TY - GEN
T1 - A low-complexity 2D signal space diversity solution for future broadcasting systems
AU - Yang, Jianxiao
AU - Wan, Kai
AU - Geller, Benoit
AU - Abdel Nour, Charbel
AU - Rioul, Olivier
AU - Douillard, Catherine
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2015/9/9
Y1 - 2015/9/9
N2 - DVB-T2 was the first industrial standard deploying rotated and cyclic Q delayed (RCQD) modulation to improve performance over fading channels. This enables important gains compared to conventional quadrature amplitude modulations (QAM) under severe channel conditions. However, the corresponding demodulation complexity still prevents its use for wider applications. This paper proposes several rotation angles for different QAM constellations and a corresponding low-complexity detection method. Results show that the proposed solution simplifies both the transmitter and the receiver with often better performance than the proposed angles in DVB-T2. Compared with the lowest complexity demappers currently used in DVB-T2, the proposed solution achieves an additional reduction by more than 60%.
AB - DVB-T2 was the first industrial standard deploying rotated and cyclic Q delayed (RCQD) modulation to improve performance over fading channels. This enables important gains compared to conventional quadrature amplitude modulations (QAM) under severe channel conditions. However, the corresponding demodulation complexity still prevents its use for wider applications. This paper proposes several rotation angles for different QAM constellations and a corresponding low-complexity detection method. Results show that the proposed solution simplifies both the transmitter and the receiver with often better performance than the proposed angles in DVB-T2. Compared with the lowest complexity demappers currently used in DVB-T2, the proposed solution achieves an additional reduction by more than 60%.
KW - Computational Complexity
KW - DVB-T2
KW - Fading Channel
KW - Max-Log
KW - Quadrature Amplitude Modulations (QAM)
KW - Rotated and Cyclic Q Delayed (RCQD) Modulations
KW - Signal Space Diversity (SSD)
UR - https://www.scopus.com/pages/publications/84953733537
U2 - 10.1109/ICC.2015.7248744
DO - 10.1109/ICC.2015.7248744
M3 - Conference contribution
AN - SCOPUS:84953733537
T3 - IEEE International Conference on Communications
SP - 2762
EP - 2767
BT - 2015 IEEE International Conference on Communications, ICC 2015
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - IEEE International Conference on Communications, ICC 2015
Y2 - 8 June 2015 through 12 June 2015
ER -