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

What is dialog box, This is a small window that is demanding your attention...

This is a small window that is demanding your attention. You must respond before you can carry on using the program that shown the dialog box. A dialog box does not have a minimize

Expalin the concept of program, The Concept of Program From a programme...

The Concept of Program From a programmer's viewpoint, generally a program is a well-defined set of instructions written in a specific programming language, with predefined sets

Efficiency of vector processing over scalar processing, Efficiency of Vecto...

Efficiency of Vector Processing over Scalar Processing: We know that, a sequential computer processes scalar operands one at a time. Thus, if we have to process a vector of len

Define the meaning of document and finger print, a. Define the meaning of "...

a. Define the meaning of "Document & Finger print" and "Message & Message Digest". What's the difference among the 2 pairs? b. Describe Davies Meyer scheme with diagram. c. W

Bangla numeral recognition using multilayer feed forward, Assignment 4: Han...

Assignment 4: Handwritten Bangla Numeral Recognition using Multilayer Feed Forward Neural Network. In this assignment, you will design a multi layer feed forward neural network

What types of data entry services do you perform, What types of data entry ...

What types of data entry services do you perform? Our business is to understand what data you require entered and in what particular format. After an initial analysis is perfor

What is branch instruction, What is branch instruction? As a result of ...

What is branch instruction? As a result of branch instruction is a type of instruction which loads a latest values into the program counter.

Explain r-2r ladder d/a converter, Explain R-2R ladder D/A converter. A...

Explain R-2R ladder D/A converter. Ans. R-2R ladder D/A converter: An R-2R ladder D/A converter is shown in Fig.(a). It uses resistors of only two values R and 2R. The inp

Eliminating hazards - computer architecture, Eliminating hazards of pipeli...

Eliminating hazards of pipeline -  computer architecture: We can delegate the work of eliminating data dependencies to the compiler, which can fill up in suitable number of NO

COA, During instruction execution, there are other parts of the CPU that ca...

During instruction execution, there are other parts of the CPU that can determine when a physical register might be freed. Briefly describe where else we can put freeing logic and

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