Impact of the codec and various QoS methods on the final quality of the transferred voice in an IP network

Slavata, Oldrich; Holub, Jan

doi:10.1088/1742-6596/588/1/012011

Cited by 3 publications

(3 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This paper did not give a precursor in the next generation network (NGN) before its conclusion and was only mentioned in vaguely. [5] researched the effect of the codec and QoS technique used on speech transmission quality in IP networks. Ten samples were measured for the various methods of controlling and preventing congestion.…”

Section: Iireview Of Related Workmentioning

confidence: 99%

“…In this job, the techniques were not addressed only the outcomes were shown graphically. [4][5] The objective of carrying out this research was to evaluate the voice quality in Long Tern Evolution (LTE) through the use of various codec mode set. This study has shown that all mode sets worked in the same manner under distinct circumstances of track loss.…”

Section: Iireview Of Related Workmentioning

confidence: 99%

See 1 more Smart Citation

A Virtual Switching Model for Improvement of Call Quality in Integrated Communication System

Amanze¹,

Okolie²,

S.O.³

et al. 2020

IJSCE

View full text Add to dashboard Cite

Poor voice quality in VoIP models during communication has been a common occurrence which VoIP users experience, this can be frustrating when users cannot communicate efficiently. Most people find it difficult to think straight when they make calls and there is an echo. In addition to this frustration, the caller’s money, time, effort, energy is all wasted without compensation of any kind. Users are also frustrated by not receiving, transmitting or misunderstanding voice messages correctly. Given the need for voice quality in calls, it is of no importance when there is no proper communication. This study aims to reduce the threat of bad calls and improve the quality of voice calls. Nonetheless, we need to raise the filter duration to a high value in some real telecom’s environments with long echo delays. But, because of high computational complexity, it is not efficient in efficiency. In this study, we suggest a solution that uses a computational formula to compensate long echo, delay, packet loss, jitter and noise. The model designed was developed using MATLAB 2019b. This approach demonstrated productivity in terms of both voice quality and system speed.

show abstract

Section: Iireview Of Related Workmentioning

confidence: 99%

Section: Iireview Of Related Workmentioning

confidence: 99%

A Virtual Switching Model for Improvement of Call Quality in Integrated Communication System

Amanze¹,

Okolie²,

S.O.³

et al. 2020

IJSCE

View full text Add to dashboard Cite

show abstract

“…O Slavata and J. Holub stated that QoS for LANs can be assessed through software-and hardware-based approaches [8]. QoS can be applied to monitor network traffic and convergence using various techniques.…”

Section: Introductionmentioning

confidence: 99%

Quality of Service (QoS) Management for Local Area Network (LAN) Using Traffic Policy Technique to Secure Congestion

et al. 2020

View full text Add to dashboard Cite

This study presents the proposed testbed implementation for the Advanced Technology Training Center (ADTEC) Batu Pahat, one of Malaysia’s industrial training institutes. The objectives of this study are to discover the issues regarding network congestion, propose a suitable method to overcome such issues, and generate output data for the comparison of the results before and after the proposed implementation. The internet is directly connected to internet service providers (ISPs), which neither impose any rule nor filter the traffic components; all connections comply on the basis of the base effort services provided by the ISP. The congestion problem has been raised several times and the information technology (IT) department has been receiving complaints about poor and sometimes intermittent internet connection. Such issues provide some ideas for a possible solution because the end client is a human resource core business. In addition, budget constraints contribute to this problem. After a comprehensive review of related literature and discussion with experts, the implementation of quality of service through add-on rules, such as traffic policing on network traffic, was proposed. The proposed testbed also classified the traffic. Results show that the proposed testbed is stable. After the implementation of the generated solution, the IT department no longer receives any complaints, and thus fulfills the goal of having zero internet connection issues.

show abstract

QoE Measurements and Analysis for VoIP Services

Sánchez-Iborra

Cano

Moreno-Urrea

et al. 2016

Advances in Multimedia and Interactive Technologies

View full text Add to dashboard Cite

Quality of Service (QoS) and Quality of Experience (QoE) are two different approaches that evaluate the quality level of a given service. In general, QoS models analyze objective network parameters, while QoE techniques focus on what the user actually perceives when consuming the service (subjective perspective). In this chapter, it is presented a comparative study of two voice codecs employed by two well-known VoIP applications, namely Skype and Jitsi, analyzing the provided quality from two perspectives: objective and subjective evaluations. To this end, several network metrics have been taken into account; in addition, the participants in this study completed different quality surveys in order to obtain their opinion about the evaluated services. Concretely, 60 quality tests with 60 subjects have been performed in a controlled wired scenario. The obtained results suggest a clear relationship between QoS and QoE. This chapter aims to present a detailed description about the process to perform comparative quality evaluations of multimedia services from both QoS and QoE perspectives.

show abstract

Impact of the codec and various QoS methods on the final quality of the transferred voice in an IP network

Cited by 3 publications

References 3 publications

A Virtual Switching Model for Improvement of Call Quality in Integrated Communication System

A Virtual Switching Model for Improvement of Call Quality in Integrated Communication System

Quality of Service (QoS) Management for Local Area Network (LAN) Using Traffic Policy Technique to Secure Congestion

QoE Measurements and Analysis for VoIP Services

Contact Info

Product

Resources

About