OFDM system: a new perspective in high Doppler spread
作者： R. B. Jain , S. N. Munde , V. S. Khobragade
关键词: Orthogonal frequency-division multiplexing 、 Electronic engineering 、 Perspective (graphical) 、 Interference (communication) 、 Telecommunications 、 Orthogonality 、 Matched filter 、 Computer science 、 Fading 、 Degradation (telecommunications) 、 Communication channel
摘要: This work considers an Orthogonal Frequency Division Multiplexing (OFDM) system over frequency selective time varying fading channel. The variations of channel during one OFDM symbol destroy the orthogonality different subcarriers and result Inter Carrier Interference (ICI), which results in degradation performance. In this work, symbols are designed such a way so as to avoid performance caused by ICI. A simple efficient technique is proposed design based on eigen values method described Channel Matched (CMOFDM). Performance comparison between conventional matched filter CMOFDM receiver structure under same conditions provided. Simulation further confirm superiority new suppressing ICI system.
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