NDLI: EnviroMic: Towards Cooperative Storage and Retrieval in Audio Sensor Networks

Content Provider	IEEE Xplore Digital Library
Author	Liqian Luo Qing Cao Chengdu Huang Abdelzaher, T. Stankovic, J.A. Ward, M.
Copyright Year	2007
Description	Author affiliation: Dept. of Comput. Sci., Univ. of Illinois at Urbana-Champaign, Urbana, IL (Liqian Luo; Qing Cao; Chengdu Huang; Abdelzaher, T.)
Abstract	This paper presents EnviroMic, a novel distributed acoustic monitoring, storage, and trace retrieval system. Audio represents one of the least exploited modalities in sensor networks to date. The relatively high frequency and large size of audio traces motivate distributed algorithms for coordinating recording tasks, reducing redundancy of data stored by nearby sensors, filtering out silence, and balancing storage utilization in the network. Applications of acoustic monitoring with EnviroMic range from the study of mating rituals and social behavior of animals in the wild to audio surveillance of military targets. EnviroMic is designed for disconnected operation, where the luxury of having a basestation cannot be assumed. We implement the system on a Tiny OS-based platform and systematically evaluate its performance through both indoor testbed experiments and a preliminary outdoor deployment. Results demonstrate up to a 4-fold improvement in effective storage capacity of the network compared to uncoordinated recording.
Sponsorship	IEEE Comput. Soc. Tech. Comm. Distributed Process.
Starting Page	34
Ending Page	34
File Size	749214
Page Count	1
File Format	PDF
ISBN	0769528373
ISSN	10636927
DOI	10.1109/ICDCS.2007.108
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-06-25
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Acoustic sensors Monitoring Frequency Distributed algorithms Audio recording Filtering Acoustic applications Animals Surveillance System testing orig-research
Content Type	Text
Resource Type	Article
Subject	Computer Networks and Communications Hardware and Architecture Software

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