Low-Complexity Interference-Free Downlink Channel Assignment with Improved Performance in Coordinated Small Cells

Handle URI:
http://hdl.handle.net/10754/577118
Title:
Low-Complexity Interference-Free Downlink Channel Assignment with Improved Performance in Coordinated Small Cells
Authors:
Radaydeh, Redha M.; Zafar, Ammar ( 0000-0001-8382-7625 ) ; Al-Qahtani, Fawaz S.; Alouini, Mohamed-Slim ( 0000-0003-4827-1793 )
Abstract:
This paper proposes a low-complexity interference-free channel assignment scheme with improved desired downlink performance in coordinated multi-antenna small-coverage access points (APs) that employ the open-access control strategy. The adopted system treats the case when each user can be granted an access to one of the available channels at a time. Moreover, each receive terminal can suppress a limited number of resolvable interfering sources via its highly-correlated receive array. On the other hand, the operation of the deployed APs can be coordinated to serve active users, and the availability of multiple physical channels and the use of uncorrelated transmit antennas at each AP are exploited to improve the performance of supported users. The analysis provides new approaches to use the transmit antenna array at each AP, the multiple physical channels, the receive antenna array at each user in order to identify interference-free channels per each user, and then to select a downlink channel that provides the best possible improved performance. The event of concurrent interference-free channel identification by different users is also treated to further improve the desired link associated with the scheduled user. The analysis considers the practical scenario of imperfect identification of interference-free channel by an active user and/or the imperfectness in scheduling concurrent users requests on the same channel. The developed formulations can be used to study any performance metric and they are applicable for any statistical and geometric channel models. © 2015 IEEE.
KAUST Department:
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division; Electrical Engineering Program
Publisher:
Institute of Electrical and Electronics Engineers (IEEE)
Journal:
2015 IEEE 81st Vehicular Technology Conference (VTC Spring)
Conference/Event name:
81st IEEE Vehicular Technology Conference, VTC Spring 2015
Issue Date:
May-2015
DOI:
10.1109/VTCSpring.2015.7145922
Type:
Conference Paper
Appears in Collections:
Conference Papers; Electrical Engineering Program; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorRadaydeh, Redha M.en
dc.contributor.authorZafar, Ammaren
dc.contributor.authorAl-Qahtani, Fawaz S.en
dc.contributor.authorAlouini, Mohamed-Slimen
dc.date.accessioned2015-09-10T14:19:00Zen
dc.date.available2015-09-10T14:19:00Zen
dc.date.issued2015-05en
dc.identifier.doi10.1109/VTCSpring.2015.7145922en
dc.identifier.urihttp://hdl.handle.net/10754/577118en
dc.description.abstractThis paper proposes a low-complexity interference-free channel assignment scheme with improved desired downlink performance in coordinated multi-antenna small-coverage access points (APs) that employ the open-access control strategy. The adopted system treats the case when each user can be granted an access to one of the available channels at a time. Moreover, each receive terminal can suppress a limited number of resolvable interfering sources via its highly-correlated receive array. On the other hand, the operation of the deployed APs can be coordinated to serve active users, and the availability of multiple physical channels and the use of uncorrelated transmit antennas at each AP are exploited to improve the performance of supported users. The analysis provides new approaches to use the transmit antenna array at each AP, the multiple physical channels, the receive antenna array at each user in order to identify interference-free channels per each user, and then to select a downlink channel that provides the best possible improved performance. The event of concurrent interference-free channel identification by different users is also treated to further improve the desired link associated with the scheduled user. The analysis considers the practical scenario of imperfect identification of interference-free channel by an active user and/or the imperfectness in scheduling concurrent users requests on the same channel. The developed formulations can be used to study any performance metric and they are applicable for any statistical and geometric channel models. © 2015 IEEE.en
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)en
dc.titleLow-Complexity Interference-Free Downlink Channel Assignment with Improved Performance in Coordinated Small Cellsen
dc.typeConference Paperen
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Divisionen
dc.contributor.departmentElectrical Engineering Programen
dc.identifier.journal2015 IEEE 81st Vehicular Technology Conference (VTC Spring)en
dc.conference.date11 May 2015 through 14 May 2015en
dc.conference.name81st IEEE Vehicular Technology Conference, VTC Spring 2015en
dc.contributor.institutionDepartment of Electrical Engineering, Alfaisal University Riyadh 11533, Riyadh, Saudi Arabiaen
dc.contributor.institutionElectrical & Computer Engineering Programen
kaust.authorZafar, Ammaren
kaust.authorAlouini, Mohamed-Slimen
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