Channel tracking for space-time block coded systems using particle filtering
2002 14th International Conference on Digital Signal Processing Proceedings. DSP 2002 (Cat. No.02TH8628) - Tập 2 - Trang 671-674 vol.2
Tóm tắt
In space-time block coded systems, the channel responses are assumed to be quasi-stationary. However, in many situations, this may not be the case and yields unsatisfactory performance. Therefore, there is a need to address the problem by tracking the channel responses in some way. We propose the use of particle filters for tracking the channel responses in space time coded systems. Compared to the case of no channel tracking, the proposed scheme improves the bit error rate (BER) of the system by at least 2 dB at higher signal-to-noise ratios (SNR).
Từ khóa
#Particle tracking #Space time codes #Gaussian noise #Transmitting antennas #Particle filters #Receiving antennas #Bit error rate #Filtering algorithms #Kalman filters #Biomedical signal processingTài liệu tham khảo
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