Results 31 to 40 of about 71,014 (263)

Channel Estimation With Systematic Polar Codes [PDF]

open access: yesIEEE Transactions on Vehicular Technology, 2018
Study of polar codes in fading channels is of great importance when applying polar codes in wireless communications. Channel estimation is a fundamental step for communication to be possible in fading channels. For both systematic and non-systematic polar codes, construction of them is based on an information set and the known frozen bits.
Liping Li 0001, Zuzheng Xu, Yanjun Hu
openaire   +2 more sources

A Channel Imbalance Calibration Scheme with Distributed Targets for Circular Quad-Polarization SAR with Reciprocal Crosstalk

open access: yesRemote Sensing, 2023
As polarimetric antennas can be isolated through excellent electronic frameworks in circular quad-polarization (CQP) synthetic aperture radar (SAR) systems, cross-polarization (x-pol) and co-polarization (co-pol) channel imbalances are more challenging ...
Xingjie Zhao   +3 more
doaj   +1 more source

Polar Codes for Classical-Quantum Channels [PDF]

open access: yesIEEE Transactions on Information Theory, 2013
Holevo, Schumacher, and Westmoreland's coding theorem guarantees the existence of codes that are capacity-achieving for the task of sending classical data over a channel with classical inputs and quantum outputs. Although they demonstrated the existence of such codes, their proof does not provide an explicit construction of codes for this task. The aim
Mark M. Wilde, Saikat Guha 0001
openaire   +2 more sources

Tripolarizated MIMO: Experimental Analysis and Modeling of Channel Properties in Both Indoor and Outdoor Scenarios

open access: yesInternational Journal of Antennas and Propagation, 2021
The tripolarized MIMO system can provide one more degree of freedom and have a more compacted size over a dual-polarized MIMO system, which is attractive for high-capacity wireless communication systems.
Pan Tang   +6 more
doaj   +1 more source

Polar Codes for Degradable Quantum Channels [PDF]

open access: yesIEEE Transactions on Information Theory, 2013
12 pages, 1 figure; v2: IEEE format, minor changes including new figure; v3: minor changes, accepted for publication in IEEE Transactions on Information ...
Mark M. Wilde, Saikat Guha 0001
openaire   +2 more sources

Modular Arithmetic Erasure Channels and Their Multilevel Channel Polarization [PDF]

open access: yesIEEE Transactions on Information Theory, 2020
This study proposes \emph{modular arithmetic erasure channels} (MAECs), a novel class of erasure-like channels with an input alphabet that need not be binary. This class contains the binary erasure channel (BEC) and some other known erasure-like channels as special cases.
Yuta Sakai   +2 more
openaire   +2 more sources

Polar Codes for the Deletion Channel: Weak and Strong Polarization [PDF]

open access: yesIEEE Transactions on Information Theory, 2019
This paper presents the first proof of polarization for the deletion channel with a constant deletion rate and a regular hidden-Markov input distribution. A key part of this work involves representing the deletion channel using a trellis and describing the plus and minus polar-decoding operations on that trellis.
Ido Tal   +3 more
openaire   +2 more sources

Polar codes and polar processing for 6G wireless systems

open access: yesTongxin xuebao, 2020
As the first type of channel code achieving the channel capacity,polar codes are an important candidate for the 6G data transmission.A polarized processing framework for the 6G systems was proposed.In this framework,in order to fulfill the requirement of
Kai NIU, Jinchen DAI, Jinnan PIAO
doaj  

Effect of Polarization on the Correlation and Capacity of Indoor MIMO Channels

open access: yesInternational Journal of Antennas and Propagation, 2012
We describe a simple multiple-input/multiple-output (MIMO) channel measurement system for acquiring indoor MIMO channel responses. Four configurations of the polarization diversity antenna, referred to as VVV, YYH, YVY and VHH, were studied in terms of ...
Hsun-Chang Lo   +3 more
doaj   +1 more source

Joint Source-Channel Polarization With Side Information

open access: yesIEEE Access, 2018
As an extension of source polarization and channel polarization, this paper considers joint source-channel polarization, which results in a joint source-channel coding (JSCC) scheme using a quasiuniform systematic polar code (SPC).
Liqiang Jin, Hongwen Yang
doaj   +1 more source

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