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Keywords
(7)
Heterogeneous Systems
Hybrid System
Mobile Network
Profitability
Quality of Service
Vertical Handoff
Next Generation
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(1)
QoS provisioning in wireless networks
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Challenges for Quality of Service in Next Generation Mobile Networks
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Challenges for Quality of Service in Next Generation Mobile Networks
(
Citations: 8
)
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Adrian Duda
,
Cormac J. Sreenan
Next generation
mobile networks, commonly referred to as 4G, are envisaged as a multitude of
heterogeneous systems
interacting through a horizontal IP-centric architecture. This paper presents an overview of the issues arising in such hybrid systems and international research work, with particular emphasis on
quality of service
(QoS) and vertical handoff. An outline of our research is presented, that is, optimising the handover process in proportion to both delay and throughput, by measuring QoS parameters and link characteristics at appropriate places in the networks, and drawing out decisions upon the profitability/necessity of a vertical handoff.
Published in 2010.
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Citation Context
(4)
...networks is a very challenging topic due to their dynamic nature [1,
2
]...
Jian Li
,
et al.
Adaptive per hop differentiation for end-to-end delay assurance in mul...
...These parameters have relative weights associated to a cost function of relative scale [14][
15
] which are set up by the user trough an administrative GUI...
...Additional elements like dwell-timer and hysteresis [14][
15
] are used for avoiding situations such as ping-pong effects in network connections, meaning that there could be oscillations and instability in the networks...
...The addition of the user mobility parameter to the cost function was done considering its importance for QoS [
15
], since this is dependent on the network coverage area, and which is also conditioned by the user mobility...
Andrés Navarro Cadavid
,
et al.
Handset based automatic network re-selection system for GSM/GPRS and W...
...It looks at how QoS may be defined and the mechanisms used to establish and maintain QoS at different points in the system [
DS03
]...
Glenford E. Mapp
,
et al.
Y-Comm: a global architecture for heterogeneous networking
...Another view of this integration is the interconnection of heterogeneous networks through a core IP network [
7
]...
...The integration level of the WLAN into the 3G networks have been deeply studied in [
7
][8], where both a tight coupling architecture and a loosly coupled architecture were proposed [9]...
Nicolas Montavont
,
et al.
Link Triggers Assisted Optimizations for Mobile IPv4/v6 Vertical Hando...
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