FormulaDen.com

Physics Chemistry Math Chemical Engineering Civil Electrical Electronics Electronics and Instrumentation Materials Science Mechanical Production Engineering Financial Health

Selective Retransmission Formula

Fx Copy

LaTeX Copy

Selective Retransmission also called Selective Repeat ARQ (Automatic Repeat Request), is a data link layer protocol that uses the sliding window method for reliable delivery of data frames. Check FAQs

R s = \frac{N wd \cdot L}{H \cdot E n + B wd \cdot E 1 \cdot N wd}

R_s - Selective Retransmission?N_wd - Number of Word Message Consist?L - Information Bits?H - Header Bits?E_n - Expected Number of Transmission?B_wd - Number of Bits per Word?E₁ - Expected One Transmission?

Selective Retransmission Example

With values

With units

Only example

Here is how the Selective Retransmission equation looks like with Values.

Here is how the Selective Retransmission equation looks like with Units.

Here is how the Selective Retransmission equation looks like.

0.0723 = \frac{19 \cdot 3}{9 \cdot 4 + 12 \cdot 3.3 \cdot 19}

0.0723 = \frac{19 \cdot 3}{9 \cdot 4 + 12 \cdot 3.3 \cdot 19}

0.0723 = \frac{19 \cdot 3}{9 \cdot 4 + 12 \cdot 3.3 \cdot 19}

Tip: Use pencil ( Pencil

) icon above to edit Input Values and Units.

Calculate

Recalculate

Solution

Copy

Reset

You are here -

Home » Category

Engineering » Category

Electronics » Category

Wireless Communication » fx Selective Retransmission

Selective Retransmission Solution

Follow our step by step solution on how to calculate Selective Retransmission?

FIRST Step Consider the formula

R s = \frac{N wd \cdot L}{H \cdot E n + B wd \cdot E 1 \cdot N wd}

Next Step Substitute values of Variables

∴

R s = \frac{19 \cdot 3}{9 \cdot 4 + 12 \cdot 3.3 \cdot 19}

Next Step Prepare to Evaluate

∴

R s = \frac{19 \cdot 3}{9 \cdot 4 + 12 \cdot 3.3 \cdot 19}

Next Step Evaluate

∴

R s = 0.0722983257229833

LAST Step Rounding Answer

∴

R s = 0.0723

Selective Retransmission Formula Elements

Variables

Selective Retransmission

Selective Retransmission also called Selective Repeat ARQ (Automatic Repeat Request), is a data link layer protocol that uses the sliding window method for reliable delivery of data frames.

Symbol: R_s

Measurement: NAUnit: Unitless

Note: Value can be positive or negative.

Formulas to find Selective Retransmission

Number of Word Message Consist

Number of Word Message Consist in a message can vary depending on the specific protocol and encoding scheme being used.

Symbol: N_wd

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Number of Word Message Consist

Information Bits

Information bits refer to the fundamental units of data that are transmitted and received between devices or systems.

Symbol: L

Measurement: NAUnit: Unitless

Note: Value can be positive or negative.

Formulas to find Information Bits

Header Bits

Header bits refer to the bits of information included at the beginning of a data transmission packet or frame.

Symbol: H

Measurement: NAUnit: Unitless

Note: Value can be positive or negative.

Formulas to find Header Bits

Expected Number of Transmission

Expected Number of Transmission refers to the average number of times a packet or data transmission needs to be sent from a transmitter to a receiver in order to achieve successful delivery.

Symbol: E_n

Measurement: NAUnit: Unitless

Note: Value can be positive or negative.

Formulas to find Expected Number of Transmission

Number of Bits per Word

Number of Bits per Word refers to the number of binary bits contained in a single word of data transmitted over the wireless channel.

Symbol: B_wd

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Number of Bits per Word

Expected One Transmission

Expected One Transmission typically refers to the desired outcome or expectation of successfully transmitting data or information in a wireless network using a single transmission attempt.

Symbol: E₁

Measurement: NAUnit: Unitless

Note: Value can be positive or negative.

Formulas to find Expected One Transmission

Other formulas in Mobile Radio Propogation category

Go Level Crossing Rate

N R = (\sqrt{2 \cdot π}) \cdot F m \cdot ρ \cdot e^{- (ρ^{2})}

Go Multipath Fading

R ot = \frac{R t}{M t}

How to Evaluate Selective Retransmission?

Selective Retransmission evaluator uses Selective Retransmission = (Number of Word Message Consist*Information Bits)/(Header Bits*Expected Number of Transmission+Number of Bits per Word*Expected One Transmission*Number of Word Message Consist) to evaluate the Selective Retransmission, The Selective Retransmission formula is defined as Selective repeat protocol, also called Selective Repeat ARQ (Automatic Repeat Request), is a data link layer protocol that uses the sliding window method for reliable delivery of data frames. Here, only the erroneous or lost frames are retransmitted, while the good frames are received and buffered. Selective Retransmission is denoted by R_s symbol.

How to evaluate Selective Retransmission using this online evaluator? To use this online evaluator for Selective Retransmission, enter Number of Word Message Consist (N_wd), Information Bits (L), Header Bits (H), Expected Number of Transmission (E_n), Number of Bits per Word (B_wd) & Expected One Transmission (E₁) and hit the calculate button.

FAQs on Selective Retransmission

What is the formula to find Selective Retransmission?

The formula of Selective Retransmission is expressed as Selective Retransmission = (Number of Word Message Consist*Information Bits)/(Header Bits*Expected Number of Transmission+Number of Bits per Word*Expected One Transmission*Number of Word Message Consist). Here is an example- 0.072298 = (19*3)/(9*4+12*3.3*19).

How to calculate Selective Retransmission?

With Number of Word Message Consist (N_wd), Information Bits (L), Header Bits (H), Expected Number of Transmission (E_n), Number of Bits per Word (B_wd) & Expected One Transmission (E₁) we can find Selective Retransmission using the formula - Selective Retransmission = (Number of Word Message Consist*Information Bits)/(Header Bits*Expected Number of Transmission+Number of Bits per Word*Expected One Transmission*Number of Word Message Consist).

Let Others Know

✖

Facebook

Twitter

Copied!

: Value
: Unit

Selective Retransmission Formula

Selective Retransmission Example

Selective Retransmission Solution

Selective Retransmission Formula Elements

Other formulas in Mobile Radio Propogation category

How to Evaluate Selective Retransmission?

FAQs on Selective Retransmission

Variable Name