TY - GEN
T1 - An improved signal subspace estimation method and its application to multiuser detection
AU - Xu, B.
AU - Yang, C. Y.
AU - Mao, S. Y.
N1 - Publisher Copyright:
© 2002 IEEE.
PY - 2002
Y1 - 2002
N2 - An improved signal subspace estimation method is proposed and applied to blind multiuser detection. Firstly, a rough signal subspace is estimated from the received signal by direct eigendecomposition or subspace tracking. Then, the estimated signal subspace is modified with the desired user's signature waveform that is generally known. The new multiuser detector based on the improved signal subspace can offer substantial performance improvement over recently proposed multiuser detectors based on signal subspace estimation with a little attendant increase in computational complexity. Moreover, the estimated dimension of the signal subspace can be significantly reduced with little performance reduction when there are some interference signals weaker than the desired signal. Numerical simulation results are provided to support our claims.
AB - An improved signal subspace estimation method is proposed and applied to blind multiuser detection. Firstly, a rough signal subspace is estimated from the received signal by direct eigendecomposition or subspace tracking. Then, the estimated signal subspace is modified with the desired user's signature waveform that is generally known. The new multiuser detector based on the improved signal subspace can offer substantial performance improvement over recently proposed multiuser detectors based on signal subspace estimation with a little attendant increase in computational complexity. Moreover, the estimated dimension of the signal subspace can be significantly reduced with little performance reduction when there are some interference signals weaker than the desired signal. Numerical simulation results are provided to support our claims.
UR - https://www.scopus.com/pages/publications/27744520493
U2 - 10.1109/WCNC.2002.993463
DO - 10.1109/WCNC.2002.993463
M3 - 会议稿件
AN - SCOPUS:27744520493
T3 - IEEE Wireless Communications and Networking Conference, WCNC
SP - 58
EP - 60
BT - IEEE Wireless Communications and Networking Conference, WCNC
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2002 IEEE Wireless Communications and Networking Conference, WCNC 2002
Y2 - 17 March 2002 through 21 March 2002
ER -