TY - JOUR
T1 - Quasi-cyclic low-density parity-check coded multiband-OFDM UWB systems
AU - Kim, Sang Min
AU - Tang, Jun
AU - Parhi, Keshab K
PY - 2005
Y1 - 2005
N2 - Multi-band orthogonal frequency division multiplexing (MB-OFDM) has been considered as a prominent solution for ultra wideband (UWB) technology supporting high speed, short range and point-to-point wireless communications. In this paper, we design quasi-cyclic (QC) low-density parity-check (LDPC) codes that are modified from implementation-oriented (IO) LDPC codes and examine their capability and suitability for MB-OFDM systems in terms of performance and implementation complexity. We evaluate the performance of QC-LDPC codes over MB-OFDM systems for four different data rate. By simulations, it is shown that the transmission distance of QC-LDPC coded MB-OFDM systems can increase by 29%-73% compared with that of convolutional codes. In addition, it is shown that QC-LDPC codes can be realized by a rate-configurable encoder and decoder.
AB - Multi-band orthogonal frequency division multiplexing (MB-OFDM) has been considered as a prominent solution for ultra wideband (UWB) technology supporting high speed, short range and point-to-point wireless communications. In this paper, we design quasi-cyclic (QC) low-density parity-check (LDPC) codes that are modified from implementation-oriented (IO) LDPC codes and examine their capability and suitability for MB-OFDM systems in terms of performance and implementation complexity. We evaluate the performance of QC-LDPC codes over MB-OFDM systems for four different data rate. By simulations, it is shown that the transmission distance of QC-LDPC coded MB-OFDM systems can increase by 29%-73% compared with that of convolutional codes. In addition, it is shown that QC-LDPC codes can be realized by a rate-configurable encoder and decoder.
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U2 - 10.1109/ISCAS.2005.1464525
DO - 10.1109/ISCAS.2005.1464525
M3 - Conference article
AN - SCOPUS:33749076857
SN - 0271-4310
SP - 65
EP - 68
JO - Proceedings - IEEE International Symposium on Circuits and Systems
JF - Proceedings - IEEE International Symposium on Circuits and Systems
M1 - 1464525
T2 - IEEE International Symposium on Circuits and Systems 2005, ISCAS 2005
Y2 - 23 May 2005 through 26 May 2005
ER -