Question

Consider a scenario with three clients: A is currently sending a data package to B while...

Consider a scenario with three clients: A is currently sending a data package to B while C also wants to send a data package to B. Suppose that C senses the channel status at the beginning of A’s transmission. Please draw the data transmission process of this scenario in CSMA/CA under 802.11 DCF.

Engineering   Computer-Science   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Multiple Access with Collision Avoidance (CSMA-CA) Procedure: Instead of sending packets control frames are exchanged.802.11 standard for WLAN defines a distributed coordination function (DCF) for sharing access to the medium based on the CSMA/CA protocol .

C listens to the channel before transmission to determine whether some one else is transmitting A sends an acknowledge packet (ACK) to B.

If an ACK is not received, the packet is considered lost and a retransmission is arranged

scenario:

A is currently sending a data package to B.

C also wants to send a data package to B.

C senses the channel status at the beginning of A’s transmission..

Just an example how does this work actually.

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
for the scenario below: 1) Apply the qualitative analysis by identifying at least 3 issues in...
for the scenario below: 1) Apply the qualitative analysis by identifying at least 3 issues in the above process. Analyse these issues by using a. Adding-value and Waste Analysis b. Issue register, If you find that there are more than three issues, you can focus on the three issues that have the highest impact. 2). Calculate the cycle time efficiency of the as-is process. You can assume a working week of 40 hours. In case there is missing information, you...
Case Scenario LSS is engaged in flood relief support nationally and has been asked to do...
Case Scenario LSS is engaged in flood relief support nationally and has been asked to do several international Camp Noah projects. Last year the French government asked for resources for children in Southeastern France who had been affected by floods; LSS responded within 15 weeks with a French Camp Noah curriculum that met many of the project objectives. The Board of Directors of LSS commended the effort; international expansion was added to this year’s strategic objectives for the LSS organization....
Sign In INNOVATION Deep Change: How Operational Innovation Can Transform Your Company by Michael Hammer From...
Sign In INNOVATION Deep Change: How Operational Innovation Can Transform Your Company by Michael Hammer From the April 2004 Issue Save Share 8.95 In 1991, Progressive Insurance, an automobile insurer based in Mayfield Village, Ohio, had approximately $1.3 billion in sales. By 2002, that figure had grown to $9.5 billion. What fashionable strategies did Progressive employ to achieve sevenfold growth in just over a decade? Was it positioned in a high-growth industry? Hardly. Auto insurance is a mature, 100-year-old industry...
Note:  100% plagiarism in the above paragraph please remove the plagiarism less than 15 % . CHALLENGES...
Note:  100% plagiarism in the above paragraph please remove the plagiarism less than 15 % . CHALLENGES / OPPORTUNITIES One of the major challenges is to change the people’s perspective of PepsiCo as an unhealthy soft drink producer. Due to the link of soft drinks to obesity and diabetes, the new CEO wants to reinvent Pepsi as a healthy food producer rather than a snacks producer. Although this is a good plan for the PepsiCo to consider, people who are used...
The Business Case for Agility “The battle is not always to the strongest, nor the race...
The Business Case for Agility “The battle is not always to the strongest, nor the race to the swiftest, but that’s the way to bet ’em!”  —C. Morgan Cofer In This Chapter This chapter discusses the business case for Agility, presenting six benefits for teams and the enterprise. It also describes a financial model that shows why incremental development works. Takeaways Agility is not just about the team. There are product-management, project-management, and technical issues beyond the team’s control. Lean-Agile provides...
What tools could AA leaders have used to increase their awareness of internal and external issues?...
What tools could AA leaders have used to increase their awareness of internal and external issues? ???ALASKA AIRLINES: NAVIGATING CHANGE In the autumn of 2007, Alaska Airlines executives adjourned at the end of a long and stressful day in the midst of a multi-day strategic planning session. Most headed outside to relax, unwind and enjoy a bonfire on the shore of Semiahmoo Spit, outside the meeting venue in Blaine, a seaport town in northwest Washington state. Meanwhile, several members of...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT