How long will it take to transmit a 1-GB file from one VSAT...

How long will it take to transmit a 1-GB file from one VSAT to another using a hub as shown in Fig. 2-50? Assume that the uplink is $1 \mathrm{Mbps}$, the downlink is $7 \mathrm{Mbps}$, and circuit switching is used with $1.2$ sec circuit setup time.

Labs

Want to see this concept in action?

NEW

Explore this concept interactively to see how it behaves as you change inputs.

View Labs

Key Concepts

Transmission Delay

Transmission delay is the time it takes to push all the data from a source onto a communication channel. It is determined by dividing the total number of bits to be transmitted by the channel’s data rate, and it is a key factor in estimating how long a data transfer will take.

Circuit Switching

Circuit switching is a method where a dedicated communication path is established between the sender and receiver prior to transmitting data. This involves an initial setup phase, which introduces additional delay (called circuit setup time) that must be accounted for in the overall transfer time.

Data Rate and Bottleneck Analysis

Data rate refers to the speed at which data can be transmitted over a channel, typically measured in bits per second (bps). When a communication system involves multiple links with different speeds, the link with the lowest data rate becomes the bottleneck, significantly influencing the overall transmission delay.

File Size and Bit Conversion

File size conversion is the process of converting storage units (such as gigabytes) into bits, since data rates are typically specified in bits per second. Accurate conversion is necessary to ensure that calculations of transmission delay are correct and comparable.

Transcript

Please give Ace some feedback