Sum rate maximization in the uplink of multi-cell OFDMA networks

Handle URI:
http://hdl.handle.net/10754/246792
Title:
Sum rate maximization in the uplink of multi-cell OFDMA networks
Authors:
Tabassum, Hina; Alouini, Mohamed-Slim ( 0000-0003-4827-1793 ) ; Dawy, Zaher
Abstract:
Resource allocation in orthogonal frequency division multiple access (OFDMA) networks plays an imperative role to guarantee the system performance. However, most of the known resource allocation schemes are focused on maximizing the local throughput of each cell, while ignoring the significant effect of inter-cell interference. This paper investigates the problem of resource allocation (i.e., subcarriers and powers) in the uplink of a multi-cell OFDMA network. The problem has a non-convex combinatorial structure and is known to be NP hard. Firstly, we investigate the upper and lower bounds to the average network throughput due to the inherent complexity of implementing the optimal solution. Later, a centralized sub-optimal resource allocation scheme is developed. We further develop less complex centralized and distributed schemes that are well-suited for practical scenarios. The computational complexity of all schemes has been analyzed and the performance is compared through numerical simulations. Simulation results demonstrate that the distributed scheme achieves comparable performance to the centralized resource allocation scheme in various scenarios. © 2011 IEEE.
KAUST Department:
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division; Communication Theory Lab
Citation:
Tabassum H, Dawy Z, Alouini MS (2011) Sum rate maximization in the uplink of multi-cell OFDMA networks. 2011 7th International Wireless Communications and Mobile Computing Conference. doi:10.1109/IWCMC.2011.5982703.
Publisher:
Institute of Electrical and Electronics Engineers (IEEE)
Journal:
2011 7th International Wireless Communications and Mobile Computing Conference
Conference/Event name:
7th International Wireless Communications and Mobile Computing Conference, IWCMC 2011
Issue Date:
3-Oct-2012
DOI:
10.1109/IWCMC.2011.5982703
Type:
Conference Paper
Additional Links:
http://ieeexplore.ieee.org/lpdocs/epic03/wrapper.htm?arnumber=5982703
Appears in Collections:
Conference Papers; Communication Theory Lab; Communication Theory Lab; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorTabassum, Hinaen
dc.contributor.authorAlouini, Mohamed-Slimen
dc.contributor.authorDawy, Zaheren
dc.date.accessioned2012-10-03T16:59:38Z-
dc.date.available2012-10-03T16:59:38Z-
dc.date.issued2012-10-03en
dc.identifier.citationTabassum H, Dawy Z, Alouini MS (2011) Sum rate maximization in the uplink of multi-cell OFDMA networks. 2011 7th International Wireless Communications and Mobile Computing Conference. doi:10.1109/IWCMC.2011.5982703.en
dc.identifier.doi10.1109/IWCMC.2011.5982703en
dc.identifier.urihttp://hdl.handle.net/10754/246792en
dc.description.abstractResource allocation in orthogonal frequency division multiple access (OFDMA) networks plays an imperative role to guarantee the system performance. However, most of the known resource allocation schemes are focused on maximizing the local throughput of each cell, while ignoring the significant effect of inter-cell interference. This paper investigates the problem of resource allocation (i.e., subcarriers and powers) in the uplink of a multi-cell OFDMA network. The problem has a non-convex combinatorial structure and is known to be NP hard. Firstly, we investigate the upper and lower bounds to the average network throughput due to the inherent complexity of implementing the optimal solution. Later, a centralized sub-optimal resource allocation scheme is developed. We further develop less complex centralized and distributed schemes that are well-suited for practical scenarios. The computational complexity of all schemes has been analyzed and the performance is compared through numerical simulations. Simulation results demonstrate that the distributed scheme achieves comparable performance to the centralized resource allocation scheme in various scenarios. © 2011 IEEE.en
dc.language.isoenen
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)en
dc.relation.urlhttp://ieeexplore.ieee.org/lpdocs/epic03/wrapper.htm?arnumber=5982703en
dc.titleSum rate maximization in the uplink of multi-cell OFDMA networksen
dc.typeConference Paperen
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Divisionen
dc.contributor.departmentCommunication Theory Laben
dc.identifier.journal2011 7th International Wireless Communications and Mobile Computing Conferenceen
dc.conference.date2011-07-04 to 2011-07-08en
dc.conference.name7th International Wireless Communications and Mobile Computing Conference, IWCMC 2011en
dc.conference.locationIstanbul, TURen
dc.eprint.versionPre-printen
dc.contributor.institutionDepartment of Electrical and Computer Engineering, American University of Beirut (AUB), Beirut, Lebanonen
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)en
kaust.authorTabassum, Hinaen
kaust.authorAlouini, Mohamed-Slimen
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