TY - GEN
T1 - Performance and detection of interleaved OFDM-based transform domain communication system in multi-user cognitive radio context
AU - Han, Chuan
AU - Wang, Jun
AU - Li, Shaoqian
PY - 2007
Y1 - 2007
N2 - Bit error rate (BER) performance of the interleaved orthogonal frequency division multiplexing (OFDM) - based transform domain communication system (TDCS) in multi-user cognitive radio context is analyzed in this paper. For the conventional detection scheme, which simply deals with the interference due to other users as noises, an approximate BER expression and a lower bound are derived in the additive white Gaussian noise (AWGN) channel. Numerical results show that the approximate formula matches the simulated results and the lower bound serves as a very tight bound. Further, an enhanced multi-user detection algorithm based on successive interference cancellation with statistic ordering is proposed for the interleaved OFDM-based TDCS in the multipath fading channel. Its performance advantage over the single user detection is proved through simulations.
AB - Bit error rate (BER) performance of the interleaved orthogonal frequency division multiplexing (OFDM) - based transform domain communication system (TDCS) in multi-user cognitive radio context is analyzed in this paper. For the conventional detection scheme, which simply deals with the interference due to other users as noises, an approximate BER expression and a lower bound are derived in the additive white Gaussian noise (AWGN) channel. Numerical results show that the approximate formula matches the simulated results and the lower bound serves as a very tight bound. Further, an enhanced multi-user detection algorithm based on successive interference cancellation with statistic ordering is proposed for the interleaved OFDM-based TDCS in the multipath fading channel. Its performance advantage over the single user detection is proved through simulations.
KW - Cognitive radio
KW - Multi-user detection
KW - Ordered successive interference cancellation
KW - Transform domain communication system
UR - https://www.scopus.com/pages/publications/51349146158
U2 - 10.1109/CROWNCOM.2007.4549812
DO - 10.1109/CROWNCOM.2007.4549812
M3 - 会议稿件
AN - SCOPUS:51349146158
SN - 1424408156
SN - 9781424408153
T3 - Proceedings of the 2nd International Conference on Cognitive Radio Oriented Wireless Networks and Communications, CrownCom
SP - 285
EP - 290
BT - Proceedings of the 2nd International Conference on Cognitive Radio Oriented Wireless Networks and Communications, CrownCom
T2 - 2nd International Conference on Cognitive Radio Oriented Wireless Networks and Communications, CrownCom
Y2 - 1 August 2007 through 3 August 2007
ER -