Daniel, UP;
Agbanusi, NC;
Danjuma, KJ;
(2014)
A Survey of Bandwidth Optimization Techniques and Patterns in VoIP Services and Applications.
IJCSI, International Journal of Computer
, 11
(2)
pp. 211-218.
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Abstract
This article surveys the various techniques adopted for optimising bandwidth for VoIP services over the period 1999-2014. The improvement of bandwidth can be realized through; silence suppression measure of repressing the silent portions (packets) in a voice conversation using Voice Activity Detection algorithm; by so doing, the transmission rate during the inactive periods of speech is reduced, and thus, the mean transmission rate can be reduced. A second measure is packet header reduction which defines a process of multiplexing and de-multiplexing packet headers to curb excesses. Voice/ Packet Header compression is considered the most productive of all the techniques, offering a scheme where VoIP packets are compressed from the 40 bytes of size to a smaller byte size of 2 bytes. When combined with aggregation, compression potentially yields a compressed size of up to 1 byte. In either case, bandwidth save is reached using compression and decompression codecs of varying data and bit rates. It is envisaged that an improvement in the performance of codecs would yield a better result in terms of enhancing results favourably in Voice over broadband networks
| Type: | Article |
|---|---|
| Title: | A Survey of Bandwidth Optimization Techniques and Patterns in VoIP Services and Applications |
| Open access status: | An open access version is available from UCL Discovery |
| Language: | English |
| Additional information: | This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | VoIP Improvements, VoIP Optimization, Bandwidth Wastage, Bandwidth Utilization, Packet Header Reduction, Packet Header Compression, Header Aggregation, Silence Supression, Multiplexin, Delta-Multiplexing. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > STEaPP |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10115945 |
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