A reliable protocol for multimedia transmission over wireless sensor networks

The development of wireless sensor networks in last decade have changed the way information is collected and retrieved from the area monitoring. However, the harvesting data might be limited to more complex applications such as surveillance, object detection and tracking. For this reason, the research efforts in the field of wireless multimedia sensor networks (WMSNs) have growth rapidly so far. In this paper, the reliability issue is concentrated on to deliver sustained data over WMSNs for long periods of time, by contrast with the environmental noises. This reliable transport protocol (RTP) combines a modified automatic repeat request error-control with an error-correction mechanism. The experimental results in a Raspberry Pi compute module and an Atmel transceiver prove that RTP can transfer data successfully with a wide range of transmission rates, from 16.6 to 430.5 Kbps, at a distance up to 128 m.

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