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In industrial automation fields, seamless connection of the capabilities of smart wireless devices to a high-bandwidth and deterministic real-time Ethernet-based industrial backbone has emerged as an important research focus. This study describes a method for integration of WirelessHART networks into the Ethernet Powerlink backbone. A Linux-based open Powerlink-WirelessHART gateway (PW-GW) solution...
IPv6 mobility management is one of the most challenging research topics for enabling mobility service in the forthcoming mobile wireless ecosystems. The Internet Engineering Task Force has been working for developing efficient IPv6 mobility management protocols. As a result, Mobile IPv6 and its extensions such as Fast Mobile IPv6 and Hierarchical Mobile IPv6 have been developed as host-based mobility...
Proxy Mobile IPv6 (PMIPv6) has been developed by the IETF as a network-based mobility management protocol to support the mobility of IP devices. Although several proposals have been made for localized routing optimization, they don't take into account handover management and localized routing simultaneously. In fact, the localized routing state is only restored after the handover, leading to packet...
With the explosion in traffic consumption, the limitations of centralized mobility protocols became a concern. As a result, the concept of distributed mobility management (DMM) emerged. Basically, DMM brings the mobility anchors closer to the users, avoiding issues as single point of failure and non-optimal routing. On the other hand, IP multicast, being designed for efficiency, is a key method for...
Increasing demand for ubiquitous high speed data access has resulted in widespread deployment of heterogeneous wireless networking domains. Integration of heterogeneous networks presents some considerable challenges which include the demand for seamless handoff, continuity of data traffic & multimedia sessions and central authentication system, billing & security. In this paper the...
The number of wireless applications, services and devices such as mobile telephone handsets, laptops and personal digital assistant (PDAs) are growing rapidly. The next generation wireless technology systems are being devised with the vision of heterogeneity where a mobile user will be connected with multiple wireless networks like GPRS/UMTS, IEEE 802.1x, WiMAX and satellite etc. To connect the above...
The existing response-time analysis for messages in Controller Area Network (CAN) with CAN controllers facilitating transmission abort requests in transmission buffers does not support mixed messages. The existing analysis assumes that a message is queued for transmission either periodically or sporadically. However, a message can also be queued both periodically and sporadically using a mixed transmission...
With the media-independent pre-authentication (MPA), a mobile node (MN) performs the pre-authentication and pre-configuration to get the new care-of-address (nCoA) as the layer 3 handover before the layer 2 handover, in order to lessen handover delay. However, in reality, the MN may perform the layer 2 handover due to the link going down before completing the layer 3 handover. It will cause the packet...
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,...
Beaconless position-based forwarding protocols have recently evolved as a promising solution for packet forwarding in wireless sensor networks. Quite a few variants of this class of forwarding protocols have been proposed over the years. One common observation is that they have all been evaluated from the perspective of a single node. Although useful, but a solid understanding of the end-to-end performance...
The use of multi-interface devices has grown at the same time as the demands for efficient mobility services in heterogeneous networks. In this scenario, service continuity has become a crucial requirement. In order to achieve these demands, efficient handover schemes should be deployed, aiming the Seamless Handover. However, handover delay and packet loss are still issues to be solved. The main purpose...
Mobile IP allows mobile nodes (MN) to keep reachability from correspondent nodes (CN) while moving around in the Internet. Every MN has a fixed home address (HoA) maintained by the node called home agent (HA.) The HA acts as a proxy of the MN, and forwards all packets sent to the HoA. In order to continue communication, the MN tells its location to the HA by sending binding updates (BU) every time...
To reduce the burden on the mobile host and provide efficient mobility management, network-based mobility management such as pMIPv6 has been standardized. But, this protocol is usually used in a single domain. Thus, inter-pMIPv6 mobility management protocol is needed. We propose inter-LMA handoff and location management scheme using core-edge separation network for global mobility management. The...
New generation of mobile wireless networks utilizes IP mobility protocols to handle handovers between their different subnets. Among existing options, Proxy Mobile IPv6 (PMIPv6) as a network-based protocol presents higher handover performance comparing with its client-based counterparts such as Mobile IPv6 (MIPv6) and Hierarchical Mobile IPv6 (HMIPv6). Nevertheless, the PMIPv6's operation is limited...
This paper describes a framework of mSCTP handover in the crossover mobility patterns and analyzes the handover latency for the MN. We see that the throughout of the data transmission could be degraded, as the crossover movements occur more frequently. We use MIP and it can record some parameter and mSCTP will not establish connection again, so it will improve transmission performance. More importantly,...
We present a novel protocol for IEEE 802.15.4 beacon-less sensor networks, which provides support to RSSI-based localization algorithms to estimate the position of mobile nodes. The proposed protocol is designed to allow the application to change the mobile node operation mode on demand. In this way it is possible to manage the trade-off between energy consumption and achieved position accuracy. First...
Resilience, load balancing and ubiquitous support can be improved by multihoming configurations that explore the plurality of wireless technologies available nowadays. Nevertheless, efficient multihoming configurations require support from all layers, as for instance in, network protocols which must incorporate mechanisms to support multiple addresses. Multiple Care of Addresses Registration (MCoA)...
This paper proposes a new Internet architecture based on splitting Mechanism. It separates the Internet access networks from the core network, and makes the IPv6 routing both in access networks and the core network more scalable. Furthermore, this paper gives the mobility management protocol of the proposed Internet architecture which supports the host based and the network based mobility management...
In this paper, IP mobility management protocols have been analyzed and compared in terms of handover latency and packet loss during handover management. Numerical results show that FHMIPv6 outperforms other protocols in the case of packet loss and handoff latency. Effect of L2 triggering time, packet arrival rate and average queuing delay at access router on handoff latency and packet loss have been...
This The duration of a standard MIPv6 (Mobile IPv6)handover process is relatively long for many real-time sensitive applications. Many earlier proposed solutions of this problem aim on reducing the duration of the address registration and configuration processes during a handover. There are only few paper intended to shorten the DAD (Duplicate Address Detection) process in a MIPv6 handover. In this...
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