Title :
A Scalable Wideband Speech Coder for Mobile Ad Hoc Networks
Author :
Yang Yuhong ; Hu Ruimin ; Al Haojun ; Luo Yunfan
Author_Institution :
Key Lab. of Multimedia & Network Commun. Eng., Wuhan Univ., Hubei
Abstract :
Achieving effective voice communication over mobile ad hoc networks (MANETs) offers both new challenges and opportunities for speech coding. This paper investigates a new 13.6 kb/s subband structure bandwidth scalable (SB-SWS) scheme for MANETs, which is based on a high-quality narrowband speech coder, the 11.8 kb/s G.729 Annex E, with the higher band using a bandwidth extension (BWE) approach to reduce bit rate required. The performance of the scalable coder is tested for MANETs with a simulation test. The results demonstrate that the scalable approach contributes to effective and reliable voice communication in MANETs
Keywords :
ad hoc networks; bandwidth allocation; mobile radio; speech coding; voice communication; MANET; bandwidth extension; mobile ad hoc networks; scalable wideband speech coder; subband structure bandwidth scalable scheme; voice communication; Bandwidth; Mobile ad hoc networks; Mobile communication; Network topology; Peer to peer computing; Routing; Speech coding; Spread spectrum communication; Testing; Wideband;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing, 2006. WiCOM 2006.International Conference on
Conference_Location :
Wuhan
Print_ISBN :
1-4244-0517-3
DOI :
10.1109/WiCOM.2006.312
