XLCM: Xross-layer communication module for service differentiation in Wireless Sensor Networks

Wireless Sensor Networks (WSNs), having inherent features, require new protocols and algorithms for QoS provisioning in realtime multimedia applications. In this paper, we present a new cross-layer communication module, called XLCM and its protocol XLCP enabling scalable service differentiation in WSNs. We implemented XLCP as a module in NS-2 simulator to evaluate its performance. The results indicate that the protocol succesfully differentiates the service classes in terms of latency and reliability requirements.