Optimal Time Allocation in Multi-Cell Wireless Powered Communication Networks

Autor: Chunlong He, Jiaqian Liang, Gongbin Qian, Chongtao Guo, Daquan Feng
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: IEEE Access, Vol 7, Pp 26519-26526 (2019)
Druh dokumentu: article
ISSN: 2169-3536
DOI: 10.1109/ACCESS.2018.2881428
Popis: This paper focuses on time allocation to maximize the minimum throughput and sum-throughput of all users in a multi-cell wireless powered communication network (WPCN). Since interference of multi-cell WPCN is difficult to be calculated, we consider a multi-cell WPCN with load coupling and long-term average interference at all hybrid access points. The problems of maximizing the minimum throughput and sum-throughput are non-convex. First, two efficient optimization approaches are proposed to transform them into convex ones. As the max-min fairness throughput scheme cares more about the worst-case user, the doubly near-far problem can be addressed by the minimum throughput maximation. We also demonstrate the effectiveness of the proposed approaches through numerical analysis.
Databáze: Directory of Open Access Journals