TY - GEN
T1 - Effective self-cancellation of intercarrier interference for OFDM underwater acoustic communications
AU - Cheng, Xilin
AU - Wen, Miaowen
AU - Cheng, Xiang
AU - Yang, Liuqing
AU - Xu, Zhengyuan
PY - 2013
Y1 - 2013
N2 - Orthogonal frequency division multiplexing (OFDM) techniques are attractive for underwater acoustic (UWA) communications due to their robustness against large multipath spread. However, OFDM systems in UWA channels suffer from intercarrier interference (ICI) caused by the Doppler effect. In this paper, we propose an effective mirror-mapping-based ICI self-cancellation method in OFDM UWA communications. Theoretical analyses and numerical results show that the proposed mirror-mapping-based ICI self-cancellation schemes can effectively reduce the carrier-to-interference power ratio (CIR) in comparison with the plain OFDM scheme in the additive white Gaussian noise (AWGN) channel with carrier frequency offset (CFO). To demonstrate their benefits for OFDM UWA communications, the mirror-mapping-based ICI self-cancellation schemes were tested in a recent sea experiment, conducted in Taiwan in May 2013. The decoding results show that the mirror-mapping-based ICI self-cancellation schemes improve the BER performance of the OFDM system considerably in UWA channels.
AB - Orthogonal frequency division multiplexing (OFDM) techniques are attractive for underwater acoustic (UWA) communications due to their robustness against large multipath spread. However, OFDM systems in UWA channels suffer from intercarrier interference (ICI) caused by the Doppler effect. In this paper, we propose an effective mirror-mapping-based ICI self-cancellation method in OFDM UWA communications. Theoretical analyses and numerical results show that the proposed mirror-mapping-based ICI self-cancellation schemes can effectively reduce the carrier-to-interference power ratio (CIR) in comparison with the plain OFDM scheme in the additive white Gaussian noise (AWGN) channel with carrier frequency offset (CFO). To demonstrate their benefits for OFDM UWA communications, the mirror-mapping-based ICI self-cancellation schemes were tested in a recent sea experiment, conducted in Taiwan in May 2013. The decoding results show that the mirror-mapping-based ICI self-cancellation schemes improve the BER performance of the OFDM system considerably in UWA channels.
KW - ICI self-cancellation algorithms
KW - Mirror-mapping
KW - OFDM
KW - Underwater Acoustic communications
UR - http://www.scopus.com/inward/record.url?scp=84893467041&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84893467041&partnerID=8YFLogxK
U2 - 10.1145/2532378.2532399
DO - 10.1145/2532378.2532399
M3 - Conference contribution
AN - SCOPUS:84893467041
SN - 9781450325844
T3 - Proceedings of the 8th ACM International Conference on Underwater Networks and Systems, WUWNet 2013
BT - Proceedings of the 8th ACM International Conference on Underwater Networks and Systems, WUWNet 2013
T2 - 8th ACM International Conference on Underwater Networks and Systems, WUWNet 2013
Y2 - 11 November 2013 through 13 November 2013
ER -