The purpose of a communication system is to transfer information between two separate points over some medium in the presence of disturbances or distortions such as noise and dispersion. This distortion is manifested in the time domain as pulse dispersion and is labeled as Inter-Symbol Interference (ISI). As data rates increase in modern digital communication systems, ISI becomes an inevitable ...

Holographic data storage is a promising data storage technology because of its potential for high data storage density (more than 1 Tbyte/in2), high data rate (more than 1 Gb/s) and short access time (less than lgs). In contrast to conventional data storage systems, holographic data storage systems use a parallel two-dimensional or page-like format in recording and retrieval. In this project, w...

Bandwidth-limited IMDD systems suffer from the noise boosted by strong equalization at receiver. This letter proposes a multiplication-free approach that reduces impacts of equalizer-enhanced colored through time-interleaving received symbols and distorting two-dimensional (2D) constellation such correlation is subdued. The 2D distortion map predefined retrieved look-up table. proposed evaluate...

This paper introduces a new variable step-size LMS (NVSS LMS) algorithm in an adaptive channel equalizer. This variant of VSS LMS algorithm is based on the weighting coefficinets bias/varance trade-off. We will show here that the adaptive equalizer with the NVSS LMS algorithm has favorable performance. Simulation results are provided to support the proposed implementation of the NVSS LMS.

Abstract—A simple design for realizing a Bode-type amplitude equalizer is proposed. It allows any arbitrary, but RC realizable, shaping function and whole range. The Bode-type amplitude equalizer using current feedback amplifier is derived which can operate satisfactory at much higher frequencies compared to the operational amplifier based ones. Simulation results are in good agreement with the...

A novel version of the reduced-state Bayesian Maximum A Posteriori Probability /Decision-Feedback (MAP/DF) equalizer for ISI channels with long impulse responses is presented. The main feature of the proposed equalizer is that the soft-statistics generated by the MAP receiver are employed to recursively compute a suitable index of the actual reliability of the (soft) decisions feeding the DF fi...