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802.11 Mac Sublayer Protocol Pdf Download

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MessagePosté le: Sam 3 Sep - 12:46 (2016)    Sujet du message: 802.11 Mac Sublayer Protocol Pdf Download Répondre en citant

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The MAC layer emulates a full-duplex logical communication channel in a multi-point network. This mechanism is only utilized within a network collision domain, for example an Ethernet bus network or a hub-based star topology network. This article is based on material taken from the Free On-line Dictionary of Computing prior to 1 November 2008 and incorporated under the "relicensing" terms of the GFDL, version 1.3 or later. Frame delimiting and recognition Addressing of destination stations (both as individual stations and as groups of stations) Conveyance of source-station addressing information Transparent data transfer of LLC PDUs, or of equivalent information in the Ethernet sublayer Protection against errors, generally by means of generating and checking frame check sequences Control of access to the physical transmission medium . receive/transmit normal frames half-duplex retransmission and backoff functions append/check FCS (frame check sequence) interframe gap enforcement discard malformed frames prepend(tx)/remove(rx) preamble, SFD (start frame delimiter), and padding half-duplex compatibility: append(tx)/remove(rx) MAC address . This makes it possible for several stations connected to the same physical medium to share it.

An Ethernet network may be divided into several collision domains, interconnected by bridges and switches. The MAC protocol is specified by 3GPP in TS 25.321[4] for UMTS and TS 36.321[5] for LTE. Cambridge University Press. In UMTS and LTE, those protocols are the Packet Data Convergence Protocol (PDCP), the Radio Link Control (RLC) protocol, and the MAC protocol. The channel access control mechanisms provided by the MAC layer are also known as a multiple access protocol. Presentation layer MIME XDR 5. Functions performed in the MAC sublayer[edit]. CSMA/CA (used in IEEE 802.11/WiFi WLANs) Slotted ALOHA Dynamic TDMA Reservation ALOHA (R-ALOHA) Mobile Slotted Aloha (MS-ALOHA) CDMA OFDMA OFDM . In the IEEE 802 reference model of computer networking, the medium access control or media access control (MAC) layer is the lower sublayer of the data link layer (layer 2) of the seven-layer OSI model. ..

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MessagePosté le: Lun 30 Juil - 04:10 (2018)    Sujet du message: 802.11 Mac Sublayer Protocol Pdf Download Répondre en citant

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MessagePosté le: Aujourd’hui à 07:49 (2018)    Sujet du message: 802.11 Mac Sublayer Protocol Pdf Download

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