WiFi and Bluetooth RF Aspects: Standards, Systems, and Measurements

Course 269

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Summary

Successful integration of WiFi and or Bluetooth features into a product requires more than simply finding room on the board to place "off the shelf" chips. A proper understanding of how the radios work and the issues that they face will allow you to achieve a successful implementation with fewer expensive surprizes. This two day course provides a working knowledge of how the standards operate to guide your integration efforts.

Learning objectives

Upon completing the course you will be able to:

  • appreciate the relationship between data rates and power consumption
  • follow the evolution of 802.11 standards
  • estimate the operating range of your devices
  • interpret performance measurements of the transceiver components
  • understand how Bluetooth and WiFi transceivers impact each other

Target Audience

Hardware engineers wishing to work with WiFi and or Bluetooth technology. Basic knowledge of engineering concepts is assumed.

Outline

Day One

Digital Modulation and OFDM Fundamentals
 • QAM • OFDM • 802.11 Modulator Block Diagram • Frequency Errors
WLAN Standards and Implications
 • 802.11 Standards - a/b/g • 802.11n • 802.11 ac • Frame formats • Spectra and constellations • TX power and frequency • Receiver requirements • Bluetooth Standards • Bluetooth EDR, LE
RF Propagation
 • Free space propagation • Indoor propagation • Reflection, diffraction, multipath cancellation • Models • Link Budget • MIMO Techniques
MIMO and Space-Time Coding
 • MIMO in 802.11n and 802.11ac • Beamforming • CSD Cyclic Shift Diversity • MRC Maximal Ratio Combining • Spacial Division Multiplexing SDMA • STBC Space Time Block Coding

Day Two

 • Direct conversion ZIF
Transceiver System Considerations
RF Component-level Measurements
 • Power measurements • Noise figure • Phase noise • Intermodulation IP3 • AM-AM AM-PM • EVM
Receiver Measurements
 • BER • Sensitivity • Receiver blocking • Selectivity • Spurious response
Transmitter Measurements
 • power-on and power-down ramp • ACP • WLAN / Bluetooth coexistence • Front end overload • Adaptive frequency hopping • Channel skipping • Architectural options