Joint Dynamic Radio Resource Allocation and Mobility Load Balancing in 3GPP LTE Multi-Cell Network

dc.contributor.authorLi, Feng
dc.contributor.authorGeng, Lina
dc.contributor.authorZhu, Shihua
dc.coverage.issue1cs
dc.coverage.volume24cs
dc.date.accessioned2015-05-21T12:36:02Z
dc.date.available2015-05-21T12:36:02Z
dc.date.issued2015-04cs
dc.description.abstractLoad imbalance, together with inefficient utilization of system resource, constitute major factors responsible for poor overall performance in Long Term Evolution (LTE) network. In this paper, a novel scheme of joint dynamic resource allocation and load balancing is proposed to achieve a balanced performance improvement in 3rd Generation Partnership Project (3GPP) LTE Self-Organizing Networks (SON). The new method which aims at maximizing network resource efficiency subject to inter-cell interference and intra-cell resource constraints is implemented in two steps. In the first step, an efficient resource allocation, including user scheduling and power assignment, is conducted in a distributed manner to serve as many users in the whole network as possible. In the second step, based on the resource allocation scheme, the optimization objective namely network resource efficiency can be calculated and load balancing is implemented by switching the user that can maximize the objective function. Lagrange Multipliers method and heuristic algorithm are used to resolve the formulated optimization problem. Simulation results show that our algorithm achieves better performance in terms of user throughput, fairness, load balancing index and unsatisfied user number compared with the traditional approach which takes resource allocation and load balancing into account, respectively.en
dc.formattextcs
dc.format.extent288-295cs
dc.format.mimetypeapplication/pdfen
dc.identifier.citationRadioengineering. 2015 vol. 24, č. 1, s. 288-295. ISSN 1210-2512cs
dc.identifier.doi10.13164/re.2015.0288en
dc.identifier.issn1210-2512
dc.identifier.urihttp://hdl.handle.net/11012/38764
dc.language.isoencs
dc.publisherSpolečnost pro radioelektronické inženýrstvícs
dc.relation.ispartofRadioengineeringcs
dc.relation.urihttp://www.radioeng.cz/fulltexts/2015/15_01_0288_0295.pdfcs
dc.rightsCreative Commons Attribution 3.0 Unported Licenseen
dc.rights.accessopenAccessen
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/en
dc.subjectLoad balancingen
dc.subjectresource allocationen
dc.subjectLTE SONen
dc.subjectefficiency and fairnessen
dc.titleJoint Dynamic Radio Resource Allocation and Mobility Load Balancing in 3GPP LTE Multi-Cell Networken
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
eprints.affiliatedInstitution.facultyFakulta eletrotechniky a komunikačních technologiícs
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