Pilot design for MIMO OFDM systems with virtual carriers
IEEE Transactions on Signal Processing
A practical scheme for frequency offset estimation in MIMO-OFDM systems
EURASIP Journal on Wireless Communications and Networking - Special issue on synchronization in wireless communications
Parameter Estimation for Correlated MIMO Channels with Frequency-Selective Fading
Wireless Personal Communications: An International Journal
Joint estimation of I/Q imbalance, CFO and channel response for MIMO OFDM systems
IEEE Transactions on Communications
An average Cramer-Rao bound for frequency offset estimation in frequency-selective fading channels
IEEE Transactions on Wireless Communications
Transceiver design for dual-hop nonregenerative MIMO-OFDM relay systems under channel uncertainties
IEEE Transactions on Signal Processing
EURASIP Journal on Wireless Communications and Networking
| Hi-index | 35.69 |
This paper addresses the problem of training design for frequency-selective channel and carrier frequency-offset (CFO) estimation in single- and multiple-antenna systems under different energy-distribution constraints. The performance metric used here is the Cramer-Rao bound (CRB). The paper first addresses the CFO-free case and then generalizes the results to include CFO-corrupted scenarios. Training sequences are designed that render the CRB for the CFO independent of the channel zeros. The proposed training designs also facilitate simple implementation of the maximum-likelihood CFO and channel estimators. Simulation results illustrate the merits of the proposed training designs