Packet transmission time in 802.11: Difference between revisions

From
Jump to navigation Jump to search
(new page)
 
(First version of 802.11b table)
Line 1: Line 1:
== Frame exchange duration for a unicast data frame and the acknowledgement frame ==
== Frame exchange duration for a unicast data frame and the acknowledgement frame ==

{| {{prettytable}} <hiddentext>generated with [[:de:Wikipedia:Textverarbeitung/EXCEL-Tabellenumwandlung]] V14<\hiddentext>
|- valign="bottom"
| width="15,75" Height="12,75" |
| width="177,75" | Payload in bytes:
|style="background-color:#99CC00" width="45,75" align="center" | 1500
| width="45,75" |
| width="45,75" align="center" |
| width="45,75" align="center" |
| width="45,75" align="center" |
| width="45,75" align="center" |
| width="45,75" |
| width="45,75" |
| width="45,75" |
| width="45,75" |
| width="45,75" |
| width="45,75" |
| width="45,75" |
| width="45,75" |
| width="45,75" |
| width="45,75" |

|- valign="bottom"
| Height="12,75" |
| Data transmission bitrate (802.11b/g):
|
|
|style="background-color:#CCFFCC" align="center" | 1 Mbps
| align="center" |
|
|style="font-weight:bold" align="center" |
|style="background-color:#CCFFCC" align="center" | 2 Mbps
| align="center" |
|
|style="font-weight:bold" align="center" |
|style="background-color:#CCFFCC" align="center" | 5.5 Mbps
| align="center" |
|
|style="font-weight:bold" align="center" |
|style="background-color:#CCFFCC" align="center" | 11 Mbps
| align="center" |

|- valign="bottom"
| Height="25,5" |
|
|
| align="center" | Bitrate (Mbit/s)
| align="center" | Length (bits)
| align="center" | Time (μs)
|
| align="center" | Bitrate (Mbit/s)
| align="center" | Length (bits)
| align="center" | Time (μs)
|
| align="center" | Bitrate (Mbit/s)
| align="center" | Length (bits)
| align="center" | Time (μs)
|
| align="center" | Bitrate (Mbit/s)
| align="center" | Length (bits)
| align="center" | Time (μs)

|- valign="bottom"
| Height="12,75" |
| DIFS
|
| align="center" |
| align="center" |
| align="right" | 50
|
| align="center" |
| align="center" |
| align="right" | 50
|
|
| align="center" |
| align="right" | 50
|
| align="center" |
| align="center" |
| align="right" | 50

|- valign="bottom"
|style="background-color:#33CCCC;font-weight:bold" Height="12,75" | D
| PHY header: PLCP preamble
|
| align="center" | 1
| align="center" | 144
| align="right" | 144
|
| align="center" | 1
| align="center" | 72
| align="right" | 72
|
| align="center" | 1
| align="center" | 72
| align="right" | 72
|
| align="center" | 1
| align="center" | 72
| align="right" | 72

|- valign="bottom"
|style="background-color:#33CCCC;font-weight:bold" Height="12,75" | A
| PHY header: PLCP header
|
| align="center" | 1
| align="center" | 48
| align="right" | 48
|
| align="center" | 2
| align="center" | 48
| align="right" | 24
|
| align="center" | 2
| align="center" | 48
| align="right" | 24
|
| align="center" | 2
| align="center" | 48
| align="right" | 24

|- valign="bottom"
|style="background-color:#33CCCC;font-weight:bold" Height="12,75" | T
| MAC headers (ad-hoc mode: 28 Bytes)
|
| align="center" | 1
| align="center" | 224
| align="right" | 224
|
| align="center" | 2
| align="center" | 224
| align="right" | 112
|
| align="center" | 6
| align="center" | 224
| align="right" | 41
|
| align="center" | 11
| align="center" | 224
| align="right" | zus.

|- valign="bottom"
|style="background-color:#33CCCC;font-weight:bold" Height="12,75" | A
| MAC body
|
| align="center" | 1
| align="center" | 12000
| align="right" | 12000
|
| align="center" | 2
| align="center" | 12000
| align="right" | 6000
|
| align="center" | 6
| align="center" | 12000
| align="right" | 2182
|
| align="center" | 11
| align="center" | 12000
| align="right" | 1112

|- valign="bottom"
| Height="12,75" |
|style="font-weight:bold" align="right" | tx time data:
|
| align="center" |
| align="center" |
|style="font-weight:bold" align="right" | 12466
|
| align="center" |
| align="center" |
|style="font-weight:bold" align="right" | 6258
|
| align="center" |
| align="center" |
|style="font-weight:bold" align="right" | 2369
|
| align="center" |
| align="center" |
|style="font-weight:bold" align="right" | 1258

