Two tiered service differentiation mechanism for wireless multimedia sensor network MAC layers

WMSNs carry heterogeneous traffic with different urgency and Quality of Service (QoS) requirements. While the need to minimize the energy consumption is important in wireless sensor networks WSNs, offering QoS support for especially real-time multimedia transmission is a challenging issue due to resource constrained nature structure of sensor nodes, unreliable wireless links and unpredictable environmental conditions. Currently, there is an emereging need for new QoS- aware, priority- based Medium Access Control (MAC) protocols on to be employed in WMSNs. The proposed new two tiered service differentiation mechanism provides about 4 times lower end -to -end latency for urgent real- time video traffic compared to the other data traffic types while as well as providing it can achieve lower better end-to- end latency for each traffic class. Proposed Its mechanism has been fundamentally focused on QoS provisioning at MAC layer for urgent real-time data traffic on especially military applications.