Sensor virtualization middleware design for ambient assisted living based on the priority packet processing

Abstract

Wireless Sensor Network (WSN) is leading towards a new and more advanced paradigm that is Internet of Everything (IoE). Ambient Assisted Living (AAL), which aims to support elderly and physically challenged persons, is based on sensor networks. WSNs are mostly installed for a particular single application. Though, future of WSNs hides in WSN virtualization, which supports multiple applications. The aggregation of the sensor network resources in the form of software or hardware are supported by WSN virtualization. In Virtualizing WSN, the role of middleware layer is of supreme importance. However, a middleware layer faces overhead challenges of high processing time, delay, and the power consumption. The major challenge faced by AAL application in the paradigm of WSN virtualization is the delay caused by the aggregation of the sensed data. In this research paper efforts have been made to design a priority based multi-threading middleware design for sensor virtualization. The proposed middleware resides at the sensor node as well as the gateway that reduces the delay caused by the sensor virtualization. The proposed middleware design has been implemented and tested on the AAL testbed.