We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
CLIPPING DISTORTION SUPPRESSION IN OVERSAMPLED CODED OFDM SYSTEMS USING A NOVEL SOFT DECODING PROCEDURE.
- Authors
ALI-HEMMATI, RUHOLLAH; AZMI, PAEIZ
- Abstract
In this paper, a soft decoding method is proposed for QAM-modulated coded OFDM systems. This technique efficiently mitigates the distortion caused by clipping the oversampled-OFDM signals. Because the main advantage of an OFDM system is its robustness in fading channels, where this system turns a frequency selective channel into a set of parallel flat non-selective fading sub-channels, in this paper, we analyze the performance of the proposed method over flat fading Rician sub-channels. Our simulation results show that the proposed soft decoding technique significantly outper-forms the conventional hard decoding method.
- Subjects
ORTHOGONAL frequency division multiplexing; DATA transmission systems; WIRELESS communications; RADIO transmitter fading; MATHEMATICAL variables
- Publication
Fluctuation & Noise Letters, 2008, Vol 8, Issue 3/4, pL349
- ISSN
0219-4775
- Publication type
Article
- DOI
10.1142/S0219477508005070