Olariu, CristianCristianOlariuÓ Foghlú, MícheálMícheálÓ FoghlúPerry, PhilipPhilipPerryMurphy, Liam, B.E.Liam, B.E.Murphy2016-02-172016-02-172011 IEEE2011-05-27http://hdl.handle.net/10197/75192011 IFIP/IEEE International Symposium on Integrated Network Management (IM), 23 - 27 May 2011The increasing number of users demanding voice and data communication through cellular networks has driven the need for higher network throughput rates and lower latency. LTE femtocells address this pressing problem by offloading cellular service providers networks and increase both coverage and capacity for their users. Assuming a wired DSL backhaul for these femtocells, this paper shows simulations exploring a case where the DSLAM represents the main bottleneck when the cellular network operator and the DSL provider do not collaborate. This paper introduces the concept of Intermediary Mean Opinion Score which may be employed at femtocell gateways to isolate network problems and feed into customer experience management. We also propose and investigate a technique of mapping the human audio recency into the MOS calculation. Results are presented to illustrate the information that can be extracted from a lightweight monitor in the network.en© © 2011 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.VoIPMOSFemtocellLTENetwork management solutionConference Publication50150810.1109/INM.2011.59905522016-02-02https://creativecommons.org/licenses/by-nc-nd/3.0/ie/