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Voice over Sensor Networks

9 years 6 months ago
Voice over Sensor Networks
Wireless sensor networks have traditionally focused on low duty-cycle applications where sensor data are reported periodically in the order of seconds or even longer. This is due to typically slow changes in physical variables, the need to keep node costs low and the goal of extending battery lifetime. However, there is a growing need to support real-time streaming of audio and/or low-rate video even in wireless sensor networks for use in emergency situations and shortterm intruder detection. In this paper, we describe a real-time voice stream-capability in wireless sensor networks and summarize our deployment experiences of voice streaming across a large sensor network of FireFly nodes in an operational coal mine. FireFly is composed of several integrated layers including specialized low-cost hardware, a sensor network operating system, a real-time link layer and network scheduling. We are able to provide efficient support for applications with timing constraints by tightly coupling...
Rahul Mangharam, Anthony Rowe, Raj Rajkumar, Ryohe
Added 12 Jun 2010
Updated 12 Jun 2010
Type Conference
Year 2006
Where RTSS
Authors Rahul Mangharam, Anthony Rowe, Raj Rajkumar, Ryohei Suzuki
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