A Novel Mobility-Aware Playout Algorithm for VoIP Services
Journal article
Lykourgiotis, A, Kotsopoulos, S and Dagiuklas, A. (2017). A Novel Mobility-Aware Playout Algorithm for VoIP Services. Wireless Personal Communications. 96 (2), pp. 2427-2446. https://doi.org/10.1007/s11277-017-4305-1
Authors | Lykourgiotis, A, Kotsopoulos, S and Dagiuklas, A. |
---|---|
Abstract | The latest explosive growth in mobile networks has resulted in an increasing interest in optimisation techniques for mobile services. Resent advances in mobile wireless networks incorporate link-layer intelligence in order to enhance the performance of network and application layers. The Media Independent Handover (MIH) standard provides a framework that can make such link-layer intelligence available to upper layers. In this paper, a novel MIH-enabled playout algorithm for Voice over Internet Protocol applications is presented that aims to compensate for the degradation of voice quality caused by handovers. To that end, link-layer triggers in conjunction with speech time-scale modification techniques are exploited to mitigate the increase in delay and jitter induced by the handover process. Results of subjective listening tests show typical gains of 0.3 on a 5-point scale of the Mean Opinion Score with respect to existing playout scheduling schemes. |
Keywords | VoIP; Handover management; Playout algorithm; Fast handovers; WSOLA; MIH; 0805 Distributed Computing; 1005 Communications Technologies; 0906 Electrical And Electronic Engineering; Networking & Telecommunications |
Year | 2017 |
Journal | Wireless Personal Communications |
Journal citation | 96 (2), pp. 2427-2446 |
Publisher | Kluwer Academic Publishers |
ISSN | 0929-6212 |
Digital Object Identifier (DOI) | https://doi.org/10.1007/s11277-017-4305-1 |
Publication dates | |
17 May 2017 | |
Publication process dates | |
Deposited | 05 Jun 2017 |
Accepted | 01 May 2017 |
Accepted author manuscript | License File Access Level Open |
Page range | 1-20 |
https://openresearch.lsbu.ac.uk/item/86z5y
Download files
Accepted author manuscript
WPC_Springer_Lykourgiotis_Kotsopoulos_Dagiuklas.pdf | ||
License: CC BY 4.0 | ||
File access level: Open |
130
total views242
total downloads3
views this month2
downloads this month