“…W ITH wireless devices becoming ubiquitous and carrying out various applications, wireless powered communication network (WPCN) has emerged as a solution to the problem of powering of energy constrained devices [1]. The user association and time allocation in a WPCN were jointly optimized by adopting the α-fair utility to maximize the sum, max-min, and proportional fairness rate in [2]. In [3], the total effective throughput was maximized by optimizing the tradeoff between the transmission time and packet error rate of a WPCN while meeting the effective-amount-of-information requirements.…”