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

Limitations of experts system, 1. It is hard even for a highly skilled ex...

1. It is hard even for a highly skilled experts to abstract good situational assessment when he is under time pressure. 2. Expert systems perform well with specific t

State a simple pull transaction, a. Explain the future of mobile commerce i...

a. Explain the future of mobile commerce in world? b. 'Push and Pull' are two ways of transferring information to and from a phone, through WAP. Now, with the help of diagram, s

What is indirect addressing mode explain, Q. What is Indirect Addressing Mo...

Q. What is Indirect Addressing Mode explain? Indirect Addressing Mode In the indirect addressing modes operands employ registers to point to locations in memory. So it is

Spirit duplicating of information, Spirit Duplicating Equipment Requir...

Spirit Duplicating Equipment Required Spirit Duplicator (also known as hectograph) Thermal copier (optional) Materials Masters Hectographic carbon COPY pa

What is the difference among scrollbar and scrollpane, A Scrollbar is a Co...

A Scrollbar is a Component, but not a Container while Scrollpane is a Container and handles its own events and do its own scrolling.

Illustrate about 8259, Illustrate about 8259 8259A adds 8 vectored pri...

Illustrate about 8259 8259A adds 8 vectored priority encoded interrupts to the microprocessor. We can expand it to 64 interrupt requests by using one master 8259A and 8 slave

What is a fifo, What is a FIFO? FIFO is otherwise known as 'named pipes...

What is a FIFO? FIFO is otherwise known as 'named pipes'. FIFO (first-in-first-out) is a particular file which is said to be data transient. Once data is read from named pipe,

Different edi components and services, Different EDI components and service...

Different EDI components and services  Three main components containing services in EDI System are as follows:  •  Application Service: Gives the means of integrating existi

Write the html code to webpage to insert scrollable lists, Write the HTML c...

Write the HTML code to accomplish the web page to insert scrollable lists that will always display four entries of the list. The HTML code to accomplish the web page is given b

What are the general security issues, What are the General Security Issues ...

What are the General Security Issues Many issues exist when linking a computer system to the Internet or indeed to an external link via a network set up. There are numerous way

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