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Table 3 IEEE 802.11g PHY/MAC parameters

From: Real-time communication in IEEE 802.11s mesh networks: simulation assessment considering the interference of non-real-time traffic sources

Parameter

Description

Value

Data rate

Constant data rate

24 Mbps

 

(no rate adaptation)

 

Basic rate

—

6 Mbps

Channel number

Fixed channel number

6 (2.437 GHz)

Channel width

—

20 MHz

Energy detection

—

−96 dBm

threshold

  

Cca mode 1 threshold

Clear channel assessment

−99 dBm

 

threshold

 

Antenna type

—

Omnidirectional

Tx/Rx gain

Antenna gain for

1.0 dBi

 

transmission/reception

 

Tx power

Transmission power level

16.0206 dBm

  

(40 mW)

Rx noise figure

SNR degradation in the

7 dB

 

receiver

 

Propagation loss

—

Log-distance

model

  

Error rate model

—

Nist OFDM [44, 45]

aCW min

Minimum contention

15

 

window size

 

aCW max

Maximum contention

1,023

 

window size

 

aSlotTime

Slot time duration

20 μ s

T SIFS

Short interframe space

10 μ s

 

(aSIFSTime)

 

T SYM

Symbol interval

4 μ s

 

(BPSK-OFDM)

 

T SIG

Signal BPSK-OFDM

4 μ s

 

symbol duration

 

T SIGEX

Signal extension duration

6 μ s

T PRE

PLCP preamble

16 μ s

 

duration

 

T ACK

ACK transmission duration

34 μ s

N DBPS

Number of bits per

96 bits

 

OFDM symbol

 

MACheader

MAC header size with QoS

26 bytes