標題: | Joint Sequence Design for Robust Channel Estimation and PAPR Reduction for MIMO-OFDM Systems |
作者: | Chiang, Chin-Te Fung, Carrson C. 電子工程學系及電子研究所 Department of Electronics Engineering and Institute of Electronics |
關鍵字: | MIMO-OFDM;PAPR;superimposed sequence;channel estimation;affine precoder |
公開日期: | 1-十月-2013 |
摘要: | A joint superimposed sequence design, known as Superimposed sequence for PAPR Reduction, or SIPR, using per-tone affine pre-coding technique is proposed to jointly estimate MIMO-OFDM channels and reduce the peak-to-average power ratio (PAPR) for MIMO-OFDM systems. The proposed technique optimizes the trade-off between BER, MSE of the channel estimate, and PAPR reduction performance. Moreover, it does not require side information to be transmitted for the removal of the sequence at the receiver, and the transmit redundancy can be as small as 1 symbol/subcarrier. The superimposed sequence is designed by solving a convex quadratically constrained quadratic programming problem and has a computational complexity comparable to previous technique using linear programming. It is shown that SIPR can be regarded as a generalization of the popular tone reservation (TR) technique, and thus, is able to outperform TR in terms PAPR reduction performance, with less transmit overhead. Simulation results and transmit redundancy analysis of SIPR and TR are shown to illustrate the efficacy of the proposed scheme. |
URI: | http://dx.doi.org/10.1587/transcom.E96.B.2693 http://hdl.handle.net/11536/23064 |
ISSN: | 0916-8516 |
DOI: | 10.1587/transcom.E96.B.2693 |
期刊: | IEICE TRANSACTIONS ON COMMUNICATIONS |
Volume: | E96B |
Issue: | 10 |
起始頁: | 2693 |
結束頁: | 2702 |
顯示於類別: | 會議論文 |