TY - GEN
T1 - ToA estimation for MB-OFDM UWB by suppressing energy leakage
AU - Xu, Huilin
AU - Yang, Liuqing
PY - 2010
Y1 - 2010
N2 - In this paper, we estimate the time-of-arrival (ToA) of wireless channels by using the widely adopted equally-spaced channel estimator for the multi-band orthogonal frequencydivision multiplexing (MB-OFDM) ultrawide-band (UWB) system. By suppressing the energy leakage due to the imperfect sampling of the leading channel paths, a novel ToA estimator is proposed for the MB-OFDM UWB system. This ToA estimator is evaluated and compared with the space alternating generalized expectation maximization (SAGE) algorithm in IEEE 802.15.4a UWB channels. Simulation results show that the proposed ToA estimator performs well in all channel models and outperforms SAGE by directly locating the first channel path.
AB - In this paper, we estimate the time-of-arrival (ToA) of wireless channels by using the widely adopted equally-spaced channel estimator for the multi-band orthogonal frequencydivision multiplexing (MB-OFDM) ultrawide-band (UWB) system. By suppressing the energy leakage due to the imperfect sampling of the leading channel paths, a novel ToA estimator is proposed for the MB-OFDM UWB system. This ToA estimator is evaluated and compared with the space alternating generalized expectation maximization (SAGE) algorithm in IEEE 802.15.4a UWB channels. Simulation results show that the proposed ToA estimator performs well in all channel models and outperforms SAGE by directly locating the first channel path.
UR - http://www.scopus.com/inward/record.url?scp=79951592646&partnerID=8YFLogxK
U2 - 10.1109/MILCOM.2010.5680337
DO - 10.1109/MILCOM.2010.5680337
M3 - Conference Paper published in a book
AN - SCOPUS:79951592646
SN - 9781424481804
T3 - Proceedings - IEEE Military Communications Conference MILCOM
SP - 2381
EP - 2386
BT - 2010 IEEE Military Communications Conference, MILCOM 2010
T2 - 2010 IEEE Military Communications Conference, MILCOM 2010
Y2 - 31 October 2010 through 3 November 2010
ER -