Adaptive Phase-Offset Compensation on Fragmented Constellation Diagrams in Radio-over-Fiber Systems

2018 ◽  
Author(s):  
Eduardo Avendaño Fernández ◽  
Giovanni Serafino ◽  
Antonella Bogoni ◽  
Ana M. Cárdenas Soto ◽  
Francesco Fresi ◽  
...  
Keyword(s):  
Radio Over Fiber ◽  
Phase Offset ◽  
Offset Compensation

scholarly journals Algorithm for frequency capture and rectification in a low-orbit satellite IoT communication network

2021 ◽  
Vol 18 (6) ◽  
pp. 7999-8023
Author(s):  
Jie Shen ◽  
◽  
Hanming Liu ◽  
Jing Wang ◽  
Xia Jia ◽  
...  
Keyword(s):  
Communication Network ◽  
Communication Systems ◽  
Satellite Communication ◽  
Doppler Frequency ◽  
Frequency Offset ◽  
Phase Offset ◽  
Frequency Capture ◽  
Simulation Results ◽  
The Doppler Effect ◽  
Offset Compensation

<abstract> <p>In satellite communication systems, due to relative motion between satellites and that between satellites and the ground, the resulting Doppler frequency offset adversely affects communication synchronization. In this research, Doppler frequency offset compensation and phase offset compensation method eliminate the influence of the Doppler effect on synchronization. The proposed algorithm divides frequency estimate into two steps, coarse and precision. Finally, the corresponding frequency offset and phase offset compensation are performed. The simulation results show that the demodulated output results after frequency offset and phase offset compensation agree well with the original modulation data, indicating that the algorithm is valid and accurate.</p> </abstract>

Radio-over-Fiber Systems for Wireless Communications

2011 ◽  
Vol 4 (2) ◽  
pp. 114-124 ◽  
Author(s):  
Alejandro Aragon-Zavala ◽  
Gerardo Castanon ◽  
Joaquin Beas
Keyword(s):  
Wireless Communications ◽  
Radio Over Fiber
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