Results 71 to 80 of about 1,161 (180)

Design of LDPC code for uncorrelated Rayleigh fading channel using modified outage probability

open access: yesICT Express
In this paper, we propose a new design metric called modified outage probability (MOP) for protograph-based low-density parity-check (LDPC) codes over the uncorrelated Rayleigh fading channel.
Woong-Shin Kwak, Jae-Won Kim
doaj   +1 more source

Finite Length Analysis of Low-Density Parity-Check Codes on Impulsive Noise Channels

open access: yesIEEE Access, 2016
Low-density parity-check (LDPC) codes with very long block lengths are well known for their powerful error correction, but it is not always desirable to employ long codes in communication systems, where latency is a serious issue, such as voice and video
Zhen Mei   +3 more
doaj   +1 more source

Dynamic Continuous Variable Quantum Key Distribution for Securing a Future Global Quantum Network

open access: yesAdvanced Quantum Technologies, Volume 8, Issue 10, October 2025.
The article explores securing a dynamic global quantum network using continuous variable QKD, proposing a unified three‐layer network architecture for integrating existing QKD networks. It evaluates secret key rates across various channels and introduces the link capacity as a metric for determining the optimum path for secret key distribution in a ...
Mikhael T. Sayat   +4 more
wiley   +1 more source

Design of rate-compatible LDPC codes based on uniform shortening distribution

open access: yesEngineering and Applied Science Research, 2018
Information shortening is a methodology to construct rate-compatible codes. Recently, LDPC codes have been shown that uniform shortening distribution is a criterion to achieve excellent performance.
Arisa Wongsriwor   +2 more
doaj   +1 more source

Coded Cooperation for Multiway Relaying in Wireless Sensor Networks

open access: yesSensors, 2015
Wireless sensor networks have been considered as an enabling technology for constructing smart cities. One important feature of wireless sensor networks is that the sensor nodes collaborate in some manner for communications.
Zhongwei Si, Junyang Ma, Ragnar Thobaben
doaj   +1 more source

Jointly designed quasi-cyclic LDPC-coded cooperation with diversity combining at receiver

open access: yesInternational Journal of Distributed Sensor Networks, 2020
This correspondence proposes a jointly-designed quasi-cyclic (QC) low-density parity-check (LDPC)-coded multi-relay cooperation with a destination node realized by multiple receive antennas.
Muhammad Asif   +5 more
doaj   +1 more source

Differentially Encoded LDPC Codes—Part II: General Case and Code Optimization

open access: yesEURASIP Journal on Wireless Communications and Networking, 2008
This two-part series of papers studies the theory and practice of differentially encoded low-density parity-check (DE-LDPC) codes, especially in the context of noncoherent detection. Part I showed that a special class of DE-LDPC codes, product accumulate
Jing Li (Tiffany)
doaj   +1 more source

Sparse Regression LDPC Codes

open access: yesIEEE Transactions on Information Theory
This work has been submitted to the IEEE for possible publication.
Jamison R. Ebert   +2 more
openaire   +2 more sources

Jointed LDPC codes design for half-duplex relay channels

open access: yesTongxin xuebao, 2013
In order to increase the coding gain of decode-and-forward half-duplex relay channel, a jointed LDPC coding structure and its corresponding optimization scheme was proposed. Novel structure made the subcodes of both source and relay nodes as parts of the
Zi-qiang CHEN   +3 more
doaj   +2 more sources

Analisis Kinerja Jaringan 5G dengan Pengkodean QC-LDPC dan Polar

open access: yesJurnal Elkomika
ABSTRAK Jaringan 5G telah menjadi penanda penting dalam evolusi teknologi nirkabel yang menawarkan kecepatan dan kinerja yang luar biasa untuk memenuhi kebutuhan konektivitas yang semakin meningkat.
RENI DYAH WAHYUNINGRUM   +3 more
doaj   +1 more source

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