Multiplexing two information sources over fading channels: a cross-layer design perspective
Signal Processing - Special section: Advances in signal processing-assisted cross-layer designs
Optimal training for time-selective wireless fading channels using cutoff rate
EURASIP Journal on Applied Signal Processing
Capacity of MIMO-OFDM with pilot-aided channel estimation
EURASIP Journal on Wireless Communications and Networking
A Design of Segmented Data Rates for Recurrent Channel Estimation
Wireless Personal Communications: An International Journal
Pilot design for MIMO OFDM systems with virtual carriers
IEEE Transactions on Signal Processing
Optimal Pilot Power Allocation for OFDM Systemswith Transmitter and Receiver IQ Imbalances
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
Pilot design of MIMO-OFDM with beamforming
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
On the Achievable Rate for Wideband Channels with Estimated CSI
Journal of Signal Processing Systems
Wireless Personal Communications: An International Journal
Hi-index | 754.84 |
The location, number, and power of pilot symbols embedded in multicarrier block transmissions over rapidly fading channels, are important design parameters affecting not only channel estimation performance, but also channel capacity. Considering orthogonal frequency-division multiplexing (OFDM) systems with decoupled information-bearing symbols from pilot symbols transmitted over wireless frequency-selective Rayleigh-fading channels, we show that equispaced and equipowered pilot symbols are optimal in terms of minimizing the mean-square channel estimation error. We also design the number of pilots, and the power distributed between information bearing and pilot symbols, using as criterion a lower bound on the average capacity. Numerical results corroborate our theoretical findings.