A Realistic Multipath Routing for Ad Hoc Networks

Nowadays, a recent trend has emerged in the Wireless Multimedia Sensor Networks (WMSNs) field. This trend consists of ensuring the best Quality of Experience (QoE) while transferring the multimedia content, as well as keeping an acceptable Quality of Service (QoS) concerning the scalar data transmission. However, ensuring this request needs more flexible and robust protocols at different communication layers. Especially, the network layer must provide an efficient routing protocol with awareness of the interference phenomenon and the carrier sense range effect. In this paper we provide analysis of the carrier sense range effect on multimedia communication in the WMSNs. Therefore, we present a realistic solution at the routing layer to enhance the QoS/QoE while avoiding any type of multipath coupling effect. Our solution differs from the existing approaches that handle the problem at the MAC layer. Simulations conducted over the NS-2 simulator show promising results in terms of delay, Packet Delivery Ratio (PDR) and QoE.