2024-03-28T08:41:05Z
https://soar-ir.repo.nii.ac.jp/oai
oai:soar-ir.repo.nii.ac.jp:00012307
2022-12-14T04:05:53Z
1221:1222
Resource Block Assignment to Reduce Peak to Average Power Ratio in Multi-User OFDM
Takyu, Osamu
Umeda, Yohtaro
Sasamori, Fumihito
Handa, Shiro
multiuser OFDM
PAPR
resource block assignment
This paper proposes the assignment of resource blocks (RBs) to reduce the peak-to-average power ratio (PAPR) of orthogonal frequency division multiplexing (OFDM) in a multi-user OFDM system. This system ranks the users according to the channel state information (CSI) for RB assignment. In our proposed technique, an RB is assigned to either the first- or second-ranked mobile station (MS) to minimize the PAPR of the OFDM signal. While this process reduces the PAPR, the throughput is also reduced because of the user diversity gain loss. A PAPR-throughput tradeoff is then established. Theoretical analyses and computer simulations confirm that when the number of MSs becomes large, the PAPR-throughput tradeoff is eased because of the minimal effect of the diversity gain loss. Therefore, significant PAPR reduction is achieved with only a slight degradation in the throughput.
Article
IEICE TRANSACTIONS ON COMMUNICATIONS. E97B(8):1689-1700 (2014)
journal article
IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG
2014-08
application/pdf
IEICE TRANSACTIONS ON COMMUNICATIONS
8
E97B
1689
1700
1745-1345
AA11226510
https://soar-ir.repo.nii.ac.jp/record/12307/files/Resource_Block_Assignment.pdf
eng
http://search.ieice.org/
http://search.ieice.org/
10.1587/transcom.E97.B.1689
https://doi.org/10.1587/transcom.E97.B.1689
Copyright © 2014 The Institute of Electronics, Information and Communication Engineers