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WiSUN FAN1.1 PHY Operating Modes

Wi-SUN mode used to identify the Wi-SUN PHY operating modes is defined by the Wi-SUN specification.

This protocol uses 2FSK or OFDM based on the selected operating mode.

 

 

1.  FAN1.1 2FSK PHY Operating Modes

 

Operating Mode ID Symbol rate (ksymbol/s) Modulation Index FEC  
1 50 0.5 False  
2 50 1 False  
3 100 0.5 False  
4 100 1 False  
5 150 0.5 False  
6 200 0.5 False  
7 200 1 False  
8 300 0.5 False  
17 50 0.5 True  
18 50 1 True  
19 100 0.5 True  
20 100 1 True  
21 150 0.5 True  
22 200 0.5 True  
23 200 1 True  
24 300 0.5 True  

 

 

 

 

 

2.  FAN1.1 OFDM PHY Operating Modes

 

♦ Operating Modes

