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
AuthorsLykourgiotis, 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.

KeywordsVoIP; Handover management; Playout algorithm; Fast handovers; WSOLA; MIH; 0805 Distributed Computing; 1005 Communications Technologies; 0906 Electrical And Electronic Engineering; Networking & Telecommunications
Year2017
JournalWireless Personal Communications
Journal citation96 (2), pp. 2427-2446
PublisherKluwer Academic Publishers
ISSN0929-6212
Digital Object Identifier (DOI)https://doi.org/10.1007/s11277-017-4305-1
Publication dates
Print17 May 2017
Publication process dates
Deposited05 Jun 2017
Accepted01 May 2017
Accepted author manuscript
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Open
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