Chapter 22 Wireless Multimedia Sensor Networks

The emergence of low-cost and mature technologies in wireless commu- nication, visual sensor devices, and digital signal processing facilitate of wireless multimedia sensor networks (WMSN). Like sensor networks which respond to sensory information such as temperature and humidity, WMSN interconnects au- tonomous devices for capturing and processing video and audio sensory informa- tion. This survey highlights the following topics (1) a summary of applications and challenges of WMSN; (2) an overview of advanced coding techniques for WMSN, including video and audio source coding, and distributed coding techniques; (3) a survey of WMSN communication protocols, including routing techniques and phys- ical layer standards; and (4) a summary of Quality-of-Service (QoS) and security aspects of WMSN.