have been driving the evolution of communication and network technologies towards new mobile services for users. Handover management is still one of the most challenging issues to be solved for seamless mobility in wireless networks. To support mobility on terminal stations mobile WiMAX has been standardized. Moreover to provide...
Roaming across different access technologies permit people to access Internet via heterogeneous wireless networks such as WLAN, WiMAX, GPRS, 3G and Beyond 3G networks. The convergence of heterogeneous wireless access networks with handoff support enable mobile nodes to freely move in and out of any available networks without breaking the connection to the Internet. In this paper, an Adaptive Cross...
Most traditional MAC protocols proposed for wireless networks assume static Network Units (shorted as NUs), which usually lead to performance degradation in mobile scenarios. In this paper, a novel hybrid MAC protocol, called MA-MAC, was presented for multi-hop mobile Tactical Data Link networks based upon the mobile characteristics of NUs. The basic point of MA-MAC is that the transmit mode of each...
This paper proposes a measurement mechanism of IP performance metrics for network mobility (NEMO) in heterogeneous wireless networks. The key idea of the proposed mechanism is that mobile nodes (MNs) can get IP performance metrics irrespective of the presence or absence of measurement functionality. That is, the proposed mechanism does not require MNs to be involved in measuring IP performance metrics...
Since the capacity of a wireless link depends on the distance between its transmitter and receiver nodes, the optimal placement of nodes in the wireless network is important to improve the system efficiency. We study this issue in this paper considering a wireless network that consists of multiple nodes that do not have controllable mobility and a relay node that has controllable mobility. We model...
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