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A practical approach for detecting packet-based orthogonal-frequency-division multiplexing (OFDM) signals in the presence of phase noise is presented. An OFDM packet consists of several OFDM symbols with full-pilot symbols at the beginning followed by consecutive data symbols. Based on the full-pilot OFDM symbol, a frequency-domain joint phase noise and channel vector estimator is first derived. It...
The paper presents an investigation into methods for maximizing the spectral Efficiency of Orthogonal Frequency Division Multiplexing (OFDM) systems. As part of this, an investigation of detrimental effects on OFDM is presented, the use of pilots between carriers, Clipping Distortion, Additive Complex Noise (ACN) on modulation QPSK rate, on multi path Synchronization error, using estimation results...
Orthogonal frequency division multiplexing (OFDM) is an attractive technique for achieving high-bit-rate wireless communications. Phase noise causes constellation rotation, the so called common phase error (CPE), and inter-carrier interference (ICI). In the proposed compensation scheme, we estimate CPE, channel and data by using of linear interpolation method. It is shown by computer simulations that...
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