814 research outputs found
A Survey on Handover Management in Mobility Architectures
This work presents a comprehensive and structured taxonomy of available
techniques for managing the handover process in mobility architectures.
Representative works from the existing literature have been divided into
appropriate categories, based on their ability to support horizontal handovers,
vertical handovers and multihoming. We describe approaches designed to work on
the current Internet (i.e. IPv4-based networks), as well as those that have
been devised for the "future" Internet (e.g. IPv6-based networks and
extensions). Quantitative measures and qualitative indicators are also
presented and used to evaluate and compare the examined approaches. This
critical review provides some valuable guidelines and suggestions for designing
and developing mobility architectures, including some practical expedients
(e.g. those required in the current Internet environment), aimed to cope with
the presence of NAT/firewalls and to provide support to legacy systems and
several communication protocols working at the application layer
ISO/EPC Addressing Methods to Support Supply Chain in the Internet of Things
RFID systems are among the major infrastructures of the Internet of Things,
which follow ISO and EPC standards. In addition, ISO standard constitutes the
main layers of supply chain, and many RFID systems benefit from ISO standard
for different purposes. In this paper, we tried to introduce addressing systems
based on ISO standards, through which the range of things connected to the
Internet of Things will grow. Our proposed methods are addressing methods which
can be applied to both ISO and EPC standards. The proposed methods are simple,
hierarchical, and low cost implementation. In addition, the presented methods
enhance interoperability among RFIDs, and also enjoys a high scalability, since
it well covers all of EPC schemes and ISO supply chain standards. Further, by
benefiting from a new algorithm for long EPCs known as selection algorithm,
they can significantly facilitate and accelerate the operation of address
mapping.Comment: arXiv admin note: text overlap with arXiv:1807.0217
Mobile IP: state of the art report
Due to roaming, a mobile device may change its network attachment each time it moves to a new link. This might cause a disruption for the Internet data packets that have to reach the mobile node. Mobile IP is a protocol, developed by the Mobile IP Internet Engineering Task Force (IETF) working group, that is able to inform the network about this change in network attachment such that the Internet data packets will be delivered in a seamless way to the new point of attachment. This document presents current developments and research activities in the Mobile IP area
A survey on subjecting electronic product code and non-ID objects to IP identification
Over the last decade, both research on the Internet of Things (IoT) and
real-world IoT applications have grown exponentially. The IoT provides us with
smarter cities, intelligent homes, and generally more comfortable lives.
However, the introduction of these devices has led to several new challenges
that must be addressed. One of the critical challenges facing interacting with
IoT devices is to address billions of devices (things) around the world,
including computers, tablets, smartphones, wearable devices, sensors, and
embedded computers, and so on. This article provides a survey on subjecting
Electronic Product Code and non-ID objects to IP identification for IoT
devices, including their advantages and disadvantages thereof. Different
metrics are here proposed and used for evaluating these methods. In particular,
the main methods are evaluated in terms of their: (i) computational overhead,
(ii) scalability, (iii) adaptability, (iv) implementation cost, and (v) whether
applicable to already ID-based objects and presented in tabular format.
Finally, the article proves that this field of research will still be ongoing,
but any new technique must favorably offer the mentioned five evaluative
parameters.Comment: 112 references, 8 figures, 6 tables, Journal of Engineering Reports,
Wiley, 2020 (Open Access
Network-based localized IP mobility management: Proxy Mobile IPv6 and current trends in standardization
IP mobility support has been a hot topic over the last years, recently fostered by the role of IP in the evolution of the 3G mobile communication networks. Standardization bodies, namely IETF, IEEE and 3GPP are working on different aspects of the mobility aiming at improving the mobility experience perceived by users. Traditional IP mobility support mechanisms, Mobile IPv4 or Mobile IPv6, are based on the operation of the terminal to keep ongoing sessions despite the movement. The current trend is towards network-based solutions where mobility support is based on network operation. Proxy Mobile IPv6 is a promising specification that allows network operators to provide localized mobility support without relying on mobility functionality or configuration present in the mobile nodes, which greatly eases the deployment of the solution. This paper presents Proxy Mobile IPv6 and the different extensions that are been considered by the standardization bodies to enhance the basic protocol with interesting features needed to offer a richer mobility experience, namely, flow mobility, multicast and network mobility support.European Community's Seventh Framework ProgramThe research leading to the results presented in this paper has received funding from the Spanish MICINN
through the I-MOVING project (TEC2010-18907) and from the European Communityâs Seventh Framework
Programme (FP7/2007-2013) under grant agreement 258053 (MEDIEVAL project).Publicad
Temporal and Spatial Classification of Active IPv6 Addresses
There is striking volume of World-Wide Web activity on IPv6 today. In early
2015, one large Content Distribution Network handles 50 billion IPv6 requests
per day from hundreds of millions of IPv6 client addresses; billions of unique
client addresses are observed per month. Address counts, however, obscure the
number of hosts with IPv6 connectivity to the global Internet. There are
numerous address assignment and subnetting options in use; privacy addresses
and dynamic subnet pools significantly inflate the number of active IPv6
addresses. As the IPv6 address space is vast, it is infeasible to
comprehensively probe every possible unicast IPv6 address. Thus, to survey the
characteristics of IPv6 addressing, we perform a year-long passive measurement
study, analyzing the IPv6 addresses gleaned from activity logs for all clients
accessing a global CDN.
The goal of our work is to develop flexible classification and measurement
methods for IPv6, motivated by the fact that its addresses are not merely more
numerous; they are different in kind. We introduce the notion of classifying
addresses and prefixes in two ways: (1) temporally, according to their
instances of activity to discern which addresses can be considered stable; (2)
spatially, according to the density or sparsity of aggregates in which active
addresses reside. We present measurement and classification results numerically
and visually that: provide details on IPv6 address use and structure in global
operation across the past year; establish the efficacy of our classification
methods; and demonstrate that such classification can clarify dimensions of the
Internet that otherwise appear quite blurred by current IPv6 addressing
practices
An ILNP-based solution for future heterogeneous wireless networks
Utilization of the different wireless interfaces (Cellular, Wi-Fi and WiMAX) that come with many of the Mobile Nodes today is central to improving Quality of Experience and Quality of Service in future networks. Although the interfaces are of different technologies as are the access links, the core/backbone networks are now based on IP infrastructure. Efforts to simplify network handover between these technologies â termed vertical handover (VHO) â have not been successful with IP due its mechanism for managing nodesâ identity and location. Researchers have defined and implemented some solutions that proposed the separation of identity of a Mobile Node from its location, and among those proposals is the Identifier Locator Network Protocol (ILNP). In this work, we propose a Linux-based implementation of the ILNPv6 protocol â an instance of the ILNP that is compatible with IPv6 â on laboratory testbed. We also proposed an Information Server managing a defined geographical location we called AREA, to augment some of the shortfalls that we observed with ILNP. We believe that this combination provides the necessary ground for achieving seamless VHO in heterogeneous wireless environments of the future
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