Time-Frequency Training OFDM with High Spectral Efficiency and Reliable Performance in High Speed Environments

Orthogonal Frequency Division Multiplexing (OFDM) is widely recognized as the key technology for the next generation Broadband Wireless Communication (BWC) systems. Besides high spectral efficiency, reliable performance over fast fading channels is becoming more and more important for OFDM-based BWC systems, especially when high speed cars, trains and subways are playing an increasingly indispensable role in the people daily life. The Time Domain Synchronous OFDM (TDS-OFDM) has higher spectral efficiency than the standard Cyclic Prefix OFDM (CP-OFDM), but suffers from severe performance loss over high speed mobile channels since the required iterative interference cancellation between the Training Sequence (TS) and the OFDM data block.

Provided by: Institute of Electrical & Electronic Engineers Topic: Mobility Date Added: May 2012 Format: PDF

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