Adaptive filter theory (3rd ed.)
Adaptive filter theory (3rd ed.)
Mobile Channel Characteristics
Mobile Channel Characteristics
Time-domain and frequency-domain per-tone equalization for OFDM over doubly selective channels
Signal Processing - Signal processing in communications
Time-Variant Channel Estimation Using Discrete Prolate Spheroidal Sequences
IEEE Transactions on Signal Processing
Karhunen-Loeve expansion of the WSSUS channel output and its application to efficient simulation
IEEE Journal on Selected Areas in Communications
| Hi-index | 0.00 |
To describe joint time-and frequency-selective (doubly-selective) channels in mobile broadband wireless communications, we propose to use the finite parameter model based on the same Bessel functions for each tap (Bessel model). An expression of channel estimation mean squared error (MSE) based on the finite parameter models in Orthogonal Frequency Division Multiplexing (OFDM) systems is derived. Then, our Bessel model is compared with commonly used finite parameter models in terms of the channel estimation MSE. Even if the channel taps have different channel correlations and some of the taps do not coincide with the Bessel function, the channel estimation MSE of the Bessel model is shown to be comparable or outperform existing models as validated by Monte-Carlo simulations over an ensemble of channels in typical urban and suburban environments.