Results 31 to 40 of about 12,277 (211)

Concatenated Coding for the AWGN Channel With Noisy Feedback [PDF]

open access: yesIEEE Transactions on Information Theory, 2011
The use of open-loop coding can be easily extended to a closed-loop concatenated code if the channel has access to feedback. This can be done by introducing a feedback transmission scheme as an inner code. In this paper, this process is investigated for the case when a linear feedback scheme is implemented as an inner code and, in particular, over an ...
Zachary Chance, David James Love
openaire   +3 more sources

Fast and accurate estimation of multifrequency signals with noise and harmonics in control of photovoltaic systems

open access: yesThe Journal of Engineering, 2019
Photovoltaic systems are the important part of the energy market in many countries around the world. Such systems contain several parts and one of them is the inverter to produce the AC signal.
Dariusz Kania, Jozef Borkowski
doaj   +1 more source

An energy harvesting AWGN channel with a finite battery [PDF]

open access: yes2014 IEEE International Symposium on Information Theory, 2014
In energy harvesting communication systems, the transmitter is adapted to harvest energy per time slot. The harvested energy is either used right away or is stored in a battery to facilitate future transmissions. We consider the problem of determining the Shannon capacity of an energy harvesting transmitter communicating over an additive white Gaussian
Jog, Varun, Anantharam, Venkat
openaire   +1 more source

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

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

The Method of Types for the AWGN Channel

open access: yesEntropy
For the discrete-time AWGN channel with a power constraint, we give an alternative derivation for the sphere-packing upper bound on the optimal block error exponent and an alternative derivation for the analogous lower bound on the optimal correct-decoding exponent. The derivations use the method of types with finite alphabets of sizes depending on the
Tridenski, Sergey, Somekh-Baruch, Anelia
openaire   +6 more sources

A Note on Probabilistic and Geometric Shaping for the AWGN Channel [PDF]

open access: yesIEEE Communications Letters, 2020
When considering coded modulation schemes for the AWGN channel, two main practical limitations prevent achieving channel capacity, namely the need to use a finite constellation and coding inefficiencies. Constellation shaping was given new impetus in recent works by Bocherer et al. , which combined probabilistically shaped ASK constellations with LDPC
Modonesi R.   +3 more
openaire   +3 more sources

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

A New Bound to Error Probability on AWGN Channels: From Folded Coding to Gaussian Random Coding

open access: yesIEEE Open Journal of the Communications Society, 2022
A new bound on the error probability of coding with limited code length over additive white Gaussian noise (AWGN) channels is proposed. The developed bound is proved to be universal for two connected encoding ways.
Dengsheng Lin, Yue Xiao
doaj   +1 more source

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

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