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Centralized vs distributed resource allocation in multi cell OFDMA systems
dc.contributor.author | Cicalò, Sergio |
dc.contributor.author | Tralli, Velio |
dc.contributor.author | Pérez Neira, Ana Isabel |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions |
dc.date.accessioned | 2012-01-02T19:46:57Z |
dc.date.available | 2012-01-02T19:46:57Z |
dc.date.created | 2011 |
dc.date.issued | 2011 |
dc.identifier.citation | Cicalò, S.; Tralli, V.; Pérez, A. Centralized vs distributed resource allocation in multi cell OFDMA systems. A: IEEE Vehicular Technology Conference. "Vehicular Technology Conference (VTC Spring), 2011 IEEE 73rd". 2011, p. 1-6. |
dc.identifier.isbn | 978-1-4244-8332-7 |
dc.identifier.uri | http://hdl.handle.net/2117/14399 |
dc.description.abstract | Radio Resource Management with Inter-cell Interference Coordination (ICIC), is a key issue under investigation for next generation wireless systems such as Long Term Evolution (LTE). Although centralized resource allocation (RA) and collaborative processing can optimally perform ICIC, the overall required complexity suggests the consideration of distributed techniques. In this paper we propose and compare a centralized RA strategy aimed at maximizing the sum-rate of a multi-cell clustered system in presence of power and fairness constraints, and a distributed RA strategy where inter-cell interference is partially coordinated through power planning schemes with preassigned power (an example is fractional frequency reuse). The distributed RA strategy reduces both signaling and feedback requirements, preserves intra-cell fairness and jointly works with a load balancing algorithm to support inter-cell fairness. We show in the results that the distributed RA with aggressive frequency reuse is able to approach the performance of the centralized RA when the number of users is large, while preserving the same level of fairness. |
dc.format.extent | 6 p. |
dc.language.iso | eng |
dc.subject | Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Radiodifusió per ràdio |
dc.subject.lcsh | Approximation algorithms |
dc.title | Centralized vs distributed resource allocation in multi cell OFDMA systems |
dc.type | Conference report |
dc.subject.lemac | Algorismes per ordinador |
dc.subject.lemac | Optimització combinatòria |
dc.contributor.group | Universitat Politècnica de Catalunya. A&MP - Grup de Processament d'Arrays i Sistemes Multicanal |
dc.identifier.doi | 10.1109/VETECS.2011.5956553 |
dc.description.peerreviewed | Peer Reviewed |
dc.relation.publisherversion | http://ieeexplore.ieee.org/search/srchabstract.jsp?tp=&arnumber=5956553&openedRefinements%3D*%26filter%3DAND%28NOT%284283010803%29%29%26searchField%3DSearch+All%26queryText%3DCentralized+vs+distributed+resource+allocation+in+multi+cell+OFDMA+systems |
dc.rights.access | Restricted access - publisher's policy |
local.identifier.drac | 8600078 |
dc.description.version | Postprint (published version) |
dc.relation.projectid | info:eu-repo/grantAgreement/EC/FP7/214625/EU/OPTImisation of Multimedia over wireless Ip links via X-layer design/OPTIMIX |
local.citation.author | Cicalò, S.; Tralli, V.; Pérez, A. |
local.citation.contributor | IEEE Vehicular Technology Conference |
local.citation.publicationName | Vehicular Technology Conference (VTC Spring), 2011 IEEE 73rd |
local.citation.startingPage | 1 |
local.citation.endingPage | 6 |