What Method Is Used To Manage Contention-Based Access On A Wireless Network?
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What method is used to manage contention-based access on a wireless network?
Answer: Carrier sense multiple access with a collision is used to manage contention-based access on a wireless network. While the CSMA/CD is used along with ethernet wired to manage the media contention. While the token ring ALOHA is not used for media contention.
What do you know about CSMA/CA?
CSMA/CA (carrier sense multiple access with collision detection) is one of the protocols of the network and act as carrier transmission which works in the layer of medium access control. On the other hand, CSMA/CD work with the collision after the coherence occurs, and CSMA/CA keeps the collision to happen.
The main goal of the CSMA/CA is to make the station able to receive the signal during the collision detection from multiple stations.in the cable system when the coherence happens the energy is suddenly rising almost double the current energy and the station be able to find the collision in the signals. in the wireless connection, the rise in energy is almost 10 to 15 % of the current and the station detects the collision. this is why CSMA/CA is more suitable with a wireless connection than with a wired network.
The strategies which are used in the CSMA/CA are described below:
IFS:
IFS stands for interframe space that describes when the station finds the channel not available then it can wait for a period which is known as IFS it also described the channel’s priority or frames.
Priority is inversely proportional to the priority lower the IFS higher the priority and vice versa.
Contention Window:
It is defined as the time-division between the slots. a station that wants to send frames and ready chooses general slots as its waiting time.
Acknowledgment:
A good acknowledgment and a timeout ensure successful frame transmission.
CSMA/CA process:
The procedure for the CSMA/CA is described in the following:
Pros and cons of CSMA/CA:
Pros:
Cons:
The simplest method to manage contention-based access on a wireless network is by using Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA). CSMA/CA is a widely used MAC layer protocol that allows multiple devices to share a single channel. The CSMA/CA technique works by sensing the medium for activity before transmitting, and then deferring transmission if activity is detected. Additionally, a random backoff algorithm is used to limit the number of collisions in the network.