<span lang="EN-US">Motivated by the fact that complexity of computations is one main challenges in large multiple input output systems, known as massive multiple-input multiple-output (MIMO) this article proposes a low-complex minimum mean squared error (MMSE) Bayesian channel estimator for uplink channels such systems. First, we have discussed necessity covariance information MMSE and ho...

In this paper, a new approach for linear prediction (LP) analysis is explored, where predictor can be computed from a mel-warped subband-based autocorrelation functions obtained from the power spectrum. For spectral representation a set of multi-resolution cepstral features are proposed. The general idea is to divide up the full frequency-band into several subbands, perform the IDFT on the mel ...

The requirement for GPS receivers with low Time To First Fix (TTFF) is increasing with the deployment of new standards like E911. Mean Acquisition Time (MAT) determines the TTFF in GPS receivers. In this paper we analyze a scheme called Sequential Muti-Tap correlator, which reduces MAT by an order of magnitude compared to a serial search correlator, without increasing the hardware significantly...