Lightning: A fast and lightweight acoustic localization protocol using low-end wireless micro-sensors

Qixin Wang, Rong Zheng, Ajay Tirumala, Xue Liu, Lui Sha

Research output: Journal article publicationConference articleAcademic researchpeer-review

4 Citations (Scopus)


Acoustic awareness is an important service in ubiquitous computing environments. This paper presents a fast lightweight acoustic event localization protocol, the Lightning protocol, to locate impulsive sound sources using arrays of wireless micro-sensors. This protocol utilizes domain-invariant knowledge of acoustic and electromagnetic wave propagation to efficiently reduce the number of contending sensors in the localization process. It incurs O(1) transmissions irrespective of the sensor density and guarantees O(1) time delay in localization. Experiment results using UC Berkeley Motes demonstrate that the time delay for Lightning Protocol to locate hand clap sounds is in terms of milliseconds. Dept. of Computer Science, Univ. of Houston
Original languageEnglish
Pages (from-to)371-381
Number of pages11
JournalProceedings - Real-Time Systems Symposium
Publication statusPublished - 1 Dec 2004
Externally publishedYes
Event25th IEEE International Real-Time Systems Symposium, RTSS 2004 - Lisbon, Portugal
Duration: 5 Dec 20048 Dec 2004

ASJC Scopus subject areas

  • Software
  • Hardware and Architecture
  • Computer Networks and Communications


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