- Introduction to Wireless Technologies
- A Brief History of Wireless Communications
- The Continuing Evolution of Wireless Technologies
- Modern Wireless Technologies
- Overview of Cellular Radio Systems and Components
- Evolution of Cellular Networks
- Radio Wave Characteristics
- Using the TI-30 Scientific Calculator
- The Electromagnetic Spectrum
- Propagation Modes of Radio Waves
- Radio Spectrum: Licensed and License Exempt
- Fundamental Radio Concepts
- Basics of Information Transfer for Radio
- Working with Decibels: Gains, Losses, Power, Conversions
- Voice Compression Techniques for Digital Radio
- Basic Radio System Components
- Wireless Impairments: Internal Noise and Distortion
- Digital Modulation and Error Correction Techniques
- Analog Modulation: AM and FM
- Basic Digital Modulation Schemes: ASK, FSK, PSK
- Processing for Digital Modulation
- Getting More Bits per Baud
- Modern Error Correction Techniques
- Physical Layers and Multiple Access Techniques
- Basic Access Techniques: FDMA and TDMA
- GPRS Evolution to Packet Switching
- Spread Spectrum and CDMA
- High Speed CDMA-based Technologies: 1XEV-DO and HSPA
- OFDM and OFDMA
- LTE: The Next Evolutionary Step in Cellular Radio
- LTE Advanced for Greater Throughput
- Introduction to GSM: Air Interface, Core Network and Operation
- GSM History and Deployment status
- GSM System Architecture
- The GSM Air Interface (MS-BSS)
- Network Switching Subsystem (NSS): The Core Network
- NSS Components
- GSM Mobility Management
- Basics of Antennas and Antenna Systems
- E-M Field Radiation: Intentional and Unintentional
- Basic Antenna Types and Uses
- Basic Antenna Characteristics
- Antenna Field Regions
- Care and Feeding of Antennas
- Antenna Diversity Techniques
- Advanced Antenna Systems: Adaptive Arrays and MIMO
- Link Budget Analysis Techniques
- Noise and Noise Sources
- Link Budget Considerations
- Budgeting the Radio Link
- Line-of-Sight Radio Propagation
- Defining Line-of-Sight: Fresnel Zone Clearance
- Earth’s Curvature and the Radio Horizon
- Reflection, Refraction and Scattering in LOS Propagation
- Line-of-Sight Path Loss Analysis
- The Non-Line-of-Sight Propagation Environment
- Non-Line-of-Sight Propagation Mechanisms
- Coherence Time and Coherence Bandwidth
- Impairments Due to Time Dispersal of a Radio Signal
- Dealing with Problems Due to Time Dispersal
- Modeling Propagation Loss in a NLOS Environment
- Wrap-up
- Course Recap and Q/A
- Evaluations
Exercises and Simulations Performed in This Course:
- Wavelength/frequency conversion
- Using decibels: Power levels, gains and adding ratios
- Converting among different signal level references
- Amplifier back-off vs. efficiency
- Determining the thermal noise seen by an antenna
- Receiver noise contribution; Noise Figure
- Determining the bit rate of a channel
- Determining theoretical symbol error rate
- OFDM and orthogonality simulation
- CDMA and processing gain simulation
- Determining aperture antenna gain
- Antenna pattern evaluation; beam-width and front-to-back ratio
- Determining antenna reactive and radiative near fields
- Converting between VSWR and Return Loss
- Comparing % reflected power and return loss measurements
- Phase combining simulation
- Performing a simple RF power budget
- Converting gain and NFdB to linear ratios
- Performing cascade analysis of a cellular radio receive system
- Performing LOS link budget using manuf. equip. specifications
- Determine LOS and NLOS margin based on service objectives
- Determining LOS radio horizon
- Determining Fresnel zone clearance
- Performing a free-space path loss analysis
- Determining link reliability based on rain fade margin
- Estimating diffraction gain for obstacle in radio path
- Determining the coherence bandwidth for a given environment
- Estimating the RMS delay spread of an open area
- Determining the coherence time for a given Doppler spread
- Estimating NLOS path loss using the Log Distance formula
- Comparing expected loss for several models in a given environment