Efficient multi-LED dimming control scheme with space–time codes for VLC systems

2020 ◽  
Vol 59 (28) ◽  
pp. 8553 ◽  
Author(s):  
Jianing Guo ◽  
Jian Zhang ◽  
Yanyu Zhang ◽  
Gang Xin
Keyword(s):  
Space Time ◽  
Space Time Codes ◽  
Control Scheme ◽  
Dimming Control

scholarly journals Constant Transmission Efficiency Dimming Control Scheme for VLC Systems

Photonics ◽  
2020 ◽  
Vol 8 (1) ◽  
pp. 7
Author(s):  
Jia-Ning Guo ◽  
Jian Zhang ◽  
Gang Xin ◽  
Lin Li
Keyword(s):  
Visible Light Communication ◽  
Transmission Efficiency ◽  
Error Performance ◽  
Constant Weight ◽  
Block Coding ◽  
Control Scheme ◽  
Control Schemes ◽  
Indoor Wireless ◽  
Communication Function ◽  
Dimming Control

As a novel mode of indoor wireless communication, visible light communication (VLC) should consider the illumination functions besides the primary communication function. Dimming control is one of the most crucial illumination functions for VLC systems. However, the transmission efficiency of most proposed dimming control schemes changes as the dimming factor changes. A block coding-based dimming control scheme has been proposed for constant transmission efficiency VLC systems, but there is still room for improvement in dimming range and error performance. In this paper, we propose a dimming control scheme based on extensional constant weight codeword sets to achieve constant transmission efficiency. Meanwhile, we also provide a low implementation complexity decoding algorithm for the scheme. Finally, comparisons show that the proposed scheme can provide a wider dimming range and better error performance.

Simplified lattice decoding for orthogonal space-time codes

2003 ◽  
Author(s):  
L.H. Beygi ◽  
A.R. Ghaderipoor ◽  
K. Dolatyar ◽  
A. Olfat ◽  
Sh. Jamali
Keyword(s):  
Space Time ◽  
Space Time Codes ◽  
Orthogonal Space ◽  
Lattice Decoding

Efficient ML Decoder for Quasi-orthogonal Space-Time Codes When Using QAM Constellation

2008 ◽  
Author(s):  
Andrei Alexandru Enescu ◽  
Silviu Ciochina ◽  
Constantin Paleologu
Keyword(s):  
Space Time ◽  
Space Time Codes ◽  
Orthogonal Space

Group-Decodable Diversity Embedded Space-Time Codes

2010 ◽  
Author(s):  
Tian Peng Ren ◽  
Yong Liang Guan ◽  
Chau Yuen ◽  
Er Yang Zhang
Keyword(s):  
Space Time ◽  
Space Time Codes

On the Performance of Diagonal Lattice Space-Time Codes

2013 ◽  
Vol 12 (11) ◽  
pp. 5717-5727
Author(s):  
Walid Abediseid ◽  
Mohamed-Slim Alouini
Keyword(s):  
Space Time ◽  
Space Time Codes ◽  
Lattice Space
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