2008, 30(6): 1511-1516.
doi: 10.3724/SP.J.1146.2007.00016
Abstract:
Wireless Multimedia Sensor Networks (WMSNs), developed from traditional Wireless Sensor Networks(WSNs), is a novel sensor network integrating sensation functions of multimedia streaming (e.g. audio, video, image) and has wide applications. In this paper, the concept and the characteristics of WMSNs are described by comparing with traditional WSNs. Then, on the basis of a survey of the current research status, the key techniques of WMSNs, including node systems, MAC protocols, routing protocols, multimedia signal processing, are discussed in detail. Finally, the current problems are demonstrated, and the further research issues are also discussed.