**6.3B-4. Multiple Access Protocols (4).**Consider the figure below, which shows the arrival of 6 messages for transmission at different multiple access wireless nodes at times \( t=0.1, 0.8, 1.35, 2.6, 3.9, 4.2 \). Each transmission requires exactly one time unit.![Diagram of message arrivals at multiple access nodes](diagrams.png)- The diagram shows a timeline starting from \( t=0.0 \) to \( t=5.0 \).- Each node is represented with a red circle containing a number indicating the order of message arrivals. There are six total nodes/messages plotted across the timeline.- Nodes/messages are marked at specific times: 1. Node 1 at \( t=0.1 \) 2. Node 2 at \( t=0.8 \) 3. Node 3 at \( t=1.35 \) 4. Node 4 at \( t=2.6 \) 5. Node 5 at \( t=3.9 \) 6. Node 6 at \( t=4.2 \)Again consider the **CSMA protocol (without collision detection)**, and indicate those packets where the channel is sensed busy and therefore, under CSMA, *that message transmission is not attempted*. [You should assume that it takes .2 time units for a signal to propagate from one node to each of the other nodes. You can assume that if a packet experiences a collision or senses the channel busy, that node will not attempt a retransmission of that packet until sometime after \( t=5 \). Hint: consider propagation times carefully here].- 1 ☐- 2 ☐- 3 ☐- 4 ☐- 5 ☐- 6 ☐This setup requires the analysis of CSMA timing and careful consideration of when each node senses the channel as busy due to the propagation delay.

In Ethernet networks, the CSMA/CD network protocol is used to control access to a common…

6.3B-4. Multiple Access protocols (4). Consider the figure below, which shows the arrival of 6 messages for transmission at different multiple access wireless nodes at times t=0.1, 0.8, 1.35, 2.6, 3.9, 4.2. Each transmission requires exactly one time unit. t=0.0 1 U U 1 2 3 4 Again consider the CSMA protocol (without collision detection), indicate those packets where the channel is sensed busy and therefore, under CSMA, that message transmission is not attempted. [Again, you should assume that it takes .2 time units for a signal to propagate from one node to each of the other nodes. You can assume that if a packet experiences a collision or senses the channel busy and that that node will not attempt a retransmission of that packet until sometime after t=5. Hint: consider propagation times carefully here]. 5 23 6 t=1.0 t=2.0 t-3.0 5 6 t=4.0 t=5.0

6.3B-4. Multiple Access protocols (4). Consider the figure below, which shows the arrival of 6 messages for transmission at different multiple access wireless nodes at times t=0.1, 0.8, 1.35, 2.6, 3.9, 4.2. Each transmission requires exactly one time unit. t=0.0 1 U U 1 2 3 4 Again consider the CSMA protocol (without collision detection), indicate those packets where the channel is sensed busy and therefore, under CSMA, that message transmission is not attempted. [Again, you should assume that it takes .2 time units for a signal to propagate from one node to each of the other nodes. You can assume that if a packet experiences a collision or senses the channel busy and that that node will not attempt a retransmission of that packet until sometime after t=5. Hint: consider propagation times carefully here]. 5 23 6 t=1.0 t=2.0 t-3.0 5 6 t=4.0 t=5.0

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

See similar textbooks

Related questions

Q: Consider the datagrams of each layer in the TCP/IP model, e.g., Frame at the Link Layer, Packet at…

A: Note: As you have asked a multipart question, as per our policy, we will solve the first three parts…

Q: . Suppose A is connected to B via an intermediate router R, as in the previous problem. The A-R link…

Q: liseconds. Assume an ACK is small enough that you can ignore its transmission delay. You may also…

A: For a pipelined reliable data transfer protocol with a window size of 6, the sender can send up to 6…

Q: Consider a network with 4 links between two hosts where the maximum allowable packet size is 1000…

A: Answers:- 1st method:- To calculate the total time it takes to send 6000 bits from one host to…

Q: Consider this multihpop network running the 802.11 MAC protocol in ad-hoc mode (RTS-CTS-DATA-ACK)…

A: ANSWER:-

Q: Consider the following 4-message protocol between A and B, where (N+1) represents the increment of…

A: A 4-message protocol is a communication pattern that involves four distinct messages exchanged…

Q: The RDT 3.0 protocol (b). Consider the rdt3.0 sender and receiver shown below, with FSM…

A: Transition t1: This transition happens after the receiver has processed the first packet and sends…

