AdamRTP: Adaptive Multi-flows Real-time Multimedia delivery over WSNs
Aniss Zakaria, Randa El-Marakby · 2009
Real-time multimedia applications are time sensitive and require extra resources from the network, e.g. large bandwidth and big memory. However, Wireless Sensor Networks (WSNs) suffer from limited resources such as computational, storage, and bandwidth capabilities. Therefore, sending real-time multimedia applications over WSNs can be very challenging. For this reason, we propose an Adaptive Multi-flows Real-time Multimedia Transport Protocol (AdamRTP) that has the ability to ease the process of transmitting real-time multimedia over WSNs by splitting the multimedia source stream into smaller independent flows using an MDC-aware encoder, then sending each flow to the destination using joint/disjoint path(s). AdamRTP uses also dynamic adaptation techniques, e.g. changing number of flows and rate adaptation. Simulations experiments demonstrate that AdamRTP enhances the Quality of Service (QoS) of the data transmission. Also, we show that in an ideal WSN, using multi-flows consumes less power per node than using a single flow and extends the life-time of the network.