Wireless Multimedia Sensor Networks (WMSNs) undergo congestion when a link (or a node) becomes overpopulated in terms of incoming packets. In WMSNs this happens especially in upstream nodes where all incoming packets meet and directed to the sink node. Congestion in networks, if not handled properly, might lead to congestion collapse which deteriorates the quality of service (QoS). Therefore, i...

As the cost of hardware of CMOS cameras and microphones is reasonably low, multimedia sensor networks are becoming highly feasible to extract detailed information about the environment. Distributed smart cameras and video sensor networks are examples of some popular applications. However, due to unique properties of multimedia data delivery, we face novel challenges for resource-constrained sen...

Wireless Multimedia Sensor Networks (WMSNs) have entered the class of Wireless Sensor Networks to meet the multimedia requirements of new emerging applications, such as surveillance and telepresence. WMSNs commonly carry heterogeneous traffic with different Quality of Service (QoS) requirements. In this paper, the state of the art in QoS, protocols, Test beds, Simulators and the QoS requirement...

The area of wireless multimedia sensor networks (WMSNs) is one of the emerging and fast growing fields in the scientific world. This has brought about developing low cost, low-power and multi-function multimedia sensor nodes networks of wirelessly interconnected that are able to ubiquitously retrieve multimedia content such as video and audio streams, still images, and scalar sensor data from t...

Wireless multimedia sensor networks, as a new type of processing and information retrieval technology. It is based on the existing wireless sensor network to construct and develop. This technology has the multimedia information awareness. In the commercial, civil and military and other fields it has been widely applied. Wireless multimedia sensor networks can be combined with multimedia technol...

Image and video sensing data in the Multimedia Wireless Sensor Networks make many requirements in the resource of bandwidth and energy. For the purpose of real-time transmission of multimedia data, this paper proposes a new QoS protocol applied to Multimedia Wireless Sensor Networks--REAR. In this protocol metadata is used to establish multi-path routing for reduce the energy consumption and a ...

Rapid penetration of small customized wireless devices and enormous growth of wireless communication technologies have already set the stage for large-scale deployment of wireless sensor networks. Offering precise quality of service (QoS) for multimedia transmission over sensor networks has not received significant attention. However offering some better QoS for wireless multimedia over sensor ...