Results 21 to 30 of about 1,508 (180)

Intersymbol interference in DQPSK fibre-optic systems [PDF]

, 2009
The limited bandwidth of high-speed transmitter and receiver hardware gives rise to intersymbol interference (ISI) in digital communication systems. The influence of such ISI is investigated in a low-complexity fiber-optical setting, using differential ...
Agrell, Erik, Karlsson, Magnus, Zhao, Hongxia,, Agrell, Erik,, Zhao, Hongxia, Karlsson, Magnus,   +5 more
core   +1 more source

Performance analysis and comparison of m x n zero forcing and MMSE equalizer based receiver for mimo wireless channel [PDF]

Songklanakarin Journal of Science and Technology (SJST), 2011
Wireless transmission is affected by fading and interference effects which can be combated with equalizer.The useof MIMO system promises good improvement in terms of spectral efficency,link relaibility andSignal to Noise Ratio (SNR).The effect of fading ...
N. Sathish Kumar, K. R. Shankar Kumar
doaj  

8/10 two‐dimensional modulation code for holographic data storage systems

Electronics Letters, 2016
Holographic data storage (HDS) provides the high storage density and fast data‐access rate because of the page‐oriented data processing, and by the same reason, the performance of retrieving original user data is mainly affected by 2D intersymbol ...
C.D. Nguyen, J. Lee
doaj   +1 more source

Performance and design of a reduced complexity iterative equalizer for precoded ISI channels

, 2003
The paper considers the performance and design of a reduced complexity iterative equalizer, for a system including a rate one recursive channel precoder.
Nix, AR, A.G. Lillie, A.R. Nix, McGeehan, JP, Lillie, AG, J.P. McGeehan   +5 more
core   +1 more source

A Network of Kalman Filters for MAI and ISI Compensation in a Non-Gaussian Environment

EURASIP Journal on Advances in Signal Processing, 2005
This paper develops a new multiuser detector based on a network of kalman filters (NKF) dealing with multiple access-interference (MAI), intersymbol Interference (ISI), and an impulsive observation noise.
Sayadi Bessem, Marcos Sylvie
doaj   +1 more source

Turbo Detection of Space-time Trellis-Coded Constant Bit Rate Vector-Quantised Videophone System using Reversible Variable-Length Codes, Convolutional Codes and Turbo Codes

, 2004
In this treatise we characterise the achievable performance of a proprietary video transmission system, which employs a Constant Bit Rate (CBR) video codec that is concatenated with one of three error correction codecs, namely a Reversible Variable ...
Yeap, B. L., Ng, S. X., Hanzo, L., Maunder, R. G.   +3 more
core   +1 more source

PSO Algorithm on PAPR Reduction Performance of Asymmetrically Clipped Optical‐OFDM

Applied Computational Intelligence and Soft Computing, Volume 2026, Issue 1, 2026.
This research presents a novel hybrid optimization framework combining artificial neural networks (ANN) and particle swarm optimization (PSO) to mitigate the high peak‐to‐average power ratio (PAPR) in asymmetrically clipped optical‐orthogonal frequency division multiplexing (ACO‐OFDM) systems. While conventional PTS effectively reduces PAPR, it suffers
Hermansyah Alam, Anuar Mat Safar, Norizan Mohamed Nawawi, Mohd Nordin Junita, Aymen Abdalmunam Hameed, Ridha Ejbali   +5 more
wiley   +1 more source

Pilot‐Based Iterative Path Estimation and Maximum Ratio Combining (MRC)–Based Signal Detection of Orthogonal Time–Frequency Space (OTFS) Modulation for 6G in Fractional Doppler Channels

Journal of Computer Networks and Communications, Volume 2026, Issue 1, 2026.
The sixth generation (6G) wireless networks are used to provide a large coverage, and also this generation needed to support different emerging applications in harsh areas with higher user equipment mobility. For the above case, a new modulation technique called orthogonal time–frequency space (OTFS) modulation has emerged as a promising technique to ...
Ephrem Gelamite Demere, Zelalem Hailu Gebeyehu, Sohini Basu Roy   +2 more
wiley   +1 more source

Interference Estimation Using a Recurrent Neural Network Equalizer for Holographic Data Storage Systems

Applied Sciences, 2023
Holographic data storage (HDS) utilizes the unique properties of light for writing and reading two-dimensional (2D) data from holographic media, providing significantly higher densities and faster data transfer rates than traditional storage media for ...
Thien An Nguyen, Jaejin Lee
doaj   +1 more source

Comparing GFDM With OFDM for Use in 6G Communication From a New Perspective

Journal of Electrical and Computer Engineering, Volume 2026, Issue 1, 2026.
The most important challenges facing 6G communication systems are the large amount of data and low latency as compared to previous generations. Therefore, it has become necessary to use advanced technologies to meet the requirements of 6G wireless communication systems.
Mohammed Azher Therib, Saad Saffah Hreshee, Martin Haardt   +2 more
wiley   +1 more source