A cellular-assisted QoS-aware resource allocation algorithm for Wireless Sensor Networks

In recent years, Wireless Sensor Networks (WSNs) are booming to meet the fast-increasing requirements of data-centric services. Current researches on heterogeneous WSNs usually assume the integration of fixed sink node or gateway in WSNs. A few researches have concerned about the mobile terminals acting as a gateway. In order to support high priority communication Quality of Service (QoS), this paper proposes a cellular-assisted QoS-aware resource allocation algorithm for the convergence of cellular networks and WSN. A mobile terminal acts as both sensor nodes for WSNs and UE for cellular networks. Thus, this mobile terminal can act as a gateway and scheduler to manage the resource of WSN, and significantly reduce collisions and guarantee the QoS of WSNs through BS-assistance. Simulation results show better system performance, in terms of high priority WSN data transmission delay and packet loss rate.