VoIP Codec Selection for Digital PLC Systems
Journal of Electrical and Electronic Engineering
Volume 3, Issue 2-1, March 2015, Pages: 46-49
Received: Dec. 19, 2014; Accepted: Dec. 23, 2014; Published: Dec. 31, 2014
Views 2743      Downloads 168
Authors
Maryam Shabro, Communication Department, Niroo Research Institute, Tehran, Iran
Behnam Gholamrezazadeh Family, Communication Department, Niroo Research Institute, Tehran, Iran
Vahid Hammiaty Vaghef, Communication Department, Niroo Research Institute, Tehran, Iran
Article Tools
Follow on us
Abstract
IP-based networks developments highly integrate the communication systems and significantly reduce the installation cost. Digital PLC systems with the capability of Ethernet and VoIP services are designed because of the demand of new communication services in the electric power industry. Also due to the limited bandwidth in digital PLC systems, there are several techniques for optimal use of transmission capacity. In this paper, the possibility of using VoIP services in digital PLC systems has been investigated. Many conventional standards are studied for several parameters such as total algorithm delay, voice payload size/duration, packets per second, and bandwidth to select the best codec. Finally, a proper codec is recommended to employ in the digital PLC's VoIP service according to the two important factors in quality of voice services, i.e. available bandwidth and latency.
Keywords
Voice codec, Bandwidth, Delay, Digital PLC, PLC Link Transition, VoIP.
To cite this article
Maryam Shabro, Behnam Gholamrezazadeh Family, Vahid Hammiaty Vaghef, VoIP Codec Selection for Digital PLC Systems, Journal of Electrical and Electronic Engineering. Special Issue: Research and Practices in Electrical and Electronic Engineering in Developing Countries. Vol. 3, No. 2-1, 2015, pp. 46-49. doi: 10.11648/j.jeee.s.2015030201.20
References
[1]
Cigre, Working Group D2.23, "The use of Ethernet technology in the power utility environment", Report 460, 2011.
[2]
IEC 62488-1 Ed.1, "Power line communication systems for power utility applications - Part 1: Planning of analogue and digital power line carrier systems operating over EHV/HV/MV electricity grids", IEC, 2012.
[3]
Cisco, "Introduction to VoIP", Cisco publications, 2005.
[4]
ITU-T Recommendation G.723.1, "Dual rate speech coder for multimedia communication transmitting at 5.3 and 6.3 kbps", ITU-T, 2006. Online at: http://www.itu.int/rec/T-REC-G.723.1-200605-I/en.
[5]
ITU-T Recommendation G.729, "Coding of speech at 8kbit/s using CS-ACELP", ITU-T, 2012. Online at: http://www.itu.int/rec/T-REC-G.729-201206-I/en.
[6]
ITU-T Recommendation G.131, "Talker echo and its control", ITU-T, 2003. Online at: http://www.itu.int/rec/T-REC-G.131-200311-I/en.
[7]
ITU-T Recommendation G.114, "One-way transmission time", ITU-T, 2003. Online at: http://www.itu.int/rec/T-REC-G.114-200305-I/en.
[8]
Cisco, "Improving and maintaining voice quality", Cisco publications, 2005.
ADDRESS
Science Publishing Group
1 Rockefeller Plaza,
10th and 11th Floors,
New York, NY 10020
U.S.A.
Tel: (001)347-983-5186