TY - GEN
T1 - A time-domain ICI canceller using modulation order increasing and repetition coding in OFDM
AU - Seo, Jeong Wook
AU - Jang, Seung Hun
AU - Jeon, Won Gi
AU - Paik, Jong Ho
AU - Kang, Min Goo
AU - Kim, Dong Ku
PY - 2007
Y1 - 2007
N2 - In this paper, an enhanced time-domain cancellation method is proposed for inter-carrier interference (ICI) reduction in OFDM systems. The conventional time-domain cancellation does not work well in deep fades. In order to supplement the conventional method, the simple repetition (de-)coding and the modulation order increasing are employed in the time-domain cancellation. The approximated repetition decoding provides reliable symbols in the regeneration operation, and the increased modulation order maintains the spectral efficiency. Simulation results indicate that the proposed method using 16QAM significantly improves the BER performance compared to the conventional method using QPSK, while maintains the spectral efficiency. Moreover, the proposed method using 64QAM concurrently improves both the BER performance and the spectral efficiency.
AB - In this paper, an enhanced time-domain cancellation method is proposed for inter-carrier interference (ICI) reduction in OFDM systems. The conventional time-domain cancellation does not work well in deep fades. In order to supplement the conventional method, the simple repetition (de-)coding and the modulation order increasing are employed in the time-domain cancellation. The approximated repetition decoding provides reliable symbols in the regeneration operation, and the increased modulation order maintains the spectral efficiency. Simulation results indicate that the proposed method using 16QAM significantly improves the BER performance compared to the conventional method using QPSK, while maintains the spectral efficiency. Moreover, the proposed method using 64QAM concurrently improves both the BER performance and the spectral efficiency.
UR - http://www.scopus.com/inward/record.url?scp=34547340208&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=34547340208&partnerID=8YFLogxK
U2 - 10.1109/VETECS.2007.479
DO - 10.1109/VETECS.2007.479
M3 - Conference contribution
AN - SCOPUS:34547340208
SN - 1424402662
SN - 9781424402663
T3 - IEEE Vehicular Technology Conference
SP - 2320
EP - 2323
BT - 2007 IEEE 65th Vehicular Technology Conference - VTC2007-Spring
T2 - 2007 IEEE 65th Vehicular Technology Conference - VTC2007-Spring
Y2 - 22 April 2007 through 25 April 2007
ER -