|- valign="bottom"
| Height="12,75" |
| SIFS
|
| align="center" |
| align="center" |
| align="right" | 10
|
| align="center" |
| align="center" |
| align="right" | 10
|
| align="center" |
| align="center" |
| align="right" | 10
|
| align="center" |
| align="center" |
| align="right" | 10

|- valign="bottom"
|style="background-color:#33CCCC;font-weight:bold" Height="12,75" | A
| PHY header: PLCP preamble
|
| align="center" | 1
| align="center" | 144
| align="right" | 144
|
| align="center" | 1
| align="center" | 72
| align="right" | 72
|
| align="center" | 1
| align="center" | 72
| align="right" | 72
|
| align="center" | 1
| align="center" | 72
| align="right" | 72

|- valign="bottom"
|style="background-color:#33CCCC;font-weight:bold" Height="12,75" | C
| PHY header: PLCP header
|
| align="center" | 1
| align="center" | 48
| align="right" | 48
|
| align="center" | 2
| align="center" | 48
| align="right" | 24
|
| align="center" | 2
| align="center" | 48
| align="right" | 24
|
| align="center" | 2
| align="center" | 48
| align="right" | 24

|- valign="bottom"
|style="background-color:#33CCCC;font-weight:bold" Height="12,75" | K
| MAC headers
|
| align="center" | 1
| align="center" | 112
| align="right" | 112
|
| align="center" | 2
| align="center" | 112
| align="right" | 56
|
| align="center" | 6
| align="center" | 112
| align="right" | 21
|
| align="center" | 11
| align="center" | 112
| align="right" | 11

|- valign="bottom"
|style="font-weight:bold" Height="12,75" |
|style="font-weight:bold" align="right" | tx time ack:
|
|style="font-weight:bold" align="right" |
|style="font-weight:bold" align="center" |
|style="font-weight:bold" align="right" | 314
|
|style="font-weight:bold" |
|style="font-weight:bold" align="center" |
|style="font-weight:bold" align="right" | 162
|
|style="font-weight:bold" align="center" |
|style="font-weight:bold" align="center" |
|style="font-weight:bold" align="right" | 127
|
|style="font-weight:bold" align="center" |
|style="font-weight:bold" align="center" |
|style="font-weight:bold" align="right" | 117

|- valign="bottom"
|style="font-weight:bold" Height="12,75" |
|style="font-weight:bold" align="right" | tx time data + ack:
|
|style="font-weight:bold" align="right" |
|style="font-weight:bold" align="center" |
|style="background-color:#99CC00;font-weight:bold" align="right" | 12780
|
|style="font-weight:bold" |
|style="font-weight:bold" align="center" |
|style="background-color:#99CC00;font-weight:bold" align="right" | 6420
|
|style="font-weight:bold" align="center" |
|style="font-weight:bold" align="center" |
|style="background-color:#99CC00;font-weight:bold" align="right" | 2496
|
|style="font-weight:bold" |
|style="font-weight:bold" align="center" |
|style="background-color:#99CC00;font-weight:bold" align="right" | 1375

|}

Revision as of 19:43, 22 February 2007

Frame exchange duration for a unicast data frame and the acknowledgement frame

Payload in bytes: 1500
Data transmission bitrate (802.11b/g): 1 Mbps 2 Mbps 5.5 Mbps 11 Mbps
Bitrate (Mbit/s) Length (bits) Time (μs) Bitrate (Mbit/s) Length (bits) Time (μs) Bitrate (Mbit/s) Length (bits) Time (μs) Bitrate (Mbit/s) Length (bits) Time (μs)
DIFS 50 50 50 50
D PHY header: PLCP preamble 1 144 144 1 72 72 1 72 72 1 72 72
A PHY header: PLCP header 1 48 48 2 48 24 2 48 24 2 48 24
T MAC headers (ad-hoc mode: 28 Bytes) 1 224 224 2 224 112 6 224 41 11 224 zus.
A MAC body 1 12000 12000 2 12000 6000 6 12000 2182 11 12000 1112
tx time data: 12466 6258 2369 1258
SIFS 10 10 10 10
A PHY header: PLCP preamble 1 144 144 1 72 72 1 72 72 1 72 72
C PHY header: PLCP header 1 48 48 2 48 24 2 48 24 2 48 24
K MAC headers 1 112 112 2 112 56 6 112 21 11 112 11
tx time ack: 314 162 127 117
tx time data + ack: 12780 6420 2496 1375
Retrieved from "https://sarwiki.informatik.hu-berlin.de/index.php?title=Packet_transmission_time_in_802.11&oldid=6799"