Efficient Power-Delay Management Framework for Enhancing the Lifetime of IoT Devices

The Internet of Things (IoT) connects huge numbers of objects together, then monitors and gathers data on machines and human life. Since energy efficiency and delay time reduction are of the highest importance to the IoT devices and control data, power consumption and delay issues are the most recent and primary challenges in IoT environment, where the research works and IoT-related standards have been focused on [1]. For example, the IoT environment provides a global connectivity by connecting a huge number of smart phones and embedded devices for the simplification of life through being sensitive, adaptive, and responsive to human needs. Such devices transfer lightweight data over long periods and are located in hard-to-reach places, where is difficult to deploy a source of power to handle these devices over a long coverage area. This situation requires a source of power and a technique to handle all these devices over large coverage areas, which are not guaranteed and difficult to deploy it. Thus, a new paradigm called Low Power Wide Area networks (LPWAN), similar to Long Term Evolution Machine Type Communications Category M1 (LTE MTC Cat-M1 and Narrow Band IoT (NB-IoT), should be adopted in integrating and extending the achieved gains for solving these issues that shape the power consumption with a large coverage area of tens of billions of devices [2]. LPWAN is defined for solving these issues by using a DRX/eDRX mechanism; however, the existing DRX models are partially inconsistent with 4G. The purpose of this research is to propose a framework that improve the power saving efficiency while maintaining the ability to guarantee the delay requirement for achieving a better lifetime of IoT devices. Hence, it will save expended resources that could have been exhausted on the cost replacement and maintenance.