Modems White Papers
The Performance of Overlap PCC-OFDM With Error-Correcting Codes
Overview Polynomial cancellation coded orthogonal frequency division multiplexing with overlapping symbol periods (Overlap PCC-OFDM) is a modulation technique that is less sensitive to frequency errors and more robust against multipath distortion than OFDM. A cyclic prefix is no longer needed. However, fading is still a problem and will cause bit errors. Error propagation will occur as decision feedback equalizer is used. In previous studies this was not taken into account and perfect decisions were assumed. In Overlap PCC-OFDM because the equalizer output is a vector rather than a scalar, error correction can be performed across the vector before the decision is fed back. In this paper, error-correcting codes across the Subchannels are applied to improve the symbol error rate (SER).
| Publisher | La Trobe University | File Format | PDF, requires Acrobat Rdr 5 |
|---|---|---|---|
| Date Published | December 2001 | Downloads | 1 |
| Format | White Papers | ||
| Topics | |||
-
Did you find this white paper useful?
White Paper RSS
Download
Register
