Matrix analysis and applied linear algebra
Matrix analysis and applied linear algebra
Multicarrier Techniques for 4G Mobile Communications
Multicarrier Techniques for 4G Mobile Communications
IEEE Transactions on Communications
Low-complexity selected mapping schemes for peak-to-average power ratio reduction in OFDM systems
IEEE Transactions on Signal Processing
An overview of peak-to-average power ratio reduction techniques for multicarrier transmission
IEEE Wireless Communications
Peak-to-average power ratio reduction in OFDM with blind selected pilot tone modulation
IEEE Transactions on Wireless Communications
Frequency domain equalization for single-carrier broadband wireless systems
IEEE Communications Magazine
| Hi-index | 0.00 |
Orthogonal frequency division multiplexing (OFDM) signals have a problem with a high peak-to-average power ratio (PAPR). A distortionless selected mapping (SLM) has been proposed to reduce the PAPR, but a high computational complexity prohibits its application to an OFDM system with a large number of subcarriers. Recently, we proposed OFDM combined with time division multiplexing (OFDM/TDM) using minimum mean square error frequency-domain equalization (MMSE-FDE) to improve the bit error rate (BER) performance of conventional OFDM with a lower PAPR. The PAPR problem, however, cannot be completely eliminated. In this paper, we present an SLM combined with symbol re-mapping for OFDM/TDM using MMSE-FDE. Unlike the conventional OFDM, where SLM is applied over subcarriers in the frequency domain, we exploit both time and frequency dimensions of OFDM/TDM signal to improve the performance with respect to PAPR and BER. A mathematical model for PAPR distribution of OFDM/TDM with SLM is presented to complement the computer simulation results. It is shown that proposed SLM can further reduce the PAPR without sacrificing the BER performance with the same or reduced computational complexity. Copyright © 2010 John Wiley & Sons, Ltd.