Average CW | 15 | blocks |
SlotTime | 20 | us |
SIFS | 10 | us |
DIFS | 50 | us |
Preamamble | 144 | bit |
PLCPHeader | 48 | bit |
PLCPRate | 1000000 | bps |
FCSLen | 32 | bit |
BasicRate | 1000000 | bps |
DataRate | 11000000 | bps |
TCPSegmentSize | 1460 | Bytes |
TCPDataFrameSize | 1520 | Bytes |
TCPAckFrameSize | 68 | Bytes |
MacAckFrameSize | 28 | Bytes |
PropagationDelay | 2 | us |
|
TCP Data |
|||||||
DIFS |
Backoff |
Preamble |
PLCP |
Data |
FCS |
Delay |
Total |
|
time(us) |
50.00 |
300.00 |
144.00 |
48.00 |
1105.45 |
2.91 |
2.00 |
1652.36 |
|
MAC Ack |
|||||||
SIFS |
|
Preamble |
PLCP |
Data |
FCS |
Delay |
Total |
|
time(us) |
10.00 |
|
144.00 |
48.00 |
20.36 |
2.91 |
2.00 |
227.27 |
|
TCP Ack(us) |
|||||||
DIFS |
Backoff |
Preamble |
PLCP |
Data |
FCS |
Delay |
Total |
|
time(us) |
50.00 |
300.00 |
144.00 |
48.00 |
0.00 |
2.91 |
2.00 |
546.91 |
TCP 프레임 하나 전송에 걸리는 시간 = TCP_Data + TCP_Ack + 2 * MAC_Ack = 2644 us
별다른 지연이 없다고 할 때,TCP에서 측정한 Goodput = 4417549 bps = 539.25 KB/s
생각보다 적게 나온다. 계산 잘못했나?ㅋㅋ
