Search results
Results from the WOW.Com Content Network
Carrier-sense multiple access (CSMA) is a medium access control (MAC) protocol in which a node verifies the absence of other traffic before transmitting on a shared transmission medium, such as an electrical bus or a band of the electromagnetic spectrum.
Carrier-sense multiple access with collision avoidance (CSMA/CA) in computer networking, is a network multiple access method in which carrier sensing is used, but nodes attempt to avoid collisions by beginning transmission only after the channel is sensed to be "idle". [1] [2] When they do transmit, nodes transmit their packet data in its entirety.
In the Ethernet protocol, when a communication collision happens (when two users of the medium try to send at the same time), each user waits for a random period of time before re-accessing the link. However, a user will wait ("back off") for a random amount of time proportional to the number of times it has successively tried to access the link.
Common multiple access protocols that may be used in packet radio wireless networks include: Carrier-sense multiple access with collision avoidance (CSMA/CA), used in IEEE 802.11/WiFi, potentially using a distributed coordination function; ALOHA and slotted ALOHA, used in ALOHAnet; Reservation ALOHA (R-ALOHA) Mobile Slotted Aloha (MS-ALOHA ...
A contention-based channel access (multiple access) protocol is a protocol where data packet collisions may occur. Examples of such protocols are: The Aloha protocol; Carrier Sense Multiple Access (CSMA) Multiple Access with Collision Avoidance
In addition to the collision-avoidance methods mentioned, another important technique commonly used in computer networking and telecommunication to avoid resource contention is the implementation of protocols such as Carrier Sense Multiple Access with Collision Detection (CSMA/CD) and Carrier Sense Multiple Access with Collision Avoidance (CSMA ...
Multiple access with ... is a slotted media access control protocol used in wireless LAN data transmission ... as well as the additional function of Carrier sense.
Distributed coordination function (DCF) is the fundamental medium access control (MAC) technique of the IEEE 802.11-based WLAN standard (including Wi-Fi).DCF employs a carrier-sense multiple access with collision avoidance (CSMA/CA) with the binary exponential backoff algorithm.