By Topic

A new selected mapping scheme without additional IFFT operations in OFDM systems

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Soobum Cho ; Dept. of Electron. & Comput. Eng., Hanyang Univ., Seoul, South Korea ; Sang Kyu Park

Selected mapping (SLM) is an efficient peak-toaverage power ratio (PAPR) reduction scheme without signal distortion in orthogonal frequency division multiplexing (OFDM) systems. Therefore, it can be applied to mobile consumer electronics that are sensitive to high PAPR because of the limitation of the linear area of a power amplifier. However, enormous inverse fast Fourier transforms (IFFTs) are needed for the sufficient PAPR reduction performance, which cause the mobile devices with SLM scheme to become quite complex and reduce battery power consumption. In this paper, we propose a new SLM scheme that replaces the additional IFFT operations with a conversion of the other candidate OFDM signal. Simulation results show that the proposed scheme significantly reduces the computational complexity, while it obtains the better PAPR reduction performance than the dummy sequence insertion (DSI)-partial transmit sequence (PTS) scheme1.

Published in:

Consumer Electronics, IEEE Transactions on  (Volume:57 ,  Issue: 4 )