Ijoeet Evolution of Wireless Sensor Networks towards the Internet of Things

Technological advancements in the silicon industry, as predicted by Moore’s law, have enabled integration of billions of transistors on a single chip. To exploit this high transistor density for high performance, embedded systems are undergoing a transition from single-core to multi-core. Although a majority of embedded wireless sensor networks (EWSNs) consist of single-core embedded sensor nodes, multi-core embedded sensor nodes are envisioned to burgeon in selected application domains that require complex in-network processing of the sensed data. In this paper, we propose an architecture for heterogeneous hierarchical multicore embedded wireless sensor networks (MCEWSNs) as well as an architecture for multi-core embedded sensor nodes used in MCEWSNs. We elaborate several compute-intensive tasks performed by sensor networks and application domains that would Especially benefit from multi-core embedded sensor nodes. This paper also investigates the feasibility of two multi-core architectural paradigms V symmetric multiprocessors (SMPs) and tiled manycore architectures (TMAs)V for MCEWSNs. Key Words— Microcontroller, GPRS wireless transmission module, ZIGBEE, Sensors.