State about CSMA/CA, Computer Engineering

Assignment Help:

State about CSMA/CA

It belongs to a class of protocols known as multiple access methods. CSMA/CA  stands  for:  Carrier  Sense  Multiple  Access  with  Collision Avoidance.  In  CSMA,  a  station  willing to  transmit  has  to  first  listen  to  channel for a predetermined amount of time so as to check for any activity on channel.  If  channel  is  sensed  "idle"  then  station  is  permitted  to transmit.  If  channel  is  sensed  as  "busy"  station  has  to  defer  its transmission.  This  is  essence  of  both  CSMA/CD  and  CSMA/CA.  In CSMA/CA  (Local  Talk),  once  channel  is  clear,  a  station  transmits a  signal telling all other stations not to transmit, and then sends its packet. In Ethernet 802.3, station continues to wait for a time, and checks to see if channelis still free. If it is free, station transmits, and waits for an acknowledgment signal that packet was received.

 

 


Related Discussions:- State about CSMA/CA

Information system for strategic advantage, Q. Describe short note on Infor...

Q. Describe short note on Information system for strategic advantage? Ans. Strategic role of information systems engage using information technology to develop products or serv

Uneven load distribution in parallel computers, Q. Uneven Load Distribution...

Q. Uneven Load Distribution in parallel computers? In parallel computers the problem is split in sub-problems in addition is assigned for computation to several processors howe

Draw a schematic for managing dynamic storage allocation, Draw a simple sch...

Draw a simple schematic for managing dynamic storage allocation. A simple schematic for managing dynamic storage allocation is as follows: Block size pointe

What is master clock signal in control unit, Q. What is Master Clock Signal...

Q. What is Master Clock Signal in Control Unit? The Master Clock Signal: This signal causes micro-operations to be executed in a square. In a single clock cycle either a single

Define macros, Define macros.   A macro is a pre-processor directive wh...

Define macros.   A macro is a pre-processor directive which is a program that processes the source code before it passes by the compiler. These are placed in the source program

Main features of TCP, The main features of TCP are: Reliability: TCP...

The main features of TCP are: Reliability: TCP makes sure that any data sent by a sender arrives at destination as it was sent. There can't be any data loss or change in the

Flowchart, How to calculate the flowchart

How to calculate the flowchart

What is public key cryptography, What is Public Key Cryptography Publi...

What is Public Key Cryptography Public-key cryptography is a form of modern cryptography which permits users to communicate safely without lastly agreeing on a shared secret

Why we need web browser, Q. why we need Web Browser? A Web browser is s...

Q. why we need Web Browser? A Web browser is software program which allows you to easily display Web pages and navigate the Web. The first graphical browser, Mosaic, was develo

Time complexity, Take a look at the code and try to understand the logic, p...

Take a look at the code and try to understand the logic, particularly, the way scrambled words are disambiguated, i.e.., whether they are matched successfully against a correct wor

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd