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Delay Spread Formula

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Delay Spread is a modulation technique used in CDMA systems to enable multiple users to share the same frequency band efficiently while maintaining their signal integrity and minimizing interference. Check FAQs

Δ = \frac{1}{2 \cdot 3.14 \cdot B fad}

Δ - Delay Spread?B_fad - Coherence Bandwidth Fading?

Delay Spread Example

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With units

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Here is how the Delay Spread equation looks like with Values.

Here is how the Delay Spread equation looks like with Units.

Here is how the Delay Spread equation looks like.

1.0207 = \frac{1}{2 \cdot 3.14 \cdot 0.0002}

1.0207s = \frac{1}{2 \cdot 3.14 \cdot 0.0002kHz}

1.0207 = \frac{1}{2 \cdot 3.14 \cdot 0.0002}

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Delay Spread Solution

Follow our step by step solution on how to calculate Delay Spread?

FIRST Step Consider the formula

Δ = \frac{1}{2 \cdot 3.14 \cdot B fad}

Next Step Substitute values of Variables

∴

Δ = \frac{1}{2 \cdot 3.14 \cdot 0.0002kHz}

Next Step Convert Units

∴

Δ = \frac{1}{2 \cdot 3.14 \cdot 0.156Hz}

Next Step Prepare to Evaluate

∴

Δ = \frac{1}{2 \cdot 3.14 \cdot 0.156}

Next Step Evaluate

∴

Δ = 1.02074146660134s

LAST Step Rounding Answer

∴

Δ = 1.0207s

Delay Spread Formula Elements

Variables

Delay Spread

Delay Spread is a modulation technique used in CDMA systems to enable multiple users to share the same frequency band efficiently while maintaining their signal integrity and minimizing interference.

Symbol: Δ

Measurement: TimeUnit: s

Note: Value can be positive or negative.

Formulas to find Delay Spread

Coherence Bandwidth Fading

Coherence bandwidth Fading is refers to the variation in signal strength and quality across different frequency components of a transmitted signal.

Symbol: B_fad

Measurement: FrequencyUnit: kHz

Note: Value can be positive or negative.

Formulas to find Coherence Bandwidth Fading

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Go Time Slots

𝝉 = F.F - (R.F + 44 \cdot T s)

Go Channel Reuse Ratio

Q = \sqrt{3 \cdot K}

How to Evaluate Delay Spread?

Delay Spread evaluator uses Delay Spread = 1/(2*3.14*Coherence Bandwidth Fading) to evaluate the Delay Spread, The Delay Spread formula is defined as In the mobile radio environment, as a result of the multipath reflection phenomenon, the signal transmitted from a cell site and arriving at a mobile unit will be from different paths. Delay Spread is denoted by Δ symbol.

How to evaluate Delay Spread using this online evaluator? To use this online evaluator for Delay Spread, enter Coherence Bandwidth Fading (B_fad) and hit the calculate button.

FAQs on Delay Spread

What is the formula to find Delay Spread?

The formula of Delay Spread is expressed as Delay Spread = 1/(2*3.14*Coherence Bandwidth Fading). Here is an example- 1.020741 = 1/(2*3.14*0.156).

How to calculate Delay Spread?

With Coherence Bandwidth Fading (B_fad) we can find Delay Spread using the formula - Delay Spread = 1/(2*3.14*Coherence Bandwidth Fading).

Can the Delay Spread be negative?

Yes, the Delay Spread, measured in Time can be negative.

Which unit is used to measure Delay Spread?

Delay Spread is usually measured using the Second[s] for Time. Millisecond[s], Microsecond[s], Nanosecond[s] are the few other units in which Delay Spread can be measured.

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