TY - GEN
T1 - Low-complexity rotated QAM demapper for the iterative receiver targeting DVB-T2 standard
AU - Fan, You Zhe
AU - Tsui, Chi Ying
PY - 2012
Y1 - 2012
N2 - Gray mapping and signal space diversity (SSD) are adopted in DVB-T2 to achieve better performance and system robustness. However, the traditional maximum a posteriori demapping for Gray mapped SSD signal is complicated for higher order modulation and it is not practical to be used in the iterative receiver structure. In this work, simplified demappers are proposed by approximating the 2-dimensional detection with 1-dimensional detection and compensating the loss due to the correlation between the I and Q components. Simulation results show that the proposed simplified demappers can approach the optimal demapper performance with a much lower complexity.
AB - Gray mapping and signal space diversity (SSD) are adopted in DVB-T2 to achieve better performance and system robustness. However, the traditional maximum a posteriori demapping for Gray mapped SSD signal is complicated for higher order modulation and it is not practical to be used in the iterative receiver structure. In this work, simplified demappers are proposed by approximating the 2-dimensional detection with 1-dimensional detection and compensating the loss due to the correlation between the I and Q components. Simulation results show that the proposed simplified demappers can approach the optimal demapper performance with a much lower complexity.
UR - https://openalex.org/W2026356596
UR - https://www.scopus.com/pages/publications/84878950118
U2 - 10.1109/VTCFall.2012.6399046
DO - 10.1109/VTCFall.2012.6399046
M3 - Conference Paper published in a book
SN - 9781467318815
T3 - IEEE Vehicular Technology Conference
BT - 2012 IEEE Vehicular Technology Conference, VTC Fall 2012 - Proceedings
T2 - 76th IEEE Vehicular Technology Conference, VTC Fall 2012
Y2 - 3 September 2012 through 6 September 2012
ER -