Fading Basics: Narrow Band, Wide Band, and Spatial Channels

White Paper

Radio technologies have undergone increasingly rapid evolutionary changes in the recent past. The first cellular phones used narrow-band FM modulation, which was soon replaced by digital modulation in second & third generation devices. Today, multiple-antenna systems are being employed to increase data rates. These provide improved quality while decreasing operational costs.

This white paper guides a reader through the basic concepts of fading and into some critical RF-related topics such as:

Fading Models
Flat Fading
Why is a Signal Frequency- Selective?
Multi-path Delays and Delay Spread
Multiple antennas
Wide band Channels
Shadowing
Channel Modeling and MIMO Capacity

This former Spirent business is now part of VIAVI.

Download the White Paper

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