Computer Science & Electronics Journals
Wireless Multimedia Sensor Networks (WMSNs) has made it possible to send multimedia data on small sensing devices. The multimedia content in such networks increase the level of information collected from the monitored field, enlarging the range of coverage and multi-view support. It is proved by researchers that the multi-tier network architecture is more beneficial than a single-tier in terms of energy-efficiency, scalability and reliability for multimedia data transmission. In this paper, application like intrusion detection appears as a promising application of multi-tier WMSNs, where the lower tier can detect the intruder using scalar sensors and the higher tier camera nodes will be woken up to send real time video sequences detected from the monitoring area.