Slide 1
Agenda
Agenda
Modulation Concept
Modulation for Wireless
Main Wireless Modulation Components
Main Wireless Modulation Components
Main Wireless Modulation Components
Main Wireless Modulation Components
Main Wireless Modulation Components
Main Wireless Modulation Components
Main Wireless Modulation Components
Bit rate / Baud Rate
Bit rate / Baud Rate - Example
Bit rate / Baud Rate - Example
Why Modulate?
Slide 17
Analog modulation techniques
AM (Amplitude Modulation)
FM (Frequency Modulation)
Digital modulation techniques
Digital Modulation
Basic Digital Modulation Technique
Advantages of Digital Modulation
ASK (Amplitude Shift Keying)
ASK (Amplitude Shift Keying)
FSK (Frequency Shift Keying)
FSK (Frequency Shift Keying)
PSK (Phase Shift Keying)
FSK (Frequency Shift Keying)
FSK (Frequency Shift Keying)
QPSK (Quadrature Phase Shift Keying)
QPSK (Quadrature Phase Shift Keying)
QPSK (Quadrature Phase Shift Keying)
QPSK (Quadrature Phase Shift Keying)
QPSK (Quadrature Phase Shift Keying)
Constellation Diagrams
Constellation Diagrams
Constellation Diagrams
QPSK Constellation Diagrams
QPSK Constellation Diagrams
ASK, BPSK, QPSK Constellation Diagrams
Slide 43
Slide 44
Slide 45
QAM (Quadrature Amplitude Modulation)
QAM (Quadrature Amplitude Modulation)
QAM (Quadrature Amplitude Modulation)
QAM (Quadrature Amplitude Modulation)
QAM (Quadrature Amplitude Modulation)
spreAD spectrum (trải phổ)
Spread Spectrum Principles
Spread Spectrum Principles
Spread Spectrum Procedure
Spread Spectrum Advantages
Spread Spectrum Types
FHSS
FHSS
Frequency selection in FHSS
FHSS cycles
Bandwidth sharing
DSSS
DSSS
DSSS
DSSS - example
oFDM (orthogonal frequency division multiplexing)
OFDM and Multicarrier Transmission
OFDM and Multicarrier Transmission
OFDM and Multicarrier Transmission
OFDM and Multicarrier Transmission
OFDM and Multicarrier Transmission
OFDM and Multicarrier Transmission
OFDM and Multicarrier Transmission
OFDM and Multicarrier Transmission
OFDM and Multicarrier Transmission
OFDM and Multicarrier Transmission
OFDM Carriers
OFDM Carriers
OFDM Carriers
OFDM Spectrum
OFDM Spectrum
OFDM In Time and Frequency Domain
OFDM: Multiplex or Modulation?
OFDM: Multiplex or Modulation?
Advantages of OFDM
OFDM Transmitter
OFDM Summary
REVIEW!!! & QUESTION???