Paper Info
Title
A Packet Loss Concealment Technique Improving Quality Of Service For Wideband Speech Coding In Wireless Sensor Networks
Abstract
A packet loss concealment (PLC) algorithm is proposed to improve the quality of decoded speech when packet losses occur in a wireless sensor network. The proposed algorithm is mainly based on artificial bandwidth extension (ABE) from narrowband to wideband. It consists of three main functions: packet loss concealment in the narrowband, ABE in the modified discrete cosine transform (MDCT) domain, and smoothing of wideband MDCT coefficients with those of the last good frame. The performance of the proposed PLC algorithm is implemented by replacing the PLC algorithm employed in the ITU-T Recommendation G.729.1. The experimental results show that the proposed PLC algorithm provides significantly better speech quality than the PLC in the ITU-T G.729.1.
Year
DOI
Venue
2014
10.1155/2014/852798
INTERNATIONAL JOURNAL OF DISTRIBUTED SENSOR NETWORKS
Field
DocType
Volume
Packet loss concealment,Wideband,Narrowband,Computer science,Modified discrete cosine transform,Bandwidth extension,Network packet,Quality of service,Computer network,Wireless sensor network
Journal
2014
ISSN
Citations 
PageRank 
1550-1477
1
0.36
References 
Authors
11
4
Name
Order
Citations
PageRank
Nam In Park1154.19
Jin Ah Kang292.30
Seong Ro Lee315226.32
Hong Kook Kim425851.67