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Rapid development has equipped mobile devices with heterogeneous wireless access capabilities. A lot of work has been done on WLAN-3G integration to support seamless connectivity and global roaming. Most recent research trends focus on interwork gateway or intersystem roaming framework. In this paper, we introduce an application framework providing seamless connectivity for mobile devices across heterogeneous...
In recent years, a lot of terminal mobility support schemes have been proposed. These schemes mainly focus on providing seamless mobility by reducing the handover delay. They work well when the handover takes place between two overlapping wireless networks. However, in some worst scenario, it is possible that a mobile node (MN) becomes disconnected from the network for some time before it can join...
As a local mobility management protocol, Proxy Mobile IPv6 (PMIPv6) is designed to enable mobile nodes to move in a domain without any involvement in the mobility signalling operation. However, a single domain cannot satisfy mobile nodes' movement requirement. Hence, we propose a solution to enable mobile nodes to move across multiple PMIPv6 domains. We introduce a new network entity called traffic...
In disruption tolerant networks, aggressive packet forwarding scheme like flooding has a major drawback in terms of network congestion. In this paper, we proposed a new routing algorithm, called adaptive randomized epidemic routing (ARER). ARER dynamically adjusts the forwarding probability for each message according to a new metric, replications density. Meanwhile, ARER arranges the forwarding sequence...
To improve the local mobility performance of a wireless network, we present a new framework, namely Efficient Framework for Local Mobility (EFLoM). In EFLoM, we introduce three entities: Local Anchor Router (LAR), Wireless Access Gateway (WAG) and Mobile Node (MN). LAR is a router that is in charge of MN's IP mobility management. It keeps track of MN's movement, and delivers the MN's packets to its...
In this paper, we propose a mobility management scheme with quality-of-service(QoS) support for heterogeneous multihomed mobile node. With this scheme, the multihomed mobile node can move between networks seamlessly and at the same time, utilize all available links based on the QoS requirement. Session initiation protocol(SIP)[l] is used in session management and each multihomed node is identified...
Having multiple wireless interfaces in single multihomed mobile node provides some capabilities in term of path redundancy, load balancing, and available aggregate bandwidth. In this paper, we propose a scheme for mobility management to enable cooperation of multiple wireless interfaces by taking into account the quality of service (QoS) parameters both from network and application. This scheme support...
In ad hoc networks, the vulnerability of nodes to routing attacks is a serious concern. In this work we propose a cross-layer based routing attack detection system for ad hoc networks. Previous work that uses mostly audit trails collected from the routing protocol suffers from inadequacy of features to construct a reliable model for detecting anomalous routing behavior. On the other hand, use of linear...
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