Analysis and Power Scheduling Algorithm in Wireless Powered Communication Networks

doi:10.1109/wimob50308.2020.9253379

Analysis and Power Scheduling Algorithm in Wireless Powered Communication Networks

2020-10-12

0

PRE

AI

DOI：10.1109/wimob50308.2020.9253379

Original

Original request for help

Save

Abstract

En 中文

Wireless powered communication networks (WPCN) which allow an energy source (ES) to wirelessly transfer its power to a wireless device (WD) is becoming a promising technology in modern wireless networks. Besides extending network longevity, WPCN eliminates the need for frequent manual battery replacement or recharging. Even WPCN is a potential solution, how to optimize network lifetime to guarantee network substantiality and reliability is challenging. This problem has not yet been considered carefully in literature. In addition, existing related works do not consider both uplink and downlink traffic which directly impact device lifetime as well as network lifetime. This paper, therefore, deals with the problem of optimizing network lifetime by appropriately scheduling transmitted power from an ES to each WD. To this end, the paper first proposes models for device lifetime and network lifetime. Based on the models, the strategy to optimize network lifetime is derived. The paper then proposes a power scheduling algorithm performed at an ES to maximize network lifetime under several network conditions. The proposed algorithm takes into account bi-directional traffic at each WD. The proposed models and the performance of power scheduling algorithm are verified by simulations. The paper is an useful guideline to assess reliability duration of the network and provides several directions to ensure network reliability and substantiality.

Keywords:

WPCN

power scheduling

optimal network lifetime

Analysis and Power Scheduling Algorithm in Wireless Powered Communication Networks

Abstract

AI Summary

Journal

Organization