Outline
Dav One - Common Signal Parameters, Modulation Types
Common Background Issues and Tools
• What is keying? • Signaling definitions • polar and rectangular equivalence • time-spectrum correspondences • symbol construction • filtering characteristics • the special properties of Nyquist filters • simples vs. duplex •
constellation and vector diagrams • eye diagrams • SNR vs. Eb/No
Modulation Types
ASK (Amplitude-shift keying)
• Definitions • constellations • occupied bandwidth • bandwidth efficiency • power efficiency • PAPR • envelope statistics • energy efficiency • demodulation principles • introduction to noise performance
FSK (Frequency-shift keying)
• Definitions • phase tree • occupied bandwidth • bandwidth efficiency • power efficiency •
Doppler shift • energy efficiency • signal limiting • demodulation principles • introduction to noise performance • FM threshold effect
Day Two - PSK and QAM Modulations
PSK (Phase-shift keying)
• Definitions •
constellations • Why nearly all PSK signals are really QAM •
CPM is not a PSK • offset PSK • occupied bandwidth • bandwidth efficiency • power efficiency • PAPR • envelope statistics • energy efficiency • Doppler tolerance • demodulation principles • introduction to noise performance
QAM (Quadrature Amplitude Modulation)
• Definitions • constellations and signal structure • occupied bandwidth • bandwidth efficiency • power efficiency • PAPR • envelope statistics • offset QAM • Doppler tolerance • energy efficiency • demodulation principles • introduction to noise performance
Day Three - Systems and Applications
OFDM (Orthogonal Frequency Division Multiplex)
• Definitions • constellations • occupied bandwidth • bandwidth efficiency • power efficiency • PAPR • envelope statistics • energy efficiency • Doppler intolerance • demodulation principles • introduction to noise performance
Antennas and Wireless Propagation
• Path Loss • Transmit Power •
Antenna Gain • Antenna Directivity • Near and Far Fields • Polarization • Receive Sensitivity • Range Expectations • Level Diagrams • Delay Spread •
Diversity • Correlation
Shannon’s Capacity Limit
• Shannon’s Fundamental Theorem on Information Theory • Shannon-Hartley equation • capacity density • SNR vs. Eb/No forms • finite available power • power vs. bandwidth • signal design region
Principles of Coding
• Motivations • definitions • coding for bandwidth efficiency • coding for spectrum control and link operation •
coding for error control
- block codes, convolutional codes, turbo codes • coding to manage error bursts • coding for channel throughput (MIMO) •
equalizationSpread Spectrum
•
Direct Sequence and Frequency Hopping • cyclic cancellation • synchronization • interference suppression • process gain • jamming margin • chips and spreading codes •
frequency hopping details • direct sequence details • DS vs. FH comparison
Cost Comparisons among Signal Implementations
• The Keep-It-Simple (KIS) Procedure