Abstract
Heterogeneous network convergence and handover have become very hot in recent years. This paper proposed an efficient handover scheme in Multi-PAN Wireless Sensor Networks (WSNs). A number of edge nodes are set at the edge of each Personal Area Networks (PANs). A user equipment (UE), which has WSN and cellular network interface, acts as sensor node or mobile cluster head in WSN area. Thus, edge early warning can be acquired from edge nodes and neighbor channel information can be acquired with BS-assistance. Simulation results show that low transmission interrupted delay and low energy consumption can be achieved compared with conventional scheme in WSN.
Highlights
With the development of Wireless Sensor Networks (WSNs) [1,2,3] and cellular networks, modern technologies have been prepared for creating the convergent communication infrastructures, through which wireless sensor network (WSN) and cellular networks convergence have become inevitable
Simulation results show that low transmission interrupted delay and low energy consumption can be achieved compared with conventional scheme in WSN
Edge node is located at the edge of its Personal Area Networks (PANs) or in the overlapping area of two PANs, and it is used to the edge early warning for mobile sensors
Summary
With the development of WSNs [1,2,3] and cellular networks, modern technologies have been prepared for creating the convergent communication infrastructures, through which WSNs and cellular networks convergence have become inevitable These heterogeneous networks appear in many application areas [4], especially in the health care. Richard et al in [10] proposed a handover mechanism for WSNs. Sensor nodes can hand over in certain areas to achieve connecting from a mobile cluster head to a fixed and main-powered cluster head which connected to a permanent power supply for saving energy. This paper proposed an efficient handover scheme in Multi-PAN WSN. Through coordination of the BS, edge nodes can be set at the edge of PAN to achieve edge early warning and UE can acquire the neighbor PAN channel information with cellular link to achieve efficient handover and reduce transmission interrupted delay.
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