Turbo equalization is an iterative equalization and decoding technique that can achieve impressive performance gains for communication systems. In this letter, we investigate the turbo equalization method for the decoding of the Davey-MacKay (DM) construction over the IDSAWGN channels, which indicates a cascaded insertion, deletion, substitution (IDS) channel and an additive white Gaussian nois...

Traditionally, room response equalization is performed to improve sound quality at a given listener. However, room responses vary with source and listener positions. Hence, in a multiple listener environment, equalization may be performed through spatial averaging of magnitude responses at locations of interest. However, the performance of averaging based equalization, at the listeners, may be ...

In this paper, closed-form and polynomial bounds are derived for the residual intercarrier interference (ICI) in orthogonal frequency-division multiplexing (OFDM) systems resulting from Doppler spread or carrier frequency offset (CFO). We consider the idea of equalizing neighboring subcarriers and the residual interference comes from the subcarriers outside of the equalization window. The longe...

This paper surveys the recent developments in the area of equalization of the wireless propagation channels. It focuses on a subclass of equalization algorithms that minimizes the Mean Square Error (MMSE) between the desired and estimated signal. The following aspects of the equalization problem are considered: system modeling, algorithm classification based on the availability of training sequ...

In this article, we present different space-time receive processing techniques for frequency selective multiple input multiple output (MIMO) channels and evaluate their performance. We present the solutions for linear zem-forcing (ZF) and Wenerfil ter (WF) equalization with latency time optimization and incorporate the Bell Laboratories Layered Space Time (BLAST) architecture to gain diversity....

We investigate the potential of adaptive equalization techniques to mitigate inter-channel nonlinear interference noise (NLIN). We derive a lower bound on the mutual information of a system using adaptive equalization, showing that the channel estimation error determines the equalizer’s performance. We develop an adaptive equalization scheme which uses the statistics of the NLIN to obtain optim...

This paper addresses the issue of advanced equalization methods for space-time communications over MIMO broadband wireless channel. Instead of resorting to conventional multiuser detection techniques (based on the straightforward analogy between antennas and users), we adopt a different point of view and separate time equalization from space equalization, thus introducing a higher degree of fre...