Optimal subchannel and power allocation for multi-cell OFDMA systems

Author

Sung-Yeon Kim ; Jeong-Ahn Kwon ; Jang-Won Lee

Author_Institution

Dept. of Electr. & Electron. Eng., Yonsei Univ., Seoul, South Korea

fYear

2014

fDate

8-11 July 2014

Firstpage

231

Lastpage

232

Abstract

Joint subchannel allocation and power control problems for multi-cell orthogonal frequency-division multiple access (OFDMA) systems have been extensively studied. However, due to the high complexity of the problems, only heuristic approaches are studied instead of the optimal approach for achieving the maximum system capacity. In this paper, we study this problem with a monotonic optimization approach, from the point of the optimal subchannel and power allocation aiming at maximizing the sum-rate of the multi-cell OFDMA system.

Keywords

OFDM modulation; cellular radio; channel allocation; frequency division multiple access; power control; monotonic optimization; multicell OFDMA systems; multicell orthogonal frequency-division multiple access systems; optimal subchannel; power allocation; power control; subchannel allocation; Downlink; Educational institutions; Joints; Optimization; Power control; Resource management; Wireless communication; Multi-cell systems; OFDMA; power control; subchannel allocation; sum-rate maximization;

fLanguage

English

Publisher

ieee

Conference_Titel

Ubiquitous and Future Networks (ICUFN), 2014 Sixth International Conf on

Conference_Location

Shanghai

Type

conf

DOI

10.1109/ICUFN.2014.6876787

Filename

6876787