MAC header

MAC header

(Media Access Control header) The data fields added at the beginning of a network packet in order to turn it into a frame to be transmitted. A MAC header typically refers to an Ethernet header, which is the predominant network access method in use today. See MAC layer and protocol stack.
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The header structure of the beacon frame includes type, synchronization preamble sequence (SHR-PS), synchronization start of frame Delimiter (SHR-SD), MAC header beacon sequence number (MHR-BSN), destination address, source address, CAP channels and frame check sequence (FCS) as shown in Fig.
to the (output port) packet analyzer by carrying this information in the packet's MAC header.
This frame is constructed from a MAC header (MHR) and a MAC footer (MFR).
packet]--time required for data and overhead transmission consisting of preamble, 30-byte MAC header transmission time--[t.
With the FCS, the administrator can configure the system to capture packet and meta data, such as MAC header, protocol header, packet body, and the date, time and disposition information.
Parameters for numerical results Parameter Value Parameter Value Packet1 payload 8184 bits FCTS[10] 528 bits Packet2 payload 8184 bits ACK 240 bits PHY header 128 bits flag 1 bit MAC header 272 bits Channel Bit Rate 1 Mbit/s RTS1 290 bits Slot Time ([sigma]) 50 [micro]s RTS2/RTS3/DCTS 306 bits SIFS 28 [micro]s RTS 288 bits DIFS 128 [micro]s CTS 240 bits CTS timeout 300 [micro]s
MAC Parameters Used in Numerical Results Parameter Value Payload size 8000bits PHY header 192bits MAC header 272bits ACK PHY header+112bits Time slot 20 [micro]s SIFS 10 [micro]s CIFS(CTS Interframe space) 5us Basic Rate 1Mbps Data Rate 2Mbps The number of antenna M 4 RTS (including 4 receiver) PHY header +304bits CTS(without CSI) PHY header+112bits CTS(with CSI) PHY header+1984bits C[W.
When a WDS link is set up between two access points, all four available address fields in the MAC header are used:
CQM system parameters in numerical analysis Packet length 8192 bits MAC header 272 bits Physical header(PHY) 128 bits ACK 112 bits + PHY header RTS 160bits + PHY header CTS 112 bits + PHY header SIFS 28 us DIFS 128 us m 6 m' 5 Slot duration 50 us Propagation delay 1 us Channel bit rate 1 Mbps Channel number 3 Table 3.
CPmin] value is slightly different form one calculated for original IEEE 802 11b, due to larger maximum frame body (12 bytes have been added by 11e amendment making totally 2324 bytes) and larger MAC header due to QoS related information (2 bytes have been added by 11e amendment making MAC header totally 36 Bytes length)
4 [micro]s MAC Header 56 bits Parameter Lengths (bits) MAC Footer 16 bits PHY Header 31 bits Payload (average) 2040/2 bits Data Rates PLCP Header 91.
data]) is the sum of data packet size of DSR, DSR header, the mean number of hops multiplied by four bytes (DSR packets include the route in their headers), and MAC header.