TY - GEN
T1 - Single carrier FDMA over underwater acoustic channels
AU - Cheng, Xilin
AU - Qu, Fengzhong
AU - Yang, Liuqing
PY - 2011
Y1 - 2011
N2 - Underwater acoustic sensor networks (UWASN) have been attracting growing research interests in recent decades. However, underwater acoustic (UWA) communications suffer from the long propagation delay, the limited bandwidth, multipath, and the Doppler effect. Orthogonal frequency division multiplexing (OFDM) and orthogonal frequency division multiple access (OFDMA) are attractive to UWA communications because of their robustness against frequency selective distortion. Nevertheless, OFDM and OFDMA have several drawbacks: high sensitivity to the frequency offset, large peak-to-average power ratio (PAPR), and subcarrier nulls. Single carrier frequency division multiple access (SC-FDMA) which is a DFT-precoded version of OFDMA has stimulated wide interests in cellular wireless communication systems because of the inherent merits. However, SC-FDMA over UWA channels has not been investigated in the existing literature. In this paper, we apply SC-FDMA to UWA channels and mainly focus on the receiver design of the localized FDMA (LFDMA) scheme. Furthermore, our proposed receiver algorithm is tested using the experimental data recorded from the ACOMM10 experiment. The experimental results show that with multiple hydrophones combined, an average uncoded bit error rate (BER) of 10 -3 can be achieved.
AB - Underwater acoustic sensor networks (UWASN) have been attracting growing research interests in recent decades. However, underwater acoustic (UWA) communications suffer from the long propagation delay, the limited bandwidth, multipath, and the Doppler effect. Orthogonal frequency division multiplexing (OFDM) and orthogonal frequency division multiple access (OFDMA) are attractive to UWA communications because of their robustness against frequency selective distortion. Nevertheless, OFDM and OFDMA have several drawbacks: high sensitivity to the frequency offset, large peak-to-average power ratio (PAPR), and subcarrier nulls. Single carrier frequency division multiple access (SC-FDMA) which is a DFT-precoded version of OFDMA has stimulated wide interests in cellular wireless communication systems because of the inherent merits. However, SC-FDMA over UWA channels has not been investigated in the existing literature. In this paper, we apply SC-FDMA to UWA channels and mainly focus on the receiver design of the localized FDMA (LFDMA) scheme. Furthermore, our proposed receiver algorithm is tested using the experimental data recorded from the ACOMM10 experiment. The experimental results show that with multiple hydrophones combined, an average uncoded bit error rate (BER) of 10 -3 can be achieved.
KW - CFO Compensation
KW - LFDMA
KW - SC-FDMA
KW - Underwater Acoustic Channels
UR - http://www.scopus.com/inward/record.url?scp=84863269749&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84863269749&partnerID=8YFLogxK
U2 - 10.1109/ChinaCom.2011.6158311
DO - 10.1109/ChinaCom.2011.6158311
M3 - Conference contribution
AN - SCOPUS:84863269749
SN - 9781457701016
T3 - Proceedings of the 2011 6th International ICST Conference on Communications and Networking in China, CHINACOM 2011
SP - 1052
EP - 1057
BT - Proceedings of the 2011 6th International ICST Conference on Communications and Networking in China, CHINACOM 2011
T2 - 2011 6th International ICST Conference on Communications and Networking in China, CHINACOM 2011
Y2 - 17 August 2011 through 19 August 2011
ER -