A Quality-Aware Voice Streaming System for Wireless Sensor Networks

doi:10.1145/2594775

CORC > 北京大学 > 软件与微电子学院

	A Quality-Aware Voice Streaming System for Wireless Sensor Networks
	Li, Liqun ; Xing, Guoliang ; Sun, Limin ; Liu, Yan
刊名	acm transactions on sensor networks
	2014
关键词	Design Algorithms Performance Wireless sensor networks voice streaming admission control
DOI	10.1145/2594775
英文摘要	Recent years have witnessed the pilot deployments of audio or low-rate video wireless sensor networks for a class of mission-critical applications including search-and-rescue, security surveillance, and disaster management. In this article, we report the design and implementation of Quality-aware Voice Streaming (QVS) for wireless sensor networks. QVS is built upon SenEar, a new sensor hardware platform we developed for high-bandwidth wireless audio communication. QVS comprises several novel components, which include an empirical model for online voice-quality evaluation and control, dynamic voice compression/duplication adaptation for lossy wireless links, and distributed stream admission control that exploits network capacity for rate allocation. We have extensively tested QVS on a 20-node network deployment. Our experimental results show that QVS delivers satisfactory voice quality under a range of realistic settings while achieving high network capacity utilization.; Computer Science, Information Systems; Telecommunications; SCI(E); 0; ARTICLE; leland.liqun.li@gmail.com; 4; 10
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/389197]
专题	软件与微电子学院
推荐引用方式 GB/T 7714	Li, Liqun,Xing, Guoliang,Sun, Limin,et al. A Quality-Aware Voice Streaming System for Wireless Sensor Networks[J]. acm transactions on sensor networks,2014.
APA	Li, Liqun,Xing, Guoliang,Sun, Limin,&Liu, Yan.(2014).A Quality-Aware Voice Streaming System for Wireless Sensor Networks.acm transactions on sensor networks.
MLA	Li, Liqun,et al."A Quality-Aware Voice Streaming System for Wireless Sensor Networks".acm transactions on sensor networks (2014).