Abstract
In an orthogonal frequency division multiplexing (OFDM) system, a time and frequency domain least mean square algorithm (TF-LMS) was proposed to cancel the frequency offset (FO). TF-LMS algorithm is composed of two stages. Firstly, time domain least mean square (TD-LMS) scheme was selected to pre-cancel the frequency offset in the time domain, and then the interference induced by residual frequency offset was eliminated by the frequency domain mean square (FD-LMS) scheme in frequency domain. The results of bit error rate (BER) and quadrature phase shift keying (QPSK) constellation figures show that the performance of the proposed suppression algorithm is excellent.
| Original language | English |
|---|---|
| Pages (from-to) | 1293-1299 |
| Number of pages | 7 |
| Journal | Journal of Central South University of Technology (English Edition) |
| Volume | 17 |
| Issue number | 6 |
| DOIs | |
| State | Published - Dec 2010 |
Keywords
- Cancellation
- Frequency offset
- Least mean square algorithm
- Orthogonal frequency division multiplexing (OFDM)
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