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Digital transmission over flat fading

Digital transmission over flat fading

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This chapter studies the effect of fading channels on digital wireless transmission. After reviewing the basics of digital bandpass modulation, we investigate the effect of channel phase and channel amplitude on the detection performance of linear modulation schemes. Finally, we present the statistical fading channel models for various fading scenarios and apply them to the performance analysis of digital wireless transmission, in terms of outage probability and average error rate.

Chapter Contents:

  • 4.1 Basics of digital bandpass transmission
  • 4.2 Linear bandpass modulation
  • 4.3 Optimal detection in presence of AWGN
  • 4.4 Detection performance over AWGN channel
  • 4.5 Effect of flat fading channel phase
  • 4.5.1 Channel estimation
  • 4.5.2 Differential modulation
  • 4.5.3 π/4 Differential QPSK
  • 4.6 Effect of flat fading channel magnitude
  • 4.6.1 Performance measures
  • 4.6.2 Statistical models for flat fading channel gain
  • 4.7 Performance analysis over fading channels
  • 4.7.1 Outage analysis
  • 4.7.2 PDF-based average error rate analysis
  • 4.7.3 MGF-based average error rate analysis
  • 4.8 Further readings
  • Problems
  • Bibliography

Inspec keywords: telecommunication network reliability; amplitude modulation; probability; fading channels

Other keywords: statistical fading channel models; channel amplitude; digital bandpass modulation; flat fading; digital wireless transmission; outage probability; channel phase; linear modulation schemes

Subjects: Modulation and coding methods; Radio links and equipment; Reliability; Other topics in statistics

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