access mechanism

access mechanism

[′ak‚ses ′mek·ə‚niz·əm]
(computer science)
The mechanism of positioning reading or writing heads onto the required tracks of a magnetic disk.
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The new smart wallets hold at least 12 cards but users can have instant access up to six cards with the click of a button using the card access mechanism. For security, Ekster wallets block out all signals with its aluminum cardholder, keeping users fully protected against any data theft from RFID or NFC hijackers.
It is touted to deliver up to 985 MB/s of data transfer rate and the NVMe upper layer protocol enables advanced memory access mechanism as well.
However, the proposed scheme only considers channel estimation errors in a fixed communication link, which ignores the multi-link channel estimation errors caused by open access mechanism in dense HCNs.
This is the first captive solar power plant in Haryana to deliver power under the open access mechanism.
DCF is a CSMA/CA access mechanism. Like Ethernet, the station first checks that the channel is clear before transmitting.
Groups have called on the European commission to investigate the company's tax affairs and Shell hit back saying, "No tax is levied on dividends from B shares, provided that they are paid via the so-called dividend access mechanism.This solved the problem for the shareholders in the British parent company and made it possible for Shell to unify in one headquarters location, The Hague.
In 802.11ah standard, the RAW mechanism that can allocate large numbers of stations with alternate channel time access can become an issue The channel access mechanism can make a station change into sleep mode and a packet should wait its turn when it's not time to access the channel, whereas real time services such as VoIP need quick access with low delay in its packet delivery.
And then we develop Priority Access Mechanism to process priority access group prior to normal access group.
In our previous work [11], the channel time bounding mechanism of the proposed MAC is implemented and evaluated against the IEEE 802.15.4 MAC superframe structure in a complete network form using the same contention-based channel access mechanism used in the standard and illustrated in the next section.
For the LAA standard, the 3GPP adopted a listen-before-talk channel access mechanism to share the spectrum fairly.
In addition, the direct memory access mechanism allows overlapping data transfer with computation, thereby, reducing overhead in data transfer among memory hierarchy.