A Scalable Wideband Speech Coder for Mobile Ad Hoc Networks

摘要：

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.

关键词： bandwidth scalable speech coding bandwidth extension wideband speech coding MANETs

作者: YANG Yuhong HU Ruimin AI Haojun LUO Yunfan

作者单位: The Key Laboratory of Multimedia and Network Communications Engineering Wuhan Univ.,Hubei,China

会议类型: 国际会议

会议名称: 第二届IEEE无线通讯、网络技术暨移动计算国际会议

会议地点: 武汉

会议语种:英文

在线出版日期: 2006-09-01（万方平台首次上网日期，不代表论文的发表时间）