Orthogonal Frequency Division Multiplexing (OFDM) is being considered for communication over wireless (acoustic) underwater channels.
This paper is a study about OFDM modulation for underwater communication system. Study of the theory of OFDM modulation is explained, and a basic simulation was made for the modulator and demodulator structure in MATLAB environment as a study experiment for modern modulation method for underwater communication systems. The symbol-error-ratio (SER) is considered as the main parameter. The simulation is performed as an SNR (signal-to-noise-ratio) versus SER comparison for transmission and reception of modulated signals. OFDM block size is changed in the simulation later to realize the behavior for transmission and reception of modulated signals and to find out how error rate changes based on the size of OFDM block size.
Annotation in English
This paper is a study about OFDM modulation for underwater communication system. Study of the theory of OFDM modulation is explained, and a basic simulation was made for the modulator and demodulator structure in MATLAB environment as a study experiment for modern modulation method for underwater communication systems. The symbol-error-ratio (SER) is considered as the main parameter. The simulation is performed as an SNR (signal-to-noise-ratio) versus SER comparison for transmission and reception of modulated signals. OFDM block size is changed in the simulation later to realize the behavior for transmission and reception of modulated signals and to find out how error rate changes based on the size of OFDM block size.
Keywords
OFDM; modulation; demodulation; underwater communication system
Keywords in English
OFDM; modulation; demodulation; underwater communication system
Length of the covering note
38
Language
CZ
Annotation
Orthogonal Frequency Division Multiplexing (OFDM) is being considered for communication over wireless (acoustic) underwater channels.
This paper is a study about OFDM modulation for underwater communication system. Study of the theory of OFDM modulation is explained, and a basic simulation was made for the modulator and demodulator structure in MATLAB environment as a study experiment for modern modulation method for underwater communication systems. The symbol-error-ratio (SER) is considered as the main parameter. The simulation is performed as an SNR (signal-to-noise-ratio) versus SER comparison for transmission and reception of modulated signals. OFDM block size is changed in the simulation later to realize the behavior for transmission and reception of modulated signals and to find out how error rate changes based on the size of OFDM block size.
Annotation in English
This paper is a study about OFDM modulation for underwater communication system. Study of the theory of OFDM modulation is explained, and a basic simulation was made for the modulator and demodulator structure in MATLAB environment as a study experiment for modern modulation method for underwater communication systems. The symbol-error-ratio (SER) is considered as the main parameter. The simulation is performed as an SNR (signal-to-noise-ratio) versus SER comparison for transmission and reception of modulated signals. OFDM block size is changed in the simulation later to realize the behavior for transmission and reception of modulated signals and to find out how error rate changes based on the size of OFDM block size.
Keywords
OFDM; modulation; demodulation; underwater communication system
Keywords in English
OFDM; modulation; demodulation; underwater communication system
Research Plan
The thesis should contain study of the feasibility of modern signal modulation methods for underwater communication.
Find out and study published information about an OFDM modulation (or other modern modulation methods) for underwater communication systems.
Study the theory of OFDM modulation, and build up the modulator and demodulator structure in MATLAB simulation environment.
Study and formulate important parameters for underwater communication, like the impedance, dissipation with its frequency dependence, propagation speed, etc. Try to find an example of a suitable transducer for transmission and reception of modulated signals.
Match parameters of the modulator and demodulator to underwater environment. Try to find maximal channel transfer capacity for a given bandwidth.
Research Plan
The thesis should contain study of the feasibility of modern signal modulation methods for underwater communication.
Find out and study published information about an OFDM modulation (or other modern modulation methods) for underwater communication systems.
Study the theory of OFDM modulation, and build up the modulator and demodulator structure in MATLAB simulation environment.
Study and formulate important parameters for underwater communication, like the impedance, dissipation with its frequency dependence, propagation speed, etc. Try to find an example of a suitable transducer for transmission and reception of modulated signals.
Match parameters of the modulator and demodulator to underwater environment. Try to find maximal channel transfer capacity for a given bandwidth.
Recommended resources
Student is supposed to find proper literature resources according to the hints of his supervisor.
Recommended resources
Student is supposed to find proper literature resources according to the hints of his supervisor.