959 citations · 1.9k across the 31 of their papers we have counts for
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Doppler Spread Estimation by Tracking the Delay-Subspace for OFDM Systems in Doubly Selective Fading Channels
Xiaochuan Zhao, Tao Peng, Ming Yang +1
A novel maximum Doppler spread estimation algorithm for OFDM systems with comb-type pilot pattern is presented in this paper. By tracking the drifting delay subspace of time-varyin…
On the Cramer-Rao Lower Bound for Spatial Correlation Matrices of Doubly Selective Fading Channels for MIMO OFDM Systems
Xiaochuan Zhao, Tao Peng, Ming Yang +1
The analytic expression of CRLB and the maximum likelihood estimator for spatial correlation matrices in time-varying multipath fading channels for MIMO OFDM systems are reported i…
On the Cramer-Rao Lower Bound for Frequency Correlation Matrices of Doubly Selective Fading Channels for OFDM Systems
Xiaochuan Zhao, Ming Yang, Tao Peng +1
The analytic expression of CRLB and the maximum likelihood estimator for the sample frequency correlation matrices in doubly selective fading channels for OFDM systems are reported…
Doppler Spread Estimation by Subspace Tracking for OFDM Systems
Xiaochuan Zhao, Tao Peng, Ming Yang +1
This paper proposes a novel maximum Doppler spread estimation algorithm for OFDM systems with the comb-type pilot pattern. By tracking the drifting delay subspace of the multipath…
Parametric Channel Estimation by Exploiting Hopping Pilots in Uplink OFDMA
Xiaochuan Zhao, Tao Peng, Wenbo Wang
This paper proposes a parametric channel estimation algorithm applicable to uplink of OFDMA systems with pseudo-random subchannelization. It exploits the hopping pilots to facilita…
Robust Linear Processing for Downlink Multiuser MIMO System With Imperfectly Known Channel
Pengfei Ma, Xiaochuan Zhao, Mugen Peng +1
This paper proposes a roust downlink multiuser MIMO scheme that exploits the channel mean and antenna correlations to alleviate the performance penalty due to the mismatch between…