A Proposed Implementation of Raptor Code using a Microcontroller

Author(s):  
Sattar B. Sadkhan ◽  
Lafta Akeel A. Lafta
Keyword(s):  
2021 ◽  
Author(s):  
Mohsen El-Bendary

Abstract Due to the expected essential role of the rate-less digital fountain codes and Massive-Multi-Input Multi-Output (M-MIMO) techniques in the 5G and 6G mobile wireless networks, this paper investigates the performance of M-MIMO enhancing system employing the Raptor code. The proposed M-MIMO-Raptor code based system has been tested over the different wireless communications channel conditions with respect to the various Frequency Doppler (FD). The various promising technologies for the beyond 5G and 6G have been presented with focusing on the advanced error control techniques. The flexible adaptive interleaved pre-code based on the channel conditions is suitable for 6G mobile wireless networks which integrates the various environments of the communications. The complexity of the advanced and fixed code rate schemes is discussed. Several computer simulation experiments are carried out for evaluating the performance of M-MIMO-rate-less code system. These experiments prove the superiority of the presented wireless rate-less system compared to the fixed rate wireless system due to the improved results of BER and the throughput values which are utilized as a performance evaluating metrics. Theoretical analysis of the M-MIMO throughput proves the enhancing of M-MIMO utilizing the rate-less Raptor code and its applicability for the next mobile wireless networks generations.


Author(s):  
Patrick Maget ◽  
Pierre Manas ◽  
Jean-Francois Artaud ◽  
Clarisse Bourdelle ◽  
Jerome B Bucalossi ◽  
...  

Abstract Achieving a successful plasma current ramp-up in a full Tungsten tokamak can be challenging due to the large core radiation (and resulting low core temperature) that can be faced with this heavy metallic impurity if its relative concentration is too high. Nitrogen injection during the plasma current ramp-up of WEST discharges greatly improves core temperature and Magneto-Hydro-Dynamic stability. Experimental measurements and integrated simulations with the RAPTOR code complemented with the Qualikiz Neural Network for computing turbulent transport allow a detailed understanding of the mechanisms at play. Increased edge radiation during this transient phase is shown to improve confinement properties, driving higher core temperature and better MHD stability. This also leads to increased operation margins with respect to Tungsten contamination.


2017 ◽  
Vol 59 (12) ◽  
pp. 124004 ◽  
Author(s):  
A A Teplukhina ◽  
O Sauter ◽  
F Felici ◽  
A Merle ◽  
D Kim ◽  
...  
Keyword(s):  

2012 ◽  
Vol 60 (9) ◽  
pp. 2377-2381 ◽  
Author(s):  
Kaveh Mahdaviani ◽  
Masoud Ardakani ◽  
Chintha Tellambura
Keyword(s):  

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