Realization of Vertical Handover - Applicable for 4G Communications
24 Mar 2011-pp 1-4
TL;DR: In this article, the authors have realized vertical handover in four levels from basic fundamental level to final complex levels of vertical handoff and observed that acceptance; lock and track of particular spectrum and rejection of unwanted spectrum are achieved with this set up.
Abstract: The objective of this paper is to present a realization of vertical Handover which is applicable for 4G communication networks. The authors have realized vertical handover in four levels. Four different experiments have been conducted in the laboratory corresponding to four levels from basic fundamental level to final complex levels of vertical handover. It is observed that acceptance; lock and track of particular spectrum and rejection of unwanted spectrum are achieved with this set up. It leads to vertical handover in 4G communications.
Citations
More filters
Proceedings Article•
[...]
01 Jan 1998
TL;DR: Current and proposed protocols for mobility management for public land mobile network (PLMN)-based networks, mobile Internet protocol (IP) wireless asynchronous transfer mode (ATM) and satellite networks, and an outline of open problems to be addressed by the next generation of wireless network service are discussed.
Abstract: This paper describes current and proposed protocols for mobility management for public land mobile network (PLMN)-based networks, mobile Internet protocol (IP) wireless asynchronous transfer mode (ATM) and satellite networks. The integration of these networks will be discussed in the context of the next evolutionary step of wireless communication networks. First, a review is provided of location management algorithms for personal communication systems (PCS) implemented over a PLMN network. The latest protocol changes for location registration and handoff are investigated for mobile IP followed by a discussion of proposed protocols for wireless ATM and satellite networks. Finally, an outline of open problems to be addressed by the next generation of wireless network service is discussed.
25 citations
Book•
[...]
TL;DR: Two new energy detection (ED) Ultra-Wideband (UWB) systems are proposed in this dissertation and they are based on using two pulses, which are the different-order derivatives of the Gaussian pulse, to transmitted bit 0 or 1.
Abstract: Two new energy detection (ED) Ultra-Wideband (UWB) systems are proposed in this dissertation. The first one is an ED UWB system based on pulse width modulation (PWM). The bit error rate (BER) performance of this ED PWM system is slightly worse than ED pulse position modulation (PPM) system in additive white Gaussian noise (AWGN) channels. However, the BER performance of this ED PWM system surpasses that of a PPM system in multipath channels since a PWM system does not suffer cross-modulation interference (CMI) as a PPM system. In the presence of synchronization errors, the BER performance of a PWM system also surpasses that of a PPM system. The second proposed ED UWB system is based on using two pulses, which are the different-order derivatives of the Gaussian pulse, to transmitted bit 0 or 1. These pulses are appropriately chosen to separate their spectra in frequency domain. The receiver is composed of two energy detection branches and each branch has a filter which captures the signal energy of either bit 0 or 1. The outputs of two branches are subtracted from each other to generate the decision statistic and the value of this statistic is compared to a threshold to determine the transmitted bits. This system is named as Gaussian FSK (GFSK) system in this dissertation
8 citations
References
More filters
[...]
TL;DR: This document specifies Mobile IPv6, a protocol which allows nodes to remain reachable while moving around in the IPv6 Internet, and defines a new IPv6 protocol and a new destination option.
Abstract: This document specifies a protocol which allows nodes to remain
reachable while moving around in the IPv6 Internet. Each mobile node
is always identified by its home address, regardless of its current
point of attachment to the Internet. While situated away from its
home, a mobile node is also associated with a care-of address, which
provides information about the mobile node's current location. IPv6
packets addressed to a mobile node's home address are transparently
routed to its care-of address. The protocol enables IPv6 nodes to
cache the binding of a mobile node's home address with its care-of
address, and to then send any packets destined for the mobile node
directly to it at this care-of address. To support this operation,
Mobile IPv6 defines a new IPv6 protocol and a new destination option.
All IPv6 nodes, whether mobile or stationary can communicate with
mobile nodes.
1,470 citations
"Realization of Vertical Handover - ..." refers background in this paper
[...]
[...]
TL;DR: In this article, current and proposed protocols for mobility management for public land mobile network (PLMN)-based networks, mobile Internet protocol (IP) wireless asynchronous transfer mode (ATM) and satellite networks are discussed in the context of the next evolutionary step of wireless communication networks.
Abstract: This paper describes current and proposed protocols for mobility management for public land mobile network (PLMN)-based networks, mobile Internet protocol (IP) wireless asynchronous transfer mode (ATM) and satellite networks. The integration of these networks will be discussed in the context of the next evolutionary step of wireless communication networks. First, a review is provided of location management algorithms for personal communication systems (PCS) implemented over a PLMN network. The latest protocol changes for location registration and handoff are investigated for mobile IP followed by a discussion of proposed protocols for wireless ATM and satellite networks. Finally, an outline of open problems to be addressed by the next generation of wireless network service is discussed.
685 citations
[...]
TL;DR: This article presents a tutorial on the design and performance issues for vertical handoff in an envisioned multinetwork fourth-generation environment, including new techniques for dynamic handoff decision and detection algorithms and context-aware radio link transfer.
Abstract: Revolutionary drivers for 4G include a push toward universal wireless access and ubiquitous computing through seamless personal and terminal mobility. One of the major challenges for seamless mobility is the criterion of a vertical handoff protocol: a handoff protocol for users that move between different types of networks. Traditional operations for handoff detection policies, decision metrics, and radio link transfer are not able to adapt to dynamic handoff criteria or react to user inputs and changing network availabilities. Nor are they able to deliver context-aware services or ensure network interoperability. Thus, new techniques are needed to manage user mobility between different types of networks. This article presents a tutorial on the design and performance issues for vertical hand-off in an envisioned multinetwork fourth-generation environment. Various network architectures and technologies for 3G and beyond are described, including wireless LANs, cellular, satellite, and Mobile IP. Then the problem of vertical handoff is defined in the context of such a diverse network environment. Finally, research efforts to resolve the open problems are explored, including new techniques for dynamic handoff decision and detection algorithms and context-aware radio link transfer.
625 citations
"Realization of Vertical Handover - ..." refers background in this paper
[...]
Related Papers (5)
[...]
[...]
[...]