In wideband DS-SS systems the Rake receiver is commonly used to utilize the multipath diversity of the mobile radio channel. In the case of good spreading code correlation properties the multipath components of the received signal can be separated with low interpath interference (IPI). At low spreading gains the good correlation properties of the spreading codes are lost and the Rake receiver p...

Index modulation utilizes spatial dimensions for transmission of information in multiple-input multiple-output (MIMO) molecular communication systems. Molecular space shift keying (MSSK) is an IM-based technique that modulates the antenna index and efficiently combats both intersymbol interference interlink MIMO In this paper, generalized form MSSK scheme, is, (GMSSK) proposed which activates a...

As has been known, the Nyquist first condition promises no intersymbol interference (ISI) as derived in frequency domain. However, practical implementation using FIR filter truncates Fourier transform by its window and prevents mathematical calculation from reaching ideal solution at zero-ISI. For obtaining better results, an increase window’s length is required general. To address this problem...

In this paper, we address the problem of downlink detection in a mobile radio time division/code division multiple access multirate communication system employing a linear modulation. We focus on the detection of a group of intracell codes (ranging from a single one to all the active codes) rejecting both interference coming from the complementary set of undesired intracell codes and co-channel...

SUMMARY This paper proposes a new channel estimation method and a new interference cancellation scheme for multiple-input multiple-output orthogonal frequency division multiplexing (MIMO-OFDM) systems in the presence of intersymbol interference (ISI). The proposed channel estimation method uses special training sequences (TSs) to have a desirable crest-factor of the transmitted training signal,...

This discussion will be primarily focused on the problem of jointly suppressing the different interferences such as Multiple Access Interference (MAI) and Intersymbol Interference (ISI), which are the limiting sources of interference for high data-rate wireless applications, as in wireless multimedia or Spread Spectrum Code Division Multiple Access. After describing the general problem of inter...

Adaptive optics is used to compensate for modal dispersion in digital transmission through multimode fiber (MMF). At the transmitter, a spatial light modulator (SLM) controls the launched field pattern. An estimate of intersymbol interference (ISI) caused by modal dispersion is formed at the receiver and fed back to the transmitter, where the SLM is adjusted to minimize ISI. Error-free transmis...

In this paper, we propose adding enzymes to the propagation environment of a diffusive molecular communication system as a strategy for mitigating intersymbol interference. The enzymes form reaction intermediates with information molecules and then degrade them so that they have a smaller chance of interfering with future transmissions. We present the reaction-diffusion dynamics of this propose...

Recently much attention has been given to the design of timedomain equalizers or TEQs for discrete multitone modulation (DMT) systems. In this paper, we present a new method for the design of such equalizers which minimizes both the intersymbol interference (ISI) and noise power observed in a DMT system. Furthermore, we show how this method can be used for the design of fractionally spaced equa...

The symmetric cut-off rate is derived for Quadrature-Amplitude-Modulated (QAM) block-coded data-transmissions over noisy links impaired by timecorrelated multipath-phenomena which give rise to Rayleigh-distributed randomly time-variant Intersymbol Interference (ISI) effects. The presented formulas for the cut-off rate are new; they are derived from a random coding bound developed “ad hoc” for b...