Role of codec selection on the performance of IPsec secured VoIP

Antwi-Boasiako, Emmanuel; Kuada, Eric; Boakye-Boateng, Kwasi

doi:10.1109/icacci.2016.7732434

Cited by 2 publications

(2 citation statements)

References 10 publications

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“…The G.723.1 codec has proved to be usable for IPsec implementations on GRE with IPsec. This study agrees with [49] that regardless of IPsec, the codec of choice influences the voice communication quality output over the IP network. Low bandwidth codec such as G.723.1 and G.729.3 are better choices for IPsec enabled VoIP implementations.…”

Section: Discussionsupporting

confidence: 90%

VoIP Codec Performance Evaluation on GRE with IPsec over IPv4 and IPv6

Alausa¹,

Arekete²,

Odim³

et al. 2021

Adv. sci. technol. eng. syst. j.

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Scientists succeeded in implementing conventional public switch telephone network (PSTN) into internet protocol by launching H.323 IP telephony. The irrelevant and unknown captions in H.323, computer scientists have replaced H.323 by Session Initiation Protocol (SIP) for Voice-over-IP (VoIP). However, the security of voice communication over IP is still a major concern. Besides, security and performance contradict features. VoIP exhibits a quality-of-service requirements that are sensitive to time. Example of such QoS requirements are delay, jitter, and packet loss. Integrating Internet Protocol Security (IPsec) with Generic Routing Encapsulation (GRE) encrypts and authenticate packets from the sender to receiver, but that raises the question of performance as VoIP is time sensitive. Consequently, three codecs were evaluated to determine the efficiency of each on GRE and IPsec implementation on Internet Protocol version 4 and Internet Protocol version 6 (IPv4 and IPv6), respectively. The topology design and device configuration in this study adopted Graphic Network Simulator 3 (GNS3) and Distributed Internet Traffic Generator (D-ITG) to generate VoIP traffic. The evaluation revealed that the G.723.1 codec achieved better results on IPv4 and IPv6 over GRE with IPsec than other codecs used in the experiment. Furthermore, the codec of choice is a major factor in IPsec VoIP deployment, as also revealed in this study.

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Section: Discussionsupporting

confidence: 90%

VoIP Codec Performance Evaluation on GRE with IPsec over IPv4 and IPv6

Alausa¹,

Arekete²,

Odim³

et al. 2021

Adv. sci. technol. eng. syst. j.

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“…ITU-T G.711 codec is extensively used in many contemporary systems. It is an inevitable part in public switched telephone network (PSTN) and voice over internet protocol (VoIP) [8,9].…”

Section: Introductionmentioning

confidence: 99%

Dual-mode quasi-logarithmic quantizer with embedded G.711 codec

Denic

Perić

Despotović

et al. 2018

Journal of Electrical Engineering

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The G.711 codec has been accepted as a standard for high quality coding in many applications. A dual-mode quantizer, which combines the nonlinear logarithmic quantizer for restricted input signals and G.711 quantizer for unrestricted input signals is proposed in this paper. The parameters of the proposed quantizer are optimized, where the minimal distortion is used as the criterion. It is shown that the optimized version of the proposed quantizer provides 5.4 dB higher SQNR (Signal to Quantization Noise Ratio) compared to G.711 quantizer, or equivalently it performs savings in the bit rate of approximately 0.9 bit/sample for the same signal quality. Although the complexity is slightly increased, we believe that due to the superior performance it can be successfully implemented for high-quality quantization.

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Role of codec selection on the performance of IPsec secured VoIP

Cited by 2 publications

References 10 publications

VoIP Codec Performance Evaluation on GRE with IPsec over IPv4 and IPv6

VoIP Codec Performance Evaluation on GRE with IPsec over IPv4 and IPv6

Dual-mode quasi-logarithmic quantizer with embedded G.711 codec

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