Title :
A blind SLM PAPR reduction scheme using cyclic shift in STBC MIMO-OFDM system
Author :
Joo, Hyyun-Seung ; No, Jong-Sein ; Shin, Dng-Joon
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Seoul Nat. Univ., Seoul, South Korea
Abstract :
In this paper, we propose a blind SLM scheme using cyclic shift (BSLM-CS) in STBC MIMO-OFDM. After an OFDM signal sequence in each transmit antenna is cyclically shifted, alternative signal sequences in the proposed scheme are generated by linearly combining OFDM signal sequences using addition and subtraction without the need of the additional IFFT. Therefore, the proposed BSLM-CS scheme has low computational complexity for transmitting the alternative signal sequence with the lowest PAPR. In oder to recover the data at the receiver without side information, the ML decoder for the BSLM-CS scheme can be derived similar to the conventional BSLM scheme. The BER performance of the proposed scheme is not degraded com pared to the conventional SLM scheme with the perfect side information.
Keywords :
MIMO communication; OFDM modulation; blind source separation; communication complexity; error statistics; maximum likelihood decoding; radio receivers; space-time block codes; transmitting antennas; BER performance; BSLM-CS scheme; ML decoder; OFDM signal sequence; STBC MIMO-OFDM system; addition; blind SLM PAPR reduction; computational complexity; cyclic shift; data recovery; receiver; space-time block code; subtraction; transmit antenna; Bit error rate; Peak to average power ratio;
Conference_Titel :
Information and Communication Technology Convergence (ICTC), 2010 International Conference on
Conference_Location :
Jeju
Print_ISBN :
978-1-4244-9806-2
DOI :
10.1109/ICTC.2010.5674679
