A Comparative Performance Analysis of Blind Equalization Algorithms in Single Carrier Visible Light Communications
- Resource Type
- Conference
- Authors
- Yasar, Sabiha; Sinop, Hayriye; Tek, Yusuf Islam; Tuna, Elif Busra; Karaerik, Kudret; Avci, Busra; Aykiri, Gazihan; Ozen, Ali
- Source
- 2020 43rd International Conference on Telecommunications and Signal Processing (TSP) Telecommunications and Signal Processing (TSP), 2020 43rd International Conference on. :595-600 Jul, 2020
- Subject
- Aerospace
Bioengineering
Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Computing and Processing
Engineered Materials, Dielectrics and Plasmas
Engineering Profession
Fields, Waves and Electromagnetics
General Topics for Engineers
Photonics and Electrooptics
Power, Energy and Industry Applications
Robotics and Control Systems
Signal Processing and Analysis
Transportation
Blind equalizers
Adaptive optics
Training
Optical receivers
Optical transmitters
Optical distortion
Optical modulation
visible light communications
multipath optical channel
blind equalization
constant modulus algorithm
channel tracking.
- Language
It is very important to estimate and equalize the multipath optical channel blindly in visible light communication (VLC) systems. It is recommended that it is used Constant Modulus Algorithm (CMA), modified CMA (M-CMA) and normalized CMA (N-CMA) algorithms, which are among the most commonly used blind equalization algorithms to eliminate inter-symbol interference (ISI) caused by a multipath optical channel in a closed environment in this paper. Computer simulations and comparative performance analysis of the algorithms mentioned above are performed over the Mean Square Error (MSE) and ISI performance metrics in stationary and non-stationary environment. It is observed that the best performances are obtained with M-CMA algorithm in MSE comparisons and the best performances are obtained with NCMA algorithm in ISI comparisons from the computer simulation results.