Power Optimization Model for Energy Sustainability in 6G Wireless Networks

Ashu Taneja, Nitin Saluja, Neeti Taneja, Ali Alqahtani, M. A. Elmagzoub, Asadullah Shaikh and Deepika Koundal
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Ashu Taneja: Chitkara University Institute of Engineering and Technology, Chitkara University, Rajpura 140401, India
Nitin Saluja: Chitkara University Institute of Engineering and Technology, Chitkara University, Rajpura 140401, India
Neeti Taneja: Noida Institute of Engineering and Technology, Greater Noida 201306, India
Ali Alqahtani: College of Computer Science and Information Systems, Najran University, Najran 61441, Saudi Arabia
M. A. Elmagzoub: College of Computer Science and Information Systems, Najran University, Najran 61441, Saudi Arabia
Asadullah Shaikh: College of Computer Science and Information Systems, Najran University, Najran 61441, Saudi Arabia
Deepika Koundal: School of Computer Science, University of Petroleum & Energy Studies, Dehradun 248007, India

Sustainability, 2022, vol. 14, issue 12, 1-15

Abstract: Internet-of-Things (IoT) networks are witnessing a rapid proliferation of connected devices and mobile terminals each day. The wireless information flow between these massive battery-powered devices has a huge energy burden and will lead to an energy crisis in the near future; thus, there is an urgent search for sustainable energy networks. To offer a sustainable energy solution in order to meet the energy demands of these massive IoT networks, this paper presents a dynamic practical model that enables the efficient management of power resources. Two user-scheduling algorithms, namely, minimum distance scheduling (MDS) and maximum channel gain scheduling (MCS), are proposed; when these algorithms were used alongside a power optimization, they led to improved network efficiency. Further, the network’s performance was measured with parametric variations in the number of access points (APs); the deployment of APs and AP configuration is carried out for different precoding schemes. The impact of spatial correlation and the access to perfect channel state information (CSI) on the spectral efficiency of the system was also evaluated. In the end, the study compares the performance of different power-allocation methods and suggests that the power allocated to a particular user node by an AP can be controlled using the proposed algorithms. It is observed that, as compared to the MDS algorithm, the MCS algorithm results in better spectral efficiency for all the users with fractional power allocation. In addition, each AP assigns a maximum power of 141.7 mW to a user with strong channel conditions with the AP, and a minimum power of 3.1882 mW to the user with the worst channel conditions using centralized PMMSE precoding.

Keywords: massive IoT; sustainable networks; 6G; power optimization; user scheduling (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2022
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