Intersymbol interference ≈ Intersymbol interference
View article
Beyond Massive MIMO: The Potential of Data Transmission With Large Intelligent Surfaces Open
In this paper, we consider the potential of data-transmission in a system with a massive number of radiating and sensing elements, thought of as a contiguous surface of electromagnetically active material. We refer to this as a Large Intel…
View article
Molecular MIMO: From Theory to Prototype Open
In diffusion-based molecular communication, information transport is governed\nby diffusion through a fluid medium. The achievable data rates for these\nchannels are very low compared to the radio-based communication system, since\ndiffusi…
View article
45-Gb/s RGB-LED based WDM visible light communication system employing CAP modulation and RLS based adaptive equalization Open
Inter-symbol interference (ISI) is one of the key problems that seriously limit transmission data rate in high-speed VLC systems. To eliminate ISI and further improve the system performance, series of equalization schemes have been widely …
View article
Mobile Multi-Gigabit Visible Light Communication System in Realistic Indoor Environment Open
The main challenges facing high data rate visible light communication (VLC) are the low-modulation bandwidth of the current transmitters (i.e., light emitting diodes), the intersymbol interference (ISI) caused by the multipath propagation …
View article
Analysis and Design of Multi-Hop Diffusion-Based Molecular Communication Networks Open
In this paper, we consider a multi-hop molecular communication network consisting of one nanotransmitter, one nanoreceiver, and multiple nanotransceivers acting as relays. We consider three different relaying schemes to improve the range o…
View article
Design Guidelines of Low-Density Parity-Check Codes for Magnetic Recording Systems Open
As one of the most classical data-storage systems, magnetic recording (MR) systems have attracted a significant amount of research attention in the past several decades due to the advantages of low cost and high storage density. Along with…
View article
Optical Time–Frequency Packing: Principles, Design, Implementation, and Experimental Demonstration Open
Time-frequency packing (TFP) transmission provides the highest achievable spectral efficiency with a constrained symbol alphabet and detector complexity. In this work, the application of the TFP technique to fiber-optic systems is investig…
View article
A Very Low Complexity Successive Symbol-by-Symbol Sequence Estimator for Faster-Than-Nyquist Signaling Open
In this paper, we investigate the sequence estimation problem of binary and quadrature phase shift keying faster-than-Nyquist (FTN) signaling and propose two novel low-complexity sequence estimation techniques based on concepts of successi…
View article
The Evolution of Faster-Than-Nyquist Signaling Open
The fifty-year progress of faster-than-Nyquist (FTN) signaling is surveyed. FTN signaling exploits non-orthogonal dense symbol packing in the time domain for the sake of increasing the data rate attained. After reviewing the system models …
View article
Sparse Channel Estimation of Underwater TDS-OFDM System Using Look-Ahead Backtracking Orthogonal Matching Pursuit Open
Time division synchronization orthogonal frequency division multiplexing (TDS-OFDM) has been attractive due to its fast synchronization and efficient spectral efficiency over conventional cyclic prefix orthogonal frequency division multipl…
View article
Adaptive Sparse Dictionary Based Kernel Minimum Symbol Error Rate Post-Distortion for Nonlinear LEDs in Visible Light Communications Open
Visible light communications (VLC) has emerged as one of the prominent technologies to cater to the ever-increasing high-speed-data demand for proposed fifth-generation (5G) systems. However, two main issues affect the performance of VLC i…
View article
Reduced-state MLSE for an IM/DD system using PAM modulation Open
The performance of a high-speed intensity-modulation (IM)/direct-detection (DD) transmission system could be limited by the bandwidth of optical transceivers. One popular way to cope with this performance limitation is to utilize the maxim…
View article
A Hybrid BP-EP-VMP Approach to Joint Channel Estimation and Decoding for FTN Signaling over Frequency Selective Fading Channels Open
This paper deals with low-complexity joint channel estimation and decoding for faster-Than-Nyquist (FTN) signaling over frequency selective fading channels. The inter-symbol interference (ISI) imposed by FTN signaling and the frequency sel…
View article
Data Rate Enhancement in Optical Camera Communications Using an Artificial Neural Network Equaliser Open
In optical camera communication (OCC) systems leverage on the use of commercial off-the-shelf image sensors to perceive the spatial and temporal variation of light intensity to enable data transmission. However, the transmission data rate …
View article
Three Dimensional Angle of Arrival Estimation in Dynamic Indoor Terahertz Channels Using Forward-Backward Algorithm Open
A novel angle-of-arrival (AoA) estimation method for both azimuth and elevation based on Bayesian inference and statistical state transition probabilities is presented for the dynamic indoor terahertz (THz) channel. A precise AoA estimatio…