Q: 6.3-3. Multiple Access protocols (c). Consider the figure below, which shows the arrival of 6…

A: Slotted ALOHA works in time slots, where the time for a slot is the time to transmit a single…

Q: Consider an employee using their computer to send and retrieve email at their workplace. Only…

A: A protocol used on a significant majority of user e-mail accounts is the IMAP(Internet Message…

Q: Assume you are using Selective Repeat with a window size of 5 slots, sequence numbers ranging from…

A: Selective Repeat protocols need the recipient to confirm packet receipts, and the sender to monitor…

Q: Consider the following 4-message protocol between A and B, where (N+1) represents the increment of…

A: Mutations to the messages that appears that several of these articles discuss mutations to messages…

Q: e sender and receiver can be reordered, then rdt3.0 will not w he diagram, clearly explain why this…

Q: Consider a packet of length L that begins at end system A and travels over three links to a…

A: The above question is solved in step 2 :-

Concept explainers

Network transmission cabling

A network is a collection of devices connected by communication links. A device can be a computer or any instrument capable of sending and receiving data or information formed by other nodes toward the network. A channel that connects people or things is known as a network. It sends the data from one place to another. It is the basic concept of a computer, network, and data communications.

Question

**6.3B-4. Multiple Access Protocols (4).**

Consider the figure below, which shows the arrival of 6 messages for transmission at different multiple access wireless nodes at times \( t=0.1, 0.8, 1.35, 2.6, 3.9, 4.2 \). Each transmission requires exactly one time unit.

![Diagram of message arrivals at multiple access nodes](diagrams.png)

- The diagram shows a timeline starting from \( t=0.0 \) to \( t=5.0 \).
- Each node is represented with a red circle containing a number indicating the order of message arrivals. There are six total nodes/messages plotted across the timeline.
- Nodes/messages are marked at specific times:
1. Node 1 at \( t=0.1 \)
2. Node 2 at \( t=0.8 \)
3. Node 3 at \( t=1.35 \)
4. Node 4 at \( t=2.6 \)
5. Node 5 at \( t=3.9 \)
6. Node 6 at \( t=4.2 \)

Again consider the **CSMA protocol (without collision detection)**, and indicate those packets where the channel is sensed busy and therefore, under CSMA, *that message transmission is not attempted*.

[You should assume that it takes .2 time units for a signal to propagate from one node to each of the other nodes. You can assume that if a packet experiences a collision or senses the channel busy, that node will not attempt a retransmission of that packet until sometime after \( t=5 \). Hint: consider propagation times carefully here].

- 1 ☐
- 2 ☐
- 3 ☐
- 4 ☐
- 5 ☐
- 6 ☐

This setup requires the analysis of CSMA timing and careful consideration of when each node senses the channel as busy due to the propagation delay.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1: Define CSMA/CD

VIEW

Step 2: Transmission Analysis

VIEW

Solution

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 3 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.

Similar questions

please look at the two pics and answer please
Suppose A is connected to B via an intermediate router R, as in the previous problem. The A-R link is instantaneous, but the R–B link transmits only one packet each second, one at a time (so two packets take 2 seconds). Assume A sends to B using the sliding window protocol with SWS = 4. For Time = 0, 1, 2, 3, 4, state what packets arrive at and are sent from A and B. How large does the queue at R grow?
A protocol for interleaved deliveries from two senders. Consider the figure below, which shows three nodes, A, B, and C. A and C are connected by a bi-directional channel; B and C are connected by a separate independent bi-directional channel. A and B can not communicate with each other. The goal of the protocol you will design is to transfer data from A and from B in a coordinated manner to C. The protocol between sender A and receiver C (and sender B and C) operates as follows. Senders A and B each receive data from their upper layer, via a call to rdt_send(data), which returns the data to be sent, exactly the same as the rdt protocols we studied in class and in the text. Senders A and B are to reliably send their sequence of data obtained via subsequent calls from rdt_send(data) to C. Node C should deliver to its application layer (via a call to deliver_data())a data item from A (as soon as it has correctly received that data item), followed by a data item from B (as soon as it has…
Suppose A is connected to B via an intermediate router R, as in the previous problem. The A-R link is instantaneous, but the R–B link transmits only one packet each second, one at a time (so two packets take 2 seconds). Assume A sends to B using the sliding window protocol with SWS = 4. For Time = 0, 1, 2, 3, 4, state what packets arrive at and are sent from A and B. How large does the queue at R grow?