TY - GEN
T1 - OFDM-IDMA communications over underwater acoustic channels
AU - Dang, Jian
AU - Qu, Fengzhong
AU - Zhang, Zaichen
AU - Yang, Liuqing
PY - 2011
Y1 - 2011
N2 - The combination of orthogonal frequency division multiplexing (OFDM) and interleave division multiple access (IDMA), known as OFDM-IDMA, has been proposed as a promising multiple access scheme for wireless communications due to its low decoding complexity and potential of achieving high spectral efficiency. However, most of the work on OFDM-IDMA is in radio frequency (RF) communications scenarios and based on computer simulations. In this paper, we propose OFDM-IDMA over underwater acoustic (UWA) channels with experimental results. We also extend the original OFDM-IDMA to a multiple hydrophones scenario to improve the bit error rate (BER) performance. Experimental results show that with multiple hydrophones, the coded BER performance of OFDM-IDMA approaches zero after only a few iterations, validating the feasibility of our proposed approach over UWA channels.
AB - The combination of orthogonal frequency division multiplexing (OFDM) and interleave division multiple access (IDMA), known as OFDM-IDMA, has been proposed as a promising multiple access scheme for wireless communications due to its low decoding complexity and potential of achieving high spectral efficiency. However, most of the work on OFDM-IDMA is in radio frequency (RF) communications scenarios and based on computer simulations. In this paper, we propose OFDM-IDMA over underwater acoustic (UWA) channels with experimental results. We also extend the original OFDM-IDMA to a multiple hydrophones scenario to improve the bit error rate (BER) performance. Experimental results show that with multiple hydrophones, the coded BER performance of OFDM-IDMA approaches zero after only a few iterations, validating the feasibility of our proposed approach over UWA channels.
UR - http://www.scopus.com/inward/record.url?scp=84863081425&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84863081425&partnerID=8YFLogxK
U2 - 10.1109/MILCOM.2011.6127704
DO - 10.1109/MILCOM.2011.6127704
M3 - Conference contribution
AN - SCOPUS:84863081425
SN - 9781467300810
T3 - Proceedings - IEEE Military Communications Conference MILCOM
SP - 418
EP - 423
BT - 2010 Military Communications Conference, MILCOM 2010
T2 - 2011 IEEE Military Communications Conference, MILCOM 2011
Y2 - 7 November 2011 through 10 November 2011
ER -