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We propose an iterative channel estimation and data detection technique for frequency selective channels with multiple frequency offsets (FOs). The pilot symbols are generally inadequate to obtain an accurate estimate of the FOs due to limitation on the frequency resolution of the estimator. Therefore, we initially use the pilot sequence for the estimation and equalization of the channel without consideration...
We provide an iterative joint channel estimation and data detection algorithm for multipath channels with multiple frequency offsets (FOs). Pilot symbols are generally not long enough to provide enough resolution to estimate frequency offsets. Hence we used initial pilot based channel estimation to generate soft decision of the transmitted signal using log likelihood ratios, and the frequency offsets...
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