Application-driven virtual network embedding for industrial wireless sensor networks

The evolution of industrial wireless sensor networks (IWSNs) is driven by various factory automation applications with strict demands on latency and reliability, which requires flexible network resource allocation to support diverse QoS requirements of different applications. To this end, we propose an application-driven virtual network embedding (AVNE) scheme to facilitate the QoS provisioning for different applications leveraging the network virtualization (NV) technique. AVNE employs a novel anypath link mapping approach based on the anypath routing scheme, which greatly improves the efficiency of the embedded path by exploiting the unique features of wireless channels. Our simulations demonstrate that the proposed AVNE scheme significantly improves the revenue and admission ratio while minimizing the cost in virtualized IWSNs. AVNE also achieves better load-balance and thus is less prone to cause bottleneck nodes and links.