TY - GEN
T1 - On frequency domain doppler diversity using basis expansion model and EM-based algorithms in CDMA systems
AU - Wang, Tianqi
AU - Li, Cheng
AU - Chen, Hsiao Hwa
AU - Guizani, Mohsen
PY - 2007
Y1 - 2007
N2 - In this paper, we propose an algorithm for frequency domain adaptive Doppler shift estimation in the presence of multiple Doppler subpaths in DS-CDMA systems. By modeling doubly selective channel with a basis expansion model (BEM), the proposed method works based on Expectation-Maximization (EM) algorithm and can accurately estimate Doppler shifts. A complete Cramer-Rao Lower Bound (CRLB) analysis of the estimation algorithms is also provided.
AB - In this paper, we propose an algorithm for frequency domain adaptive Doppler shift estimation in the presence of multiple Doppler subpaths in DS-CDMA systems. By modeling doubly selective channel with a basis expansion model (BEM), the proposed method works based on Expectation-Maximization (EM) algorithm and can accurately estimate Doppler shifts. A complete Cramer-Rao Lower Bound (CRLB) analysis of the estimation algorithms is also provided.
UR - https://www.scopus.com/pages/publications/39349106839
UR - https://www.scopus.com/pages/publications/39349106839#tab=citedBy
U2 - 10.1109/GLOCOM.2007.842
DO - 10.1109/GLOCOM.2007.842
M3 - Conference contribution
AN - SCOPUS:39349106839
SN - 1424410436
SN - 9781424410439
T3 - GLOBECOM - IEEE Global Telecommunications Conference
SP - 4429
EP - 4433
BT - IEEE GLOBECOM 2007 - 2007 IEEE Global Telecommunications Conference, Proceedings
T2 - 50th Annual IEEE Global Telecommunications Conference, GLOBECOM 2007
Y2 - 26 November 2007 through 30 November 2007
ER -