TY - GEN
T1 - Constant rate adaptive modulation with selection transmit diversity for broadband OFDM systems
AU - Qiu, Yonghong
AU - Pan, Ya Han
AU - Cao, Zhigang
AU - Letaief, Khaled Ben
PY - 2003
Y1 - 2003
N2 - Adaptive modulation combined with transmit diversity can achieve further increases in system's capacity and bandwidth efficiency, as well as in QoS improvement in conventional OFDM systems. In this paper, we propose a constant rate adaptive modulation with selection transmit diversity for broadband OFDM wireless systems. By combining the adaptive modulation with the adaptive selection diversity according to the characteristics of the channel on each sub-carrier, the transmit diversity obtained by antennas selection is further maximized through adaptive bit assignment and power assignment on each sub-carrier under the constraint of power and overall bit rate. As a result, the proposed system can achieve better performance compared to that of the conventional selection transmit diversity based OFDM systems without adaptive modulation and conventional adaptive modulation based OFDM systems without selection transmit diversity over multipath fading channels.
AB - Adaptive modulation combined with transmit diversity can achieve further increases in system's capacity and bandwidth efficiency, as well as in QoS improvement in conventional OFDM systems. In this paper, we propose a constant rate adaptive modulation with selection transmit diversity for broadband OFDM wireless systems. By combining the adaptive modulation with the adaptive selection diversity according to the characteristics of the channel on each sub-carrier, the transmit diversity obtained by antennas selection is further maximized through adaptive bit assignment and power assignment on each sub-carrier under the constraint of power and overall bit rate. As a result, the proposed system can achieve better performance compared to that of the conventional selection transmit diversity based OFDM systems without adaptive modulation and conventional adaptive modulation based OFDM systems without selection transmit diversity over multipath fading channels.
UR - https://openalex.org/W2119351701
UR - https://www.scopus.com/pages/publications/34547375907
U2 - 10.1109/PIMRC.2003.1264368
DO - 10.1109/PIMRC.2003.1264368
M3 - Conference Paper published in a book
SN - 0780378229
SN - 9780780378223
T3 - IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC
SP - 722
EP - 726
BT - PIMRC2003 - 14th IEEE 2003 International Symposium on Personal, Indoor and Mobile Radio Communications, Proceedings
T2 - 14th IEEE 2003 International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC2003
Y2 - 7 September 2003 through 10 September 2003
ER -