IoT Multimedia Sensors for Energy Efficiency and Security: A Review of QoS Aware and Methods in Wireless Multimedia Sensor Networks

In this era of IoT, due to the fast Advancements in sensor technology and the availability of low-cost hardware, the development of Wireless Multimedia Sensor Networks (WMSNs) has emerged. WMSNs are composed of resource constrained wireless nodes through which both the scalar data and multimedia data (i.e., audio, still images, and video) can be sensed and acquired from the environment. However, the resource constrained nature of multimedia sensing devices has made the WMSNs to face several challenges. To tackle these challenges, different authors developed different methods. In this paper, we have surveyed all such kind of methods. Initially we study about the basic architecture of multimedia senor node followed by characteristics and applications of WMSNs. Following that, we did a comprehensive survey of various methodologies, which we divided into three categories. Under the segregation, we have considered different aspects and segregated as Data Security, QoS Aware methods, and Energy Aware methods.