Differential Space Time Code for Free Space Optical Multiple Input Multiple Output System

2013 ◽  
Vol 33 (2) ◽  
pp. 0206004
Author(s):  
谌娟 Chen Juan ◽  
柯熙政 Ke Xizheng ◽  
程婷 Cheng Ting
Keyword(s):  
Free Space ◽  
Multiple Input Multiple Output ◽  
Space Time ◽  
Free Space Optical ◽  
Time Code ◽  
Multiple Input ◽  
Input Multiple Output ◽  
Output System

scholarly journals Performance of channels coding and space-time trellis codes on fading channel for multiple-input multiple-output free-space optical communication systems

2021 ◽  
Author(s):  
Ebrahim E. Elsayed
Keyword(s):  
Free Space ◽  
Communication Systems ◽  
Smart Antenna ◽  
Signal To Noise Ratio ◽  
Multiple Input Multiple Output ◽  
Space Time ◽  
Free Space Optical ◽  
Trellis Codes ◽  
Multiple Input ◽  
Input Multiple Output

Abstract In this paper, we review and analyze the space-time trellis codes with and without ideal beamforming. Space-time trellis code with ideal beamforming at transmitter termed as weighted space. Smart antenna technology provides a wide variety of options, ranging from single-input multiple-output architectures that collect more energy to improve the signal-to-noise ratio at the receiver, to multiple-input multiple-output (MIMO) architectures that open up multiple data pipes over a link. Atmospheric turbulence can cause significant performance degradation in free-space optical (FSO) communication systems. An efficient solution could be to exploit the temporal diversity to improve the performance of the FSO link.

Threaded Space Time Code Design for CPM with Joint Decoding

2014 ◽  
Vol 631-632 ◽  
pp. 847-850
Author(s):  
Guo Wei Lei ◽  
Yuan An Liu ◽  
Xue Fang Xiao
Keyword(s):  
Phase Modulation ◽  
Multiple Input Multiple Output ◽  
Continuous Phase ◽  
Space Time ◽  
Continuous Phase Modulation ◽  
Code Design ◽  
Time Code ◽  
Soft Decoding ◽  
Multiple Input ◽  
Input Multiple Output

In the letter, a system of continuous phase modulation (CPM) with threaded space time codes (TSTC) is proposed for multiple-input multiple-output systems. In the system, source bits are coded via outer coder of Reed Solomon (RS). The codeword of which is suitable for TSTC design. Then inner coder mainly converts binary symbols into M-ary symbols for purpose of CPM. At receiver, Joint soft decoding approach is considered. Finally simulation results are provided for VBLAST, DBLAST, and TSTC as comparison.

Free Space Optical Multiple-Input Multiple-Output Communication Based on Intensity Superposition Code

2011 ◽  
Vol 31 (7) ◽  
pp. 0706002
Author(s):  
赵顾颢 Zhao Guhao ◽  
赵尚弘 Zhao Shanghong ◽  
李勇军 Li Yongjun ◽  
王翔 Wang Xiang ◽  
朱子行 Zhu Zhihang
Keyword(s):  
Free Space ◽  
Multiple Input Multiple Output ◽  
Free Space Optical ◽  
Multiple Input ◽  
Input Multiple Output
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