Scalable and Low-Cost Acoustic Source Localization for Wireless Sensor Networks

Typical applications of wireless sensor networks require scalability because they are deployed in a large area. Conventional centralized systems for acoustic source localization experience practical difficulties since they focus on high accuracy in a small area rather than scalability in a large region. In this paper, we present a scalable and light-weight acoustic source localization system suitable for use with resource constrained hardware. The distributed mechanism has low complexity and an error-tolerant algorithm for construction of a feasible system in a real environment. The proposed system has been implemented and validated by experiments in a real environment.