Results 31 to 40 of about 41,621 (188)

Uncoded Binary Signaling through Modulo AWGN Channel [PDF]

open access: yes2020 54th Asilomar Conference on Signals, Systems, and Computers, 2020
Modulo-wrapping receivers have attracted interest in several areas of digital communications, including precoding and lattice coding. The asymptotic capacity and error performance of the modulo AWGN channel have been well established. However, due to underlying assumptions of the asymptotic analyses, these findings might not always be realistic in ...
Tabak, Gizem, Singer, Andrew
openaire   +2 more sources

Socioeconomic Implications of Water Pollution in an Urban Environment A Case Study in Meda Ela Catchment, Kandy, Sri Lanka

open access: yesTropical Agricultural Research, 2011
Meda Ela is a tributary of Mahaweli river. It has a complex catchment area with diverse type of land uses including densely populated urban areas. With urbanization and population pressure, Meda Ela is increasingly getting polluted due to direct disposal
AWGN Abeygunawardane   +2 more
doaj   +1 more source

A Model of OFDM based Maritime VHF Communication System for Data Exchange

open access: yesPolish Maritime Research, 2018
In the maritime Very High Frequency (VHF) band, there are no systems for transmitting large amounts of data. Therefore, it is necessary to develop new systems that would modernize the Global Maritime Distress and Safety System (GMDSS), significantly ...
Valčić Sanjin   +2 more
doaj   +1 more source

Performance Analysis of Bipolar Optical Code Division Multiple Access with Dual Electro-Optical Modulator Scheme for Free-Space Optical Communication

open access: yesTechne, 2021
In this study, the performance of bipolar optical code division multiple access (OCDMA) with dual electro-optical modulator (EOM) scheme for multi-user scenario was tested and analyzed with OptiSystem version 10.
Eddy Wijanto
doaj   +1 more source

Cooperative Relay Broadcast Channels [PDF]

open access: yes, 2005
The capacity regions are investigated for two relay broadcast channels (RBCs), where relay links are incorporated into standard two-user broadcast channels to support user cooperation.
Liang, Yingbin, Veeravalli, Venugopal V.
core   +4 more sources

Resource-Efficient Fusion over Fading and Non-Fading Reporting Channels for Cooperative Spectrum Sensing

open access: yesSensors, 2015
Recently, a novel resource-efficient technique for the reporting channel transmissions in cooperative spectrum sensing was proposed. In this technique, secondary users are allowed to simultaneously send their local decisions to the fusion center, saving ...
Dayan Adionel Guimarães   +1 more
doaj   +1 more source

Coding in the Finite-Blocklength Regime: Bounds based on Laplace Integrals and their Asymptotic Approximations

open access: yes, 2016
In this paper we provide new compact integral expressions and associated simple asymptotic approximations for converse and achievability bounds in the finite blocklength regime.
Erseghe, Tomaso
core   +1 more source

Nonlinearity Mitigation in WDM Systems: Models, Strategies, and Achievable Rates [PDF]

open access: yes, 2018
After reviewing models and mitigation strategies for interchannel nonlinear interference (NLI), we focus on the frequency-resolved logarithmic perturbation model to study the coherence properties of NLI.
Agrell, Erik   +4 more
core   +2 more sources

Design and Analysis of Grouping Active Subcarrier Frequency-Time Index Modulation for Differential Chaos Shift Keying Communication System

open access: yesJournal of Communications Software and Systems
In this paper, an innovative system called grouping frequency-time index modulation-based differential chaos shift keying (GFTIM-DCSK-I) is presented to improve the energy efficiency (EE), spectral efficiency, and data rate of the recently proposed ...
Ruaa Abdulkareem Yaseen, Fadhil S. Hasan
doaj   +1 more source

Comparison of the pituitary gland transcriptome in pregnant and non-pregnant goats (Capra hircus)

open access: yesCzech Journal of Animal Science, 2019
Pregnancy is strictly regulated by neuronal and hormonal factors with an essential role being played by the pituitary gland. We screened for differentially expressed genes (DEGs) in the pituitary that function in goat gestational development.
Qing Quan   +10 more
doaj   +1 more source

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