Explain the terms CSMA

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Electrical Engineering

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Jan 9, 2024

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Explain the terms CSMA/CD and CSMA/CA, their differences, and how they prevent collisions. The CSMA/CD type is utilized to identify a shared channel collision. This is a mechanism for detecting collisions and it works with both wired and wireless networks. CSMA/CA is used to keep a shared channel free of collision. It is a mechanism created for avoiding collisions and it can connect to wireless networks. CSMA stands for Carrier Sense Multiple Access. It is a Media Access Protocol that uses carrier-sense multiple access (MAC). A node must confirm whether there is any traffic on the shared transmission channel. Although they are relatively similar phrases, there are a few significant distinctions when being examined attentively. There are two forms of CSMA Collision Avoidance and Collision Detection. Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA) is a network protocol that operates on the Medium Access Control (MAC) layer for carrier transfer. In contrast to CSMA/CD (Carrier Sense Multiple Access/Collision Detection), which deals with collisions after they happen, CSMA/CA (Carrier Sense Multiple Access/Collision Avoidance) prevents collisions from happening. There are several differences between CSMA CA and CSMA CD. Below I will list a table with a list of differences between. S. No CSMA/CD CSMA/CA 1 This CSMA type is utilized to identify a shared channel collision. It's a kind of CSMA used to keep a shared channel free of collision. 2 It's a mechanism for detecting collisions. It's a mechanism for avoiding collisions. 3 In an Ethernet 802.11 network, CSMA/CA is employed. In an Ethernet 802.3 network, cables have CSMA/CD. 4 It works with both wired and wireless networks. It can connect to wireless networks. 5 After a network's collision detection, this is effective. This is helpful before a network's collision detection. 6 When a data packet on a shared channel collides, the data frame is resent. The CSMA CA, on the other hand, does not recover after a collision and waits until the channel is crowded. 7 It reduces the amount of time it takes to recuperate. It lessens the chances of a collision. 8 It has a larger user base than the CSMA CA. It's not as well-known as the CSMA CD. https://www.codingninjas.com/studio/library/difference-between-csma-ca-and-csma-cd

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