Wireless Sensor Networks (WSN) mainly deal with scalar data such as temperature, humidity, and light which are very suitable for low rate and low power IEEE 802.15 based networking technology. The commercial off-the-shelf (COTS) CMOS camera has fostered researchers to push WSN a step further. The unique properties of multimedia data delivery pose fresh challenges for resource constrained sensor...

Prolongation of the lifetime has become a key challenge in design and implementation of Wireless Multimedia Sensor Networks (WMSNs). The energy consumed in multimedia sensor nodes is much more than in the scalar sensors; a multimedia sensor captures images or acoustic signals containing a huge amount of data while in the scalar sensors a scalar value is measured (e.g., temperature). On the othe...

The availability of inexpensive hardware such as CMOS cameras and microphones has raised the development of Wireless Multimedia Sensor Networks (WMSNs), These networks are collection of wireless interconnected devices that are able to universally access multimedia content such as video and audio streams, still images, and scalar sensor data from the environment. WMSN has gained popularity becau...

A wireless sensor network (WSN) consists of spatially distributed autonomous sensors to monitor physical or environmental conditions, such as temperature, sound, pressure etc. and to cooperatively pass their data through the network to a main location. Transmission of large sized images can be a bottleneck for a Wireless Multimedia Sensor Nodes due to its limited resources. Energy of the indivi...

wireless sensor networks (wsns) have many applications in the areas of commercial, military and environmental requirements. regarding the deployment of low cost sensor nodes with restricted energy resources, these networks face a lot of security challenges. a basic approach for preparing a secure wireless communication in wsns, is to propose an efficient cryptographic key management protocol be...

Wireless Multimedia Sensor Networks (WMSNs) are wireless connected sensor’s with audio and video capabilities in addition to scalar sensing. Limited availability of bandwidth is a major constraint for multimedia data in WMSNs. The requirement of real time streaming poses another challenge in the network. Medium access control (MAC) protocols designed for traditional wireless sensor networks can...

In recent years, integrated applications with multimedia devices and wireless sensor networks promoted the evolution of wireless sensor networks, namely wireless multimedia sensor networks (WMSNs). The applications in WMSNs have to focus on both energy saving and application-level quality of service (QoS). Due to the characteristics in WMSNs, such as resource constraints and variable channel ca...

The availability of low-cost hardware such as CMOS cameras and microphones has fostered the development of Wireless Multimedia Sensor Networks (WMSNs), i.e., networks of wirelessly interconnected devices that are able to ubiquitously retrieve multimedia content such as video and audio streams, still images, and scalar sensor data from the environment. In this paper, the state of the art in algo...