VoIP Quality Monitoring in LTE Femtocells

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Title: VoIP Quality Monitoring in LTE Femtocells
Authors: Olariu, Cristian
Ó Foghlú, Mícheál
Perry, Philip
Murphy, Liam, B.E.
Permanent link: http://hdl.handle.net/10197/7519
Date: 27-May-2011
Abstract: The 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.
Funding Details: Science Foundation Ireland
Type of material: Conference Publication
Publisher: IEEE
Copyright (published version): 2011 IEEE
Keywords: VoIPMOSFemtocellLTENetwork management solution
DOI: 10.1109/INM.2011.5990552
Language: en
Status of Item: Not peer reviewed
Conference Details: 2011 IFIP/IEEE International Symposium on Integrated Network Management (IM), 23 - 27 May 2011
Appears in Collections:Computer Science Research Collection

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