2.50
Hdl Handle:
http://hdl.handle.net/10547/336956
Title:
Dynamic user equipment-based hysteresis-adjusting algorithm in LTE femtocell networks
Authors:
Xiao, Zhu; Zhang, Xu; Maple, Carsten; Allen, Ben; Liu, Enjie; Mahato, Shyam Babu
Abstract:
In long-term evolution (LTE) femtocell networks, hysteresis is one of the main parameters which affects the performance of handover with a number of unnecessary handovers, including ping-pong, early, late and incorrect handovers. In this study, the authors propose a hybrid algorithm that aims to obtain the optimised unique hysteresis for an individual mobile user moving at various speeds during the inbound handover process. This algorithm is proposed for two-tier scenarios with macro and femto. The centralised function in this study evaluates the overall handover performance indicator. Then, the handover aggregate performance indicator (HAPI) is used to determine an optimal configuration. Based on the received reference signal-to-interference-plus-noise ratio, the distributed function residing on the user equipment (UE) is able to obtain an optimal unique hysteresis for the individual UE. Theoretical analysis with three indication boundaries is provided to evaluate the proposed algorithm. A system-level simulation is presented, and the proposed algorithm outperformed the existing approaches in terms of handover failure, call-drop and redundancy handover ratios and also achieved better overall system performance.
Affiliation:
University of Bedfordshire; Southeast University, Nanjing; Hunan University, Chang sha; University of Warwick
Citation:
Zhang, X., Xiao, Z., Mahato, S., Liu, E., Allen, B., Maple, C., (2014) 'Dynamic user equipment-based hysteresis-adjusting algorithm in LTE femtocell networks'. IET Communications, 8 (17) pp 1-11
Publisher:
IEEE
Journal:
IET Communications
Issue Date:
Sep-2014
URI:
http://hdl.handle.net/10547/336956
DOI:
10.1049/iet-com.2014.0277
Additional Links:
http://digital-library.theiet.org/content/journals/10.1049/iet-com.2014.0277
Type:
Article
Language:
en
ISSN:
1751-8628; 1751-8636
Appears in Collections:
Centre for Computer Graphics and Visualisation (CCGV)

Full metadata record

DC FieldValue Language
dc.contributor.authorXiao, Zhuen
dc.contributor.authorZhang, Xuen
dc.contributor.authorMaple, Carstenen
dc.contributor.authorAllen, Benen
dc.contributor.authorLiu, Enjieen
dc.contributor.authorMahato, Shyam Babuen
dc.date.accessioned2014-12-09T12:58:34Z-
dc.date.available2014-12-09T12:58:34Z-
dc.date.issued2014-09-
dc.identifier.citationZhang, X., Xiao, Z., Mahato, S., Liu, E., Allen, B., Maple, C., (2014) 'Dynamic user equipment-based hysteresis-adjusting algorithm in LTE femtocell networks'. IET Communications, 8 (17) pp 1-11en
dc.identifier.issn1751-8628-
dc.identifier.issn1751-8636-
dc.identifier.doi10.1049/iet-com.2014.0277-
dc.identifier.urihttp://hdl.handle.net/10547/336956-
dc.description.abstractIn long-term evolution (LTE) femtocell networks, hysteresis is one of the main parameters which affects the performance of handover with a number of unnecessary handovers, including ping-pong, early, late and incorrect handovers. In this study, the authors propose a hybrid algorithm that aims to obtain the optimised unique hysteresis for an individual mobile user moving at various speeds during the inbound handover process. This algorithm is proposed for two-tier scenarios with macro and femto. The centralised function in this study evaluates the overall handover performance indicator. Then, the handover aggregate performance indicator (HAPI) is used to determine an optimal configuration. Based on the received reference signal-to-interference-plus-noise ratio, the distributed function residing on the user equipment (UE) is able to obtain an optimal unique hysteresis for the individual UE. Theoretical analysis with three indication boundaries is provided to evaluate the proposed algorithm. A system-level simulation is presented, and the proposed algorithm outperformed the existing approaches in terms of handover failure, call-drop and redundancy handover ratios and also achieved better overall system performance.en
dc.language.isoenen
dc.publisherIEEEen
dc.relation.urlhttp://digital-library.theiet.org/content/journals/10.1049/iet-com.2014.0277en
dc.rightsArchived with thanks to IET Communicationsen
dc.subjectLong Term Evolutionen
dc.subjectfemtocellular radioen
dc.subjecthysteresisen
dc.subjectmobility management (mobile radio)en
dc.subjectfemtocellsen
dc.titleDynamic user equipment-based hysteresis-adjusting algorithm in LTE femtocell networksen
dc.typeArticleen
dc.contributor.departmentUniversity of Bedfordshireen
dc.contributor.departmentSoutheast University, Nanjingen
dc.contributor.departmentHunan University, Chang shaen
dc.contributor.departmentUniversity of Warwicken
dc.identifier.journalIET Communicationsen
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