[show abstract][hide abstract] ABSTRACT: The on demand access, provided by Next Gener-ation Networks (NGN), will allow users of mobile devices to choose from and connect to networks with no pre-established service contract. Besides signal strength, knowledge about different parameters of the available networks shall base the selection of the attachment point to use. No mechanism currently available provides the desired integrated support for network discovery and on demand access. This paper presents MYHand, an architecture for providing extended information in NGN scenarios. By using the IEEE 802.21 protocol Basic Schema and part of the Y-Comm architecture, MYHand improves the handover managed by mobile devices (user-centric management). This paper also presents an extension to the IEEE 802.21 Basic Schema, which is used by MYHand for extra information exchange between mobile devices and heterogeneous networks.
The Ninth Advanced International Conference on Telecommunications, http://www.thinkmind.org/index.php?view=instance&instance=AICT+2013; 06/2013
[show abstract][hide abstract] ABSTRACT: An increasingly wireless world will mean that devices
with multiple network interfaces will soon become commonplace.
Users will expect to be always connected from anywhere
and at any time as connections will be switched to available
networks using handover techniques. However, different networks
have different Qualities-of-Service so a Quality-of-Service
Framework is needed to help applications and services deal
with this new environment. In addition, since these networks
must work together, future mobile systems will have an open,
instead of the currently closed, architecture. Therefore new
mechanisms will be needed to protect users, servers and network
infrastructure. This means that future mobile networks will
have to integrate communications, mobility, quality-of service
and security. This paper provides an overview of potential
architectures for communication in future networks. Our study
shows that only a number of these architectures support this
[show abstract][hide abstract] ABSTRACT: In order for next generation networks to support effective handover procedures, there is a need for defining QoS signaling mechanisms that guarantee the provision of point- to- point as well as network level QoS. This paper proposes a QoS signaling mechanism to be implemented by the Y-Comm architecture as a potential 4G framework. The proposed mechanism requires certain level of cooperation among network elements; therefore, it proposes some functional modules/ interfaces to be run on different network entities. As showed in the paper, the proposed mechanism could be implemented in different scenarios such as initial registration and connection, and also in the case of handover.
The 2011 International Conference of Wireless Networks. 01/2011;
[show abstract][hide abstract] ABSTRACT: The growth of the Mobile Internet is being fuelled by the development of heterogeneous devices which have several wireless interfaces. This brings new challenges which require a critical examination of current Internet Infrastructure with a view to providing better support for mobility, multi-homing and virtual networking. This paper considers a recently published solution to the multi-homing issue, and based on that proposes enhancements to support the core location and naming servers with the introduction of the Master Locator and the Enhanced DN
The IEEE Conference on Communication, Science & Information Engineering (CCSIE 2011), 25-27 July 2011. London-UK; 01/2011
[show abstract][hide abstract] ABSTRACT: The impact of contextual events for the performance of high bandwidth communication UAV link is the theme of this paper. Applications in this field have some strict quality requirements, and the communication link performance is essential for the mission success. Several events in the flight or in the surroundings can interfere with the data stream. We describe a context-controlled system which could dynamically adapt the flight in order to cope with eventualities during a mission. The main constraints of the link are discussed, and we analyze the link budget for the link considering directional receiving and transmitting antennas.
Telecommunications (AICT), 2010 Sixth Advanced International Conference on; 06/2010
[show abstract][hide abstract] ABSTRACT: The Next Generation Internet will provide ubiquitous
computing by the seamless operation of heterogeneous
wireless networks. It will also provide support for quality-ofservice,
QoS, fostering new classes of applications and will have
a built-in multi-level security environment. A key requirement
of this new infrastructure will be support for efficient vertical
handover. Y-Comm is a new architecture that will meet the
challenge of this new environment. This paper explores the design
of efficient imperative handover mechanisms using the Y-Comm
Framework. It first looks at different types of handovers, then
examines the Y-Comm Framework and shows how Y-Comm
maps unto current mobile infrastructure. It then explores support
for different handover mechanisms using Y-Comm. Finally, it
highlights the development of a new testbed to further investigate
the proposed mechanisms.
NBiS 2009, 12th International Conference on Network-Based Information Systems, Indianapolis, Indiana, USA, 19-21 August 2009; 01/2009
[show abstract][hide abstract] ABSTRACT: Users in ubiquitous and pervasive computing environments will be much more empowered in ways to access and to control their navigation. Handover, the vital event in which a user changes the attachment point in a next generation network (NGN), is an important occasion and the conditions and environment in which it is executed can offer relevant information for businesses. This paper describes the capabilities of a platform which intends to exploit contextual handover information offering a rich environment that can be used by access and content providers for building innovative context-aware multi-provided services. Based on ontologies, the technique not only eases the building of versatile services but also provides a comprehensive source of information both for enriching user navigation in the network as well as for the improvement of the provider's relationship with their customers.
Digital Information Management, 2007. ICDIM '07. 2nd International Conference on; 11/2007