In the presence of narrowband interference (NBI), the performance of the direct-sequence code-division multiple access communication system can be improved by using various interference cancellation schemes. In this paper, a scheme of parallel interference cancellers (PICs), which includes a set of NBI cancellation filters and a set of multiple access interference (MAI) cancellation filters, is...

Interference management and interference cancellation are addressed in the satellite communication (SATCOM) system. We first introduce the two options for a multibeam payload: flexible (FLEX) where allocation is fully flexible in the frequency domain, and conventional on which beamforming (BF) is applied. Further, two optimization problems are proposed, P1: spectral mask vector design and power...

Direct sequence (DS) code division multiple access (CDMA) is a promising technology for wireless communication with multiple simultaneous transmissions. The capacity of DS-CDMA is interference-limited and can therefore be increased by techniques that suppress interference. In this paper, an interference cancellation method is given. We propose a novel parallel interference cancellation detector...

In this paper, interference mitigation capabilities of a noise-based wireless modulation technique are considered. In particular, the effect of narrowband interferers on the BER performance of such a system that uses pure noise as an information bearer is analyzed. The main scope of this paper is to compare the performance analysis of the various interference cancellation schemes for the noise ...

Multi-carrier code division multiple access (MC-CDMA) is an attractive multiple access technique. For achieving a very high speed data transmission with a limited bandwidth, MCCDMA can be jointly used with multiple-input multipleoutput (MIMO) multiplexing. Among many signal detection methods, an iterative interference cancellation technique can be used. The presence of residual interference lim...

In this paper, multi-cell channel estimation algorithm based on successive interference cancellation (SIC).This channel algorithm is also used for Time Division Synchronization Code Division Multiple Access Systems (TD-SCDMA). TD-SCDMA is the country's standard of 3G mobile telecommunication. This reduces the number of users in each timeslot, which reduces the implementation complexity of multi...

Multiple User Interference (MUI) considers the primary problem in Optical Code-Division Multiple Access (OCDMA), which resulting from the overlapping among the users. In this article we aim to mitigate this problem by studying an interference cancellation scheme called successive interference cancellation (SIC) scheme. This scheme will be tested on two different detection schemes, spectral ampl...

A per-survivor adaptive interference cancellation (PSAIC) decoder is proposed for group decoding of a space–time trellis-coded DS-CDMA system. To mitigate error propagation by tentative decisions, persurvivor processing is introduced to a group decoder with adaptive interference cancellation. It is shown that the proposed decoder outperforms conventional decoders without much increase of decodi...

In this paper we examine the absorption and dispersion properties of a weak probe field via Electromagnetically Induced Transparency (EIT) in a four-level system. It is shown that under certain condition, using this model, the absorption cancellation is appeared and the medium becomes transparent to the weak probe field. It will be shown that the controlling of absorption and dispersion spectru...

M ULTIUSER detection (MUD) techniques hold the promise that future multiple-access communications systems will be able to use all the dormant capacity that is potentially available in existing communications networks. This second issue devoted to the topic of MUD techniques 1 features 22 contributions that address key areas for the development of the field. In wireless transmission systems, MUD...