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© 2002 Pearson Education, Inc. Commercial use, distribution, or sale prohibited. Wireless Communications Principles and Practice 2 nd Edition T.S. Rappaport Chapter 5: Mobile Radio Propagation: Small-Scale Fading and Multipath as it applies to Modulation Techniques
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© 2002 Pearson Education, Inc. Commercial use, distribution, or sale prohibited. Doppler Shift Geomerty
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© 2002 Pearson Education, Inc. Commercial use, distribution, or sale prohibited. Channel issues
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© 2002 Pearson Education, Inc. Commercial use, distribution, or sale prohibited. Complex Baseband model for RF systems
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© 2002 Pearson Education, Inc. Commercial use, distribution, or sale prohibited. Time-varying impulse response
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© 2002 Pearson Education, Inc. Commercial use, distribution, or sale prohibited. Measured impulse responses
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© 2002 Pearson Education, Inc. Commercial use, distribution, or sale prohibited. Channel Sounder: Pulse type
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© 2002 Pearson Education, Inc. Commercial use, distribution, or sale prohibited. Channel Sounder: PN Type
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© 2002 Pearson Education, Inc. Commercial use, distribution, or sale prohibited. Channel Sounder: Swept Freq. type
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© 2002 Pearson Education, Inc. Commercial use, distribution, or sale prohibited. Measured power delay profiles
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© 2002 Pearson Education, Inc. Commercial use, distribution, or sale prohibited. Indoor Power Delay Profile
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© 2002 Pearson Education, Inc. Commercial use, distribution, or sale prohibited. Typical RMS delay spreads
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© 2002 Pearson Education, Inc. Commercial use, distribution, or sale prohibited. Two independent fading issues
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© 2002 Pearson Education, Inc. Commercial use, distribution, or sale prohibited. Flat-fading (non-freq. Selective)
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© 2002 Pearson Education, Inc. Commercial use, distribution, or sale prohibited. Frequency selective fading
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© 2002 Pearson Education, Inc. Commercial use, distribution, or sale prohibited. Two independent fading issues
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© 2002 Pearson Education, Inc. Commercial use, distribution, or sale prohibited. Rayleigh fading
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© 2002 Pearson Education, Inc. Commercial use, distribution, or sale prohibited. Small-scale envelope distributions
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© 2002 Pearson Education, Inc. Commercial use, distribution, or sale prohibited. Ricean and Rayleigh fading distributions
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© 2002 Pearson Education, Inc. Commercial use, distribution, or sale prohibited. Small-scale fading mechanism
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© 2002 Pearson Education, Inc. Commercial use, distribution, or sale prohibited. Doppler spectrum
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© 2002 Pearson Education, Inc. Commercial use, distribution, or sale prohibited. Spectrum of Envelope of doppler faded signal
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© 2002 Pearson Education, Inc. Commercial use, distribution, or sale prohibited. Simulating Doppler/Small-scale fading
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© 2002 Pearson Education, Inc. Commercial use, distribution, or sale prohibited. Simulating Doppler fading
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© 2002 Pearson Education, Inc. Commercial use, distribution, or sale prohibited. Simulating Doppler fading
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© 2002 Pearson Education, Inc. Commercial use, distribution, or sale prohibited. Simulating multipath with Doppler- induced Rayleigh fading
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© 2002 Pearson Education, Inc. Commercial use, distribution, or sale prohibited. Simulating 2-ray multipath
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© 2002 Pearson Education, Inc. Commercial use, distribution, or sale prohibited. SIRCIM – Simulation of all indoor propagation Characteristics
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© 2002 Pearson Education, Inc. Commercial use, distribution, or sale prohibited. SMRCIM – Simulation of all outdoor propagation Characteristics
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© 2002 Pearson Education, Inc. Commercial use, distribution, or sale prohibited. SIRCIM and SMRCIM Available from Wireless Valley Communications, Inc. Source code in C is available www. Wirelessvalley.com
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© 2002 Pearson Education, Inc. Commercial use, distribution, or sale prohibited. Angular Spread model
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© 2002 Pearson Education, Inc. Commercial use, distribution, or sale prohibited. Spatial distribution of Multipath
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© 2002 Pearson Education, Inc. Commercial use, distribution, or sale prohibited. Angular Spread key to fading
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© 2002 Pearson Education, Inc. Commercial use, distribution, or sale prohibited. Spatial orientation of multipath impacts the depths of fading
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© 2002 Pearson Education, Inc. Commercial use, distribution, or sale prohibited. Angular Distribution of power
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© 2002 Pearson Education, Inc. Commercial use, distribution, or sale prohibited. Angular Spread predicts correlation distances
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© 2002 Pearson Education, Inc. Commercial use, distribution, or sale prohibited. Angular Spread predicts correlation distances
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