QoS-based adaptive playout scheduling based on the packet arrival statistics: Capturing local channel characteristics

In IP networks, a voice quality suffers from the uncertainness of the packet-switch network characteristics. In particular, delay variation, the so-called jitter, can cause the packet-loss effect, resulting in sound degradation. An adaptive playout-buffer scheduling algorithm is used to overcome the...

Full description

Saved in:
Bibliographic Details
Published in2010 IEEE International Workshop Technical Committee on Communications Quality and Reliability (CQR 2010) pp. 1 - 5
Main Authors Sanghyun Chi, Womack, B F
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.06.2010
Subjects
Delay
Gaussian distribution
IP networks
Jitter
Optimization
Quality of service
Scheduling
Online AccessGet full text

Cover

More Information
Summary:In IP networks, a voice quality suffers from the uncertainness of the packet-switch network characteristics. In particular, delay variation, the so-called jitter, can cause the packet-loss effect, resulting in sound degradation. An adaptive playout-buffer scheduling algorithm is used to overcome the packet-loss effect caused by the jitter. A distribution-based approach provides an analytical scheduling scheme that meets a desired quality of service. This approach highly depends on the method to calculate channel characteristics. In this paper, three different calculation methods are suggested. One of three gives a distribution-based approach the ability to capture local channel characteristics. As a result, a distribution-based approach becomes more efficient.
ISBN:9781424477951
1424477956
ISSN:2163-5595
DOI:10.1109/CQR.2010.5619942