View article
Maximum Likelihood Detection With Ligand Receptors for Diffusion-Based Molecular Communications in Internet of Bio-Nano Things Open
Molecular Communication (MC) is a bio-inspired communication technique that uses molecules as a method of information transfer among nanoscale devices. MC receiver is an essential component having profound impact on the communication syste…
View article
A Comprehensive Analysis of Strength-Based Optimum Signal Detection in Concentration-Encoded Molecular Communication With Spike Transmission Open
In this paper, a comprehensive analysis of strength-based optimum signal detection model has been presented for concentration-encoded molecular communication (CEMC) with spike (i.e., impulsive) transmission based on amplitude-shift keying …
View article
100 Gbit/s PAM4 signal transmission and reception for 2-km interconnect with adaptive notch filter for narrowband interference Open
In this paper, we experimentally demonstrate the transmission of 56 Gbaud four-level pulse amplitude modulation (PAM4) signal over 2-km single mode fiber (SMF) with intensity modulation and direct detection (IM/DD) scheme, while the bit-er…
View article
Parallelized Structures for MIMO FBMC Under Strong Channel Frequency Selectivity Open
A novel architecture for MIMO transmission and reception of filterbank multicarrier (FBMC) modulated signals under strong frequency selectivity is presented. The proposed system seeks to approximate an ideal frequency-selective precoder an…
View article
Iterative Receiver Design for ISI Channels Using Combined Belief- and Expectation-Propagation Open
In this letter, a message-passing algorithm that combines belief propagation and expectation propagation is applied to design an iterative receiver for intersymbol interference channels. We detail the derivation of the messages passed alon…
View article
Closed-Form Expressions for ICI/ISI in Filtered OFDM Systems for Asynchronous 5G Uplink Open
One of the major purposes for fifth generation (5G) communications waveform design is to relax the synchronization requirements for supporting efficient massive machine type communications (MTCs). Polynomial cancellation coded orthogonal f…
View article
Embedding OFDM-Based Carrier Communication Into Power Control Loop of Converter in DC Microgrids Open
In direct current (DC) microgrids, communication between converters is necessary for better power distribution and finer energy scheduling. This paper proposes an orthogonal frequency division multiplexing (OFDM)-based carrier communicatio…
View article
Learning in an Uncertain World: MIMO Covariance Matrix Optimization With Imperfect Feedback Open
International audience
View article
Artificial intelligence for channel estimation in multicarrier systems for B5G/6G communications: a survey Open
Multicarrier modulation allows for deploying wideband systems resilient to multipath fading channels, impulsive noise, and intersymbol interference compared to single-carrier systems. Despite this, multicarrier signals suffer from differen…
View article
The potential of FBMC over OFDM for the future 5G mobile communication technology Open
Fifth Generation (5G) is the new evolution of mobile communication technology and will be launched soon in many countries. The researchers and designers of mobile communication technology have been facing the increasing demand of the mobil…
View article
Efficient Chromatic Dispersion Compensation and Carrier Phase Tracking for Optical Fiber FBMC/OQAM Systems Open
Offset-QAM-based filterbank multicarrier (FBMC/OQAM) is an attractive candidate to improve the spectral containment of optical fiber communication systems, especially when considering a sufficiently high number of subcarriers. As for other…
View article
Frequency Domain Analysis and Equalization for Molecular Communication Open
Molecular Communication (MC) is a promising micro-scale technology that enables wireless connectivity in electromagnetically challenged conditions. The signal processing approaches in MC are different from conventional wireless communicati…
View article
Efficient Machine Learning-Enhanced Channel Estimation for OFDM Systems Open
Recently much research work has focused on employing deep learning (DL) algorithms to perform channel estimation in the upcoming 6G communication systems. However, these DL algorithms are usually computationally demanding and require a lar…
View article
Improved Nyquist pulse shaping filters for generalized frequency division multiplexing Open
Generalized Frequency-Division Multiplexing (GFDM) is one of the multicarrier modulation schemes currently under study for next generation 5G cellular networks. One of the main characteristics of GFDM is the low out of band emission that i…
View article
Filter Bank Multicarrier in Massive MIMO: Analysis and Channel Equalization Open
We perform an asymptotic study of the performance of filter bank multicarrier (FBMC) in the context of massive multi-input multi-output (MIMO). We show that the effects of channel distortions, i.e., intersymbol interference and intercarrie…