TY - GEN
T1 - Turbo Equalization for Underwater Communication Systems using Rotated Constellations
AU - Arbi, Tarak
AU - Geller, Benoit
AU - Ye, Zi
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023/1/1
Y1 - 2023/1/1
N2 - The available bandwidth of the underwater acoustic channel is severely limited. Therefore, it is of interest to use modulations with high spectral efficiency, such as rotated constellations. These constellations offer better theoretical performance than conventional constellations over fading channels, without reducing the spectral or energy efficiency of the system. However, in practice, when conventional equalization algorithms are employed for a system using rotated constellations, the theoretical gains are not fully achieved. To address this issue, this paper proposes a new turbo equalization algorithm that inherently considers the characteristics of rotated signals and allows for a significant gain compared to conventional methods, as demonstrated by simulations, in particular over a real underwater channel.
AB - The available bandwidth of the underwater acoustic channel is severely limited. Therefore, it is of interest to use modulations with high spectral efficiency, such as rotated constellations. These constellations offer better theoretical performance than conventional constellations over fading channels, without reducing the spectral or energy efficiency of the system. However, in practice, when conventional equalization algorithms are employed for a system using rotated constellations, the theoretical gains are not fully achieved. To address this issue, this paper proposes a new turbo equalization algorithm that inherently considers the characteristics of rotated signals and allows for a significant gain compared to conventional methods, as demonstrated by simulations, in particular over a real underwater channel.
KW - Inter-Symbol Interference (ISI)
KW - Rotated constellations
KW - Signal Space Diversity
KW - Turbo equalization
KW - phase estimation
U2 - 10.1109/OCEANSLimerick52467.2023.10244678
DO - 10.1109/OCEANSLimerick52467.2023.10244678
M3 - Conference contribution
AN - SCOPUS:85173710345
T3 - OCEANS 2023 - Limerick, OCEANS Limerick 2023
BT - OCEANS 2023 - Limerick, OCEANS Limerick 2023
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2023 OCEANS Limerick, OCEANS Limerick 2023
Y2 - 5 June 2023 through 8 June 2023
ER -
