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Prioritization Procedures for Resource Management in Cellular Networks

Zander, Roland LU (2005)
Abstract
In order to be competitive, it is crucial for cellular operators to use their resources, such as spectrum and equipment, as effectively as possible. A more efficient usage of the available resources enables the operators to reduce the necessary deployment cost and/or to improve the offered Quality of Service in their



networks. The concept of resource management includes among other things admission control procedures and channel assignment methods.



To satisfy the subscriber requirements in a cellular network, a higher priority needs to be assigned to certain connection (call) types. For instance, most subscribers find it much more annoying to have an ongoing connection dropped than a new call attempt... (More)
In order to be competitive, it is crucial for cellular operators to use their resources, such as spectrum and equipment, as effectively as possible. A more efficient usage of the available resources enables the operators to reduce the necessary deployment cost and/or to improve the offered Quality of Service in their



networks. The concept of resource management includes among other things admission control procedures and channel assignment methods.



To satisfy the subscriber requirements in a cellular network, a higher priority needs to be assigned to certain connection (call) types. For instance, most subscribers find it much more annoying to have an ongoing connection dropped than a new call attempt blocked. This means that it is a good idea for the operators to assign a higher priority to already ongoing connections than to new call attempts. Further, a higher priority can be assigned to calls carrying certain services as well as to users with more expensive subscriptions. There exist several different methods that can be applied for the prioritization procedure. These include bandwidth reservation, bandwidth borrowing, handover queuing, handover parameter adjustments and dynamic bandwidth allocation.



In this thesis, several advanced prioritization procedures intended for cellular networks are introduced. These methods enhance the network performance through reduced call blocking and/or handover dropping probabilities. The introduced methods



include a bandwidth reservation scheme that estimates the handover arrival rate to each cell using advanced subscriber movement predictions. A combination of history-based measurements and positioning is used as input to the movement prediction feature. Another introduced prioritization procedure combines bandwidth borrowing with bandwidth reservation. Here, the rate adaptiveness of the ongoing connections in a cell is together with the estimated handover arrival rate applied to determine the amount of bandwidth to reserve. Further, a bandwidth reservation procedure that considers the soft property of CDMA networks is also introduced. Moreover, layer assignment schemes suitable for hierarchical cellular structures, and load balancing procedures are presented. (Less)
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author
supervisor
opponent
  • Schiller, Jochen, Freie Universität Berlin
organization
publishing date
type
Thesis
publication status
published
subject
keywords
Telekommunikationsteknik, Telecommunication engineering, admission control, resource management, cellular networks, prioritization procedures
pages
181 pages
publisher
Department of Communication Systems, Lund University
defense location
Room E:1406, E-building, Ole Römers Väg 3, Lund Institute of Technology.
defense date
2005-12-01 13:15
external identifiers
  • other:ISRN:LUTEDX/TETS-1076-SE+181P
ISSN
1101-3931
language
English
LU publication?
yes
id
2966b521-9a9d-421a-abba-12738e0b7387 (old id 545661)
date added to LUP
2007-09-10 16:08:40
date last changed
2016-09-19 08:44:59
@phdthesis{2966b521-9a9d-421a-abba-12738e0b7387,
  abstract     = {In order to be competitive, it is crucial for cellular operators to use their resources, such as spectrum and equipment, as effectively as possible. A more efficient usage of the available resources enables the operators to reduce the necessary deployment cost and/or to improve the offered Quality of Service in their<br/><br>
<br/><br>
networks. The concept of resource management includes among other things admission control procedures and channel assignment methods.<br/><br>
<br/><br>
To satisfy the subscriber requirements in a cellular network, a higher priority needs to be assigned to certain connection (call) types. For instance, most subscribers find it much more annoying to have an ongoing connection dropped than a new call attempt blocked. This means that it is a good idea for the operators to assign a higher priority to already ongoing connections than to new call attempts. Further, a higher priority can be assigned to calls carrying certain services as well as to users with more expensive subscriptions. There exist several different methods that can be applied for the prioritization procedure. These include bandwidth reservation, bandwidth borrowing, handover queuing, handover parameter adjustments and dynamic bandwidth allocation.<br/><br>
<br/><br>
In this thesis, several advanced prioritization procedures intended for cellular networks are introduced. These methods enhance the network performance through reduced call blocking and/or handover dropping probabilities. The introduced methods<br/><br>
<br/><br>
include a bandwidth reservation scheme that estimates the handover arrival rate to each cell using advanced subscriber movement predictions. A combination of history-based measurements and positioning is used as input to the movement prediction feature. Another introduced prioritization procedure combines bandwidth borrowing with bandwidth reservation. Here, the rate adaptiveness of the ongoing connections in a cell is together with the estimated handover arrival rate applied to determine the amount of bandwidth to reserve. Further, a bandwidth reservation procedure that considers the soft property of CDMA networks is also introduced. Moreover, layer assignment schemes suitable for hierarchical cellular structures, and load balancing procedures are presented.},
  author       = {Zander, Roland},
  issn         = {1101-3931},
  keyword      = {Telekommunikationsteknik,Telecommunication engineering,admission control,resource management,cellular networks,prioritization procedures},
  language     = {eng},
  pages        = {181},
  publisher    = {Department of Communication Systems, Lund University},
  school       = {Lund University},
  title        = {Prioritization Procedures for Resource Management in Cellular Networks},
  year         = {2005},
}