Results 1 to 10 of about 177,802 (168)

Modulation Decoding Based on K-Means Algorithm for Bit-Patterned Media Recording

open access: yesApplied Sciences, 2022
In bit-patterned media recording (BPMR) systems, the readback signal is affected by neighboring islands that are characterized by intersymbol interference (ISI) and intertrack interference (ITI).
Seongkwon Jeong, Jaejin Lee
doaj   +1 more source

Improving Bit-Error-Rate Performance Using Modulation Coding Techniques for Spin-Torque Transfer Magnetic Random Access Memory

open access: yesIEEE Access, 2023
In non-volatile random-access memory (RAM) technologies, the spin-torque transfer magnetic random-access memory (STT-MRAM) is a promising candidate. STT-MRAM has attracted attention owing to its advantages, such as a high density, high endurance, and ...
Thien An Nguyen, Jaejin Lee
doaj   +1 more source

Optimized Modulation and Coding for Dual Modulated QR Codes

open access: yesIEEE Transactions on Image Processing, 2022
We present optimized modulation and coding for the recently introduced dual modulated QR (DMQR) codes that extend traditional QR codes to carry additional secondary data in the orientation of elliptical dots that replace black modules in the barcode images.
Irving R. Barron, Gaurav Sharma
openaire   +2 more sources

GNSS data demodulation over fading environments: Antipodal and M‐ary CSK modulations

open access: yesIET Radar, Sonar & Navigation, 2021
This article investigates new strategies to compute accurate low‐complexity log‐likelihood ratio (LLR) values based on the Bayesian formulation under uncorrelated fading channels for both antipodal and code shift keying modulations when no channel state ...
Lorenzo Ortega   +3 more
doaj   +1 more source

Design and Implementation of a DVB-S2 Reconfigurable Datapath BCH Encoder for High Data-Rate Payload Data Telemetry

open access: yesIEEE Access, 2023
To ensure the flexibility of Earth Observation satellite missions, it is essential to have highly adaptable communication systems equipped with efficient modulation and coding schemes.
Giovanni Quintarelli   +2 more
doaj   +1 more source

Multidimensional Modulation and Coding [PDF]

open access: yesOptical Fiber Communication Conference, 2016
We discuss how error-correction coding and modulation can be cooptimized, how modulation formats can be interpreted as codes, and the roles of soft and hard decision decoding.
Magnus Karlsson 0001, Erik Agrell
openaire   +2 more sources

Constrained codes for rank modulation [PDF]

open access: yes2014 IEEE International Symposium on Information Theory, 2014
Motivated by the rank modulation scheme, a recent work by Sala and Dolecek explored the study of constraint codes for permutations. The constraint studied by them is inherited by the inter-cell interference phenomenon in flash memories, where high-level cells can inadvertently increase the level of low-level cells.
Sarit Buzaglo, Eitan Yaakobi
openaire   +2 more sources

A Joint Modulation-Coding Scheme and Resource Allocation in LTE Uplink

open access: yesElektronika ir Elektrotechnika, 2020
In Long Term Evolution (LTE) Resource Allocation Algorithms (RAAs) are an area of work where researchers are seeking to optimize the efficient use of scarce radio resources.
Amado Gutierrez   +4 more
doaj   +1 more source

Capacity of coded index modulation [PDF]

open access: yes2015 IEEE International Symposium on Information Theory (ISIT), 2015
To appear in Proc. IEEE Int. Symp. Inf. Theory (ISIT) 2015, Hong Kong, Jun. 2015.
Natarajan Lakshmi Prasad   +2 more
openaire   +2 more sources

Constructions of rank modulation codes [PDF]

open access: yes2011 IEEE International Symposium on Information Theory Proceedings, 2011
Rank modulation is a way of encoding information to correct errors in flash memory devices as well as impulse noise in transmission lines. Modeling rank modulation involves construction of packings of the space of permutations equipped with the Kendall tau distance.
Arya Mazumdar   +2 more
openaire   +2 more sources

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