TY - GEN
T1 - Clipping error resilience for peak power-constrained DMT transmission via implicit frequency domain redundancy
AU - Kliewer, Jörg
AU - Karp, Tanja
PY - 2003
Y1 - 2003
N2 - In this paper we present a new error correction approach for a simple peak-to-average power ratio (PAR) reduction scheme for discrete multi-tone (DMT) systems based on coefficient clipping. The proposed method utilizes existing or intentionally placed redundancy in the frequency domain in the form of unused subcarriers. Compared to existing PAR reduction algorithms, all signal processing is performed at the receiver after the transmit signal has been simply clipped to a desired maximum amplitude at the front end of the transmitter. The introduced frequency-domain redundancy allows to consider each output vector of the IDFT in the DMT transmitter as codeword of a Bose-Chaudhuri-Hocquenghem (BCH) block code over the field of real numbers. The decoding operation is carried out by a low-complexity linear reconstruction. Simulation results for noisy transmission show that by using the proposed method clipping does not lead to significant errors in the received data if a reasonable amount of redundancy is provided.
AB - In this paper we present a new error correction approach for a simple peak-to-average power ratio (PAR) reduction scheme for discrete multi-tone (DMT) systems based on coefficient clipping. The proposed method utilizes existing or intentionally placed redundancy in the frequency domain in the form of unused subcarriers. Compared to existing PAR reduction algorithms, all signal processing is performed at the receiver after the transmit signal has been simply clipped to a desired maximum amplitude at the front end of the transmitter. The introduced frequency-domain redundancy allows to consider each output vector of the IDFT in the DMT transmitter as codeword of a Bose-Chaudhuri-Hocquenghem (BCH) block code over the field of real numbers. The decoding operation is carried out by a low-complexity linear reconstruction. Simulation results for noisy transmission show that by using the proposed method clipping does not lead to significant errors in the received data if a reasonable amount of redundancy is provided.
UR - http://www.scopus.com/inward/record.url?scp=84904277911&partnerID=8YFLogxK
U2 - 10.1109/ISSPA.2003.1224893
DO - 10.1109/ISSPA.2003.1224893
M3 - Conference contribution
AN - SCOPUS:84904277911
SN - 0780379462
SN - 9780780379466
T3 - Proceedings - 7th International Symposium on Signal Processing and Its Applications, ISSPA 2003
SP - 379
EP - 382
BT - Proceedings - 7th International Symposium on Signal Processing and Its Applications, ISSPA 2003
PB - IEEE Computer Society
T2 - 7th International Symposium on Signal Processing and Its Applications, ISSPA 2003
Y2 - 1 July 2003 through 4 July 2003
ER -