Abstract
Recently, Generalized Discrete Fourier Transform (GDFT) has been forwarded as the theoretical framework to design a variety of constant modulus orthogonal complex transforms with non-linear phase. In this paper, we evaluate the auto- and cross-correlation properties of several GDFT solutions and compare them with the popular code families like Gold, Walsh and DFT. It is shown that the GDFT brings significant correlation performance improvements over known code families. We predict that GDFT based OFDM and CDMA solutions will offer performance improvements in multicarrier communications systems of the future.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1369-1373 |
| Number of pages | 5 |
| Journal | European Signal Processing Conference |
| State | Published - 2009 |
| Event | 17th European Signal Processing Conference, EUSIPCO 2009 - Glasgow, United Kingdom Duration: Aug 24 2009 → Aug 28 2009 |
All Science Journal Classification (ASJC) codes
- Signal Processing
- Electrical and Electronic Engineering
Keywords
- CDMA
- Correlation performance
- DMT
- Generalized Discrete Fourier Transform
- OFDM