نتایج جستجو برای: intersymbol interference

تعداد نتایج: 96448  

Journal: :IEEE Communications Letters 2022

This letter investigates electrophoretic molecular communication (EMC) operating in circular duct channels. EMC utilizes the time-varying force that can controllably induce movement of charged particles to enhance performance. In channels, where memory component is high, intersymbol interference (ISI) must be considered. Thus, this presents a method design an electric field under framework calc...

2006
Terng-Ren Hsu Terng-Yin Hsu Chen-Yi Lee

This paper presents a multi-input multi-output (MIMO) multi-layered perceptron neural network with backpropagation algorithm (MLP/BP). The proposal is a waveform equalizer for distorted nonreturn-to-zero (NRZ) data recovery in band-limited channels with co-channel interference (CCI). From the simulation results, we note that the proposed design can recover severe distorted NRZ data as well as s...

2014
Na Liu Xue Chen Cheng Ju Rongqing Hui

The intersymbol interference caused by dispersion, chirp, and a vestigial sideband filter in intensity modulation and a direct detection single carrier system is analyzed theoretically and numerically. An iterative nonlinear intersymbol interference cancellation technique is proposed and experimentally demonstrated in a 40Gbps 16-QAMMach-Zehnder modulator-based vestigial sideband intensity modu...

1999
Gerhard Bauch

 Turbo-detection applies the “turboprinciple” to iterative equalization and decoding of data transmitted via frequency selective channels. The performance of turbo-detection strongly depends on the ISI (Intersymbol Interference) introduced by the modulator and the waveform channel. In order to achieve higher data rates within GSM (Global System for Mobile Communications), 8PSK modulation will ...

2016
Khalid Mahmood Syed Muhammad Asad Muhammad Moinuddin Waqas Imtiaz

Decision feedback equalizer uses prior sensor’s decisions to mitigate damaging effects of intersymbol interference on the received symbols. Due to its inherent non linear nature, decision feedback equalizer outperforms the linear equalizer in case where the intersymbol interference is sever in a communication system. Equalization of multiple input multiple output fast fading channels is a daunt...

2017
Anant Sahai John Wawrzynek Felicity Zhao Cindy Chen

Intersymbol interference is an unwanted phenomenon that makes communication less reliable. However, an equalizer can reduce the bad influence of intersymbol interference. In general, my work is to compare different equalizers in various scenarios. In the first part of this paper, I explain the motivation of using equalization in detail, followed by introducing prerequisite knowledge of equaliza...

Journal: :IEEE Communications Letters 2022

Faster than Nyquist signaling increases the spectral efficiency of pulse amplitude modulation by accepting intersymbol interference, where an equalizer is needed at receiver. Since complexity optimal exponentially with number interfering symbols, practical truncated equalizers assume shorter memory. The power resulting residual interference depends on transmit filter and limits performance equa...

Journal: :EURASIP J. Wireless Comm. and Networking 2006
Jan Mietzner Sabah Badri-Hoeher Ingmar Land Peter A. Hoeher

Sparse intersymbol-interference (ISI) channels are encountered in a variety of communication systems, especially in high-datarate systems. These channels have a large memory length, but only a small number of significant channel coefficients. In this paper, equalization of sparse ISI channels is revisited with focus on trellis-based techniques. Due to the large channel memory length, the comple...

Journal: :European Transactions on Telecommunications 1995
Catherine Douillard Michel Jézéquel Claude Berrou Annie Picart Pierre Didier Alain Glavieux

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