Results 71 to 80 of about 910,579 (228)

Novel Intersymbol Interference Cancellation Scheme to Enable Parallel Computational and High-Performance Faster-Than-Nyquist Signaling

open access: yesIEEE Access, 2017
In this paper, we deal with the intersymbol interference (ISI) cancellation problem induced by the faster-than-Nyquist (FTN) signaling. In the traditional FTN signaling, the detection delay at the receiver depends on the number of states of the ISI ...
Bin Qian   +4 more
doaj   +1 more source

Sub-Nyquist Field Trial Using Time Frequency Packed DP-QPSK Super-Channel Within Fixed ITU-T Grid

open access: yes, 2015
Sub-Nyquist time frequency packing technique was demonstrated for the first time in a super channel field trial transmission over long-haul distances. The technique allows a limited spectral occupancy even with low order modulation formats.
Berrettini, G.   +14 more
core   +1 more source

Low Complexity Message Passing Receiver for Faster-Than-Nyquist Signaling in Nonlinear Channels

open access: yesIEEE Access, 2018
The modern and future communication systems demand higher data rate exceeds current capabilities. Faster-than-Nyquist (FTN) signaling is a promising technique for the reason it can improve the spectral efficiency.
Xiaojie Wen   +4 more
doaj   +1 more source

High performance faster-than-nyquist signaling [PDF]

open access: yes, 2014
In a wireless broadband context, multi-path dispersive channels can severely affectdata communication of Mobile Terminals (MTs) uplink.Single Carrier withFrequency-Domain Equalization (SC-FDE) has been proposed to deal with highlydispersive ...
Cunha, Bruno Miguel Domingues da
core  

Pulse Shaping Diversity to Enhance Throughput in Ultra-Dense Small Cell Networks

open access: yes, 2016
Spatial multiplexing (SM) gains in multiple input multiple output (MIMO) cellular networks are limited when used in combination with ultra-dense small cell networks. This limitation is due to large spatial correlation among channel pairs.
Jafari, Amir H.   +3 more
core   +1 more source

A survey on fiber nonlinearity compensation for 400 Gbps and beyond optical communication systems

open access: yes, 2017
Optical communication systems represent the backbone of modern communication networks. Since their deployment, different fiber technologies have been used to deal with optical fiber impairments such as dispersion-shifted fibers and dispersion ...
Amari, Abdelkerim   +5 more
core   +1 more source

Optical Time-Frequency Packing: Principles, Design, Implementation, and Experimental Demonstration

open access: yes, 2015
Time-frequency packing (TFP) transmission provides the highest achievable spectral efficiency with a constrained symbol alphabet and detector complexity.
Cavaliere, Fabio   +9 more
core   +1 more source

Serial and parallel concatenations based on faster than Nyquist signaling [PDF]

open access: yes, 2006
We investigate the performance of concatenated coding schemes based on Faster Than Nyquist(FTN) signaling over the AWGN channel. We test both serial and parallel concatenations. In serial concatenation the FTN signaling is considered as the inner encoder
Anderson, John B, Rusek, Fredrik
core   +2 more sources

Time-Frequency Packing for High Capacity Coherent Optical Links

open access: yes, 2014
We consider realistic long-haul optical links, with linear and nonlinear impairments, and investigate the application of time-frequency packing with low-order constellations as a possible solution to increase the spectral efficiency.
Colavolpe, Giulio, Foggi, Tommaso
core   +1 more source

Beyond Massive-MIMO: The Potential of Data-Transmission with Large Intelligent Surfaces

open access: yes, 2017
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 intelligent surface (
Edfors, Ove, Hu, Sha, Rusek, Fredrik
core   +1 more source

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