Title :
Analysis of VoLTE End-to-End Quality of Service Using OPNET
Author :
Vizzarri, Alessandro
Author_Institution :
Dept. of Enterprise Eng., Univ. of Rome Tor Vergata, Rome, Italy
Abstract :
Long Term Evolution (LTE) is a 3GPP standard for wireless transmission systems. It is also the first 3GPP wireless standard full IP-based. Due to its possibility to reach very high throughput (e.g. 100 Mbps in downlink), an efficient end-to end QoS treatment is needed in order to guarantee a good QoS perceived by end user (QoE). Voice service delivered by LTE systems is Voice over IP (VoIP) service, with no QoS-aware mechanism. LTE provides a unique and native QoS-aware mechanism for end-to-end service delivering based on EPS bearer and QCI. Since efficient end-to-end QoS management of VOLTE should treat different aspects, this paper analyze the influence of voice codecs on end-to-end VoLTE performance. Different voice codecs are considered in different scenarios simulated using OPNET Modeler software tool. Final comparison among them is provided.
Keywords :
Internet telephony; Long Term Evolution; quality of service; 3GPP standard; LTE systems; OPNET modeler software tool; QoS aware mechanism; VoLTE end-to-end quality of service analysis; end-to end QoS treatment; end-to-end QoS management; end-to-end service; voice codecs; voice service; wireless transmission systems; Codecs; Delays; Downlink; GSM; IP networks; Long Term Evolution; Quality of service; LTE; LTE KPIs; LTE network performance; OPNET; VoIP; VoLTE; end-to-end QoS;
Conference_Titel :
Modelling Symposium (EMS), 2014 European
Print_ISBN :
978-1-4799-7411-5
DOI :
10.1109/EMS.2014.68
