000131197 001__ 131197
000131197 005__ 20240206154529.0
000131197 0247_ $$2doi$$a10.1109/ACCESS.2021.3132427
000131197 0248_ $$2sideral$$a126926
000131197 037__ $$aART-2021-126926
000131197 041__ $$aeng
000131197 100__ $$0(orcid)0000-0001-9052-9554$$aOrtin Gracia, J.
000131197 245__ $$aOn Optimizing Network Function Placement for Multicast Group Call Service Provision in LTE IOPS Networks
000131197 260__ $$c2021
000131197 5060_ $$aAccess copy available to the general public$$fUnrestricted
000131197 5203_ $$aThe adoption of commercial wireless technologies such as 4G/5G in public safety networks allows for new broadband services that could not be offered in this type of networks. Nevertheless, public safety networks are mission-critical systems that require the introduction of specific services in commercial wireless networks before this adoption. For instance, public safety networks require push-to-talk group communications or the possibility of operating in isolated mode, named by 3GPP the Isolated E-UTRAN Operation for Public Safety (IOPS). These requirements pose specific challenges that must be addressed, such as the placement of a local Evolved Packet Core (EPC) when a set of evolved Node B (eNB) must work in IOPS mode. In this paper, we analyze the implications of push-to-talk group communications and multicast in the local EPC placement problem for IOPS networks and propose an optimization algorithm that finds the best eNB where the local EPC should be co-located. Given the complexity of the problem, we also propose a heuristic algorithm to determine the optimal placement of the local EPC. Simulation results show the ability of our approach to adapt to different types of traffic with heterogeneous spatial distributions. © 2013 IEEE.
000131197 536__ $$9info:eu-repo/grantAgreement/ES/DGA/T31-20R$$9info:eu-repo/grantAgreement/ES/MICINN/RTI2018-099063-B-100
000131197 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000131197 590__ $$a3.476$$b2021
000131197 591__ $$aCOMPUTER SCIENCE, INFORMATION SYSTEMS$$b79 / 163 = 0.485$$c2021$$dQ2$$eT2
000131197 591__ $$aTELECOMMUNICATIONS$$b43 / 92 = 0.467$$c2021$$dQ2$$eT2
000131197 591__ $$aENGINEERING, ELECTRICAL & ELECTRONIC$$b105 / 274 = 0.383$$c2021$$dQ2$$eT2
000131197 592__ $$a0.927$$b2021
000131197 593__ $$aEngineering (miscellaneous)$$c2021$$dQ1
000131197 593__ $$aComputer Science (miscellaneous)$$c2021$$dQ1
000131197 594__ $$a6.7$$b2021
000131197 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000131197 700__ $$0(orcid)0000-0002-8682-745X$$aGallego Martínez, J.$$uUniversidad de Zaragoza
000131197 700__ $$0(orcid)0000-0002-0299-0859$$aHernandez Solana A.$$uUniversidad de Zaragoza
000131197 700__ $$0(orcid)0000-0002-8298-4300$$aCanales M.$$uUniversidad de Zaragoza
000131197 7102_ $$15008$$2560$$aUniversidad de Zaragoza$$bDpto. Ingeniería Electrón.Com.$$cÁrea Ingeniería Telemática
000131197 773__ $$g9 (2021), 160897-160916$$pIEEE Access$$tIEEE Access$$x2169-3536
000131197 8564_ $$s4115157$$uhttps://zaguan.unizar.es/record/131197/files/texto_completo.pdf$$yVersión publicada
000131197 8564_ $$s2724364$$uhttps://zaguan.unizar.es/record/131197/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000131197 909CO $$ooai:zaguan.unizar.es:131197$$particulos$$pdriver
000131197 951__ $$a2024-02-06-14:48:54
000131197 980__ $$aARTICLE