An energy-efficient maximization based path selection and resource allocation scheme in OFDMA-based two-hop relay cellular networks. | [Journal of Theoretical and Applied Information Technology • 2012]

Author(s):

1. Gaoyong Huang: School of Information Science & Technology, Southwest Jiaotong University, Chengdu 610031, Sichuan, China; Department of Computer and Communication Engineering, Emei Campus, Southwest Jiaotong University, Emei 614202, Chengdu, China

2. Xuming Fang: School of Information Science & Technology, Southwest Jiaotong University, Chengdu 610031, Sichuan, China; Department of Computer and Communication Engineering, Emei Campus, Southwest Jiaotong University, Emei 614202, Chengdu, China

3. Bo Xiao: Department of Computer and Communication Engineering, Emei Campus, Southwest Jiaotong University, Emei 614202, Chengdu, China

Abstract:

In this paper, we investigate the energy efficiency problem in downlink transmission of the OFDMA-based two-hop relay cellular networks. Most of the researches on energy efficiency focus on the transmission in traditional cellular system, especially for the uplink transmission. Our objective is to maximize the system energy efficiency for the downlink transmission of the two-hop relay cellular system. We consider both the circuit power and transmission power consumption, and propose a two-step suboptimal path selection and subchannel allocation scheme to maximize the system energy efficiency. The simulation results show that our proposed scheme have good performance in energy efficiency.

Page(s): 627-633

DOI: DOI not available

Published: Journal: Journal of Theoretical and Applied Information Technology, Volume: 45, Issue: 2, Year: 2012

Keywords:

Keywords are not available for this article.

References:

References are not available for this document.

Citations

Citations are not available for this document.

Citations

Downloads

Views