Modems White Papers
A Partial-DFT-Based OFDM System Resistant to Channel Nulls
Overview This paper presents a partial DFT-based modified OFDM system that is resistant to channel nulls, when the channel state information is known to both the transmitter and the receiver. It shows the relationship between this method and filterbank precoding system as well as linearly precoded OFDM. Two optimal zero-forcing solutions are developed. These solutions inherit the fast implementation of OFDM and the superior performance of linear precoding system.
| Publisher | The Johns Hopkins University | File Format | PDF, requires Acrobat Rdr 5 |
|---|---|---|---|
| Date Published | November 2002 | Downloads | 10 |
| Format | White Papers | ||
| Topics | |||
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