1-Terabit/s Net Data-Rate Transceiver Based on Single-Carrier Nyquist-Shaped 124 GBaud PDM-32QAM

2015 ◽  
Author(s):  
R. Rios-Müller ◽  
J. Renaudier ◽  
P. Brindel ◽  
H. Mardoyan ◽  
P. Jennevé ◽  
...  
Keyword(s):  
Data Rate ◽  
Single Carrier

scholarly journals Data rate profiles of coded/uncoded power line channel with single-carrier/multicarrier modulation techniques

2018 ◽  
Vol 14 (1) ◽  
pp. 23-29
Author(s):  
Samuel Adebisi ◽  
Samson A. Oyetunji
Keyword(s):  
Data Transmission ◽  
Communication Channel ◽  
Forward Error Correction ◽  
Low Voltage ◽  
Power Line ◽  
Data Rate ◽  
Multicarrier Modulation ◽  
Power Line Communication ◽  
Single Carrier ◽  
Modulation Techniques

Abstract The power-line communication (PLC) technique involves sending information through an electrical conductor for a commercial or domestic purpose. Lately, electronic means of communication have gained popularity for the transfer of information. Conversely, there is an increased requirement for more transmission media, like the use of power line as a communication channel for remote data delivery. This paper focuses on determining the data rate profile achievable using the single-carrier/multicarrier modulation techniques with Reed- Solomon concatenated convolutional (RS-CC) codes for data transmission through a power line channel. In this investigation, MATLAB/SIMULINK was used to explore a low-voltage power line as a communication channel for high data transmission rate. Data transmission was accomplished by utilizing a parametric model of a power line channel with the different kinds of noise considered in the simulation. In the designed power-line communication (PLC) system, single-carrier modulation offered a maximum of 14.4 Mbps reduction in the data rate when the uncoded 64-quadrature amplitude modulation (QAM) was compared to coded 64-QAM with 1/2 forward error correction (FEC). In the OFDM power-line communication (PLC) system, the decrease in the data rate was maximal at 39 Mbps when the uncoded 16-QAM was contrasted with the 16-QAM having 1/2 FEC. It was evident that the increased code rate of the PLC system using single-carrier and OFDM modulation implied increased data rate profiles

scholarly journals Mitigation of Non-linear Distortion Using PTS and IDAR Method for Multi-Level QAM-OFDM System

1970 ◽  
Vol 1 (2) ◽  
pp. 84-90
Author(s):  
Pisit Boonsrimuang ◽  
Pornpawit Boonsrimuang ◽  
Kazuo Mori ◽  
Tawil Paungma ◽  
Hideo Kobayashi
Keyword(s):  
Communication Systems ◽  
Satellite Communication ◽  
Data Rate ◽  
Modulation Method ◽  
Reconstruction Method ◽  
Multimedia Services ◽  
Single Carrier ◽  
Transmission Data ◽  
Non Linear ◽  
Multi Level

The future satellite communication systems are required to support the higher transmission data rate for providing the multimedia services by employing the efficient modulation method such as multi-level QAM. The employment of single carrier transmission with multi-level QAM would cause the fatal degradation of signal quality due to the non-linear amplifiers located at the earth station and satellite. To overcome this problem, we have proposed the multilevel QAM-OFDM technique with IDAR (Improved Decision Aided Reconstruction) method designed for non-linear satellite channel. However, the proposed method could not mitigate the non-linear distortion sufficiently when modulation level becomes higher such as 64QAM. This paper proposes the combined scheme of partial transmission sequence (PTS) and OFDM-IDAR methods so as to enable the usage of higher multi-level QAM method, which can achieve the higher transmission data rate with keeping the better bit error rate performance in the non-linear satellite channel. The various computer simulations are conducted in this paper to verify the effectiveness of proposed method in the non-linear satellite channel.

Capacity-Fairness Controllable Scheduling Algorithms for Single-Carrier FDMA

2014 ◽  
Vol E97.B (7) ◽  
pp. 1474-1482 ◽  
Author(s):  
Takayoshi IWATA ◽  
Hiroyuki MIYAZAKI ◽  
Fumiyuki ADACHI
Keyword(s):  
Scheduling Algorithms ◽  
Single Carrier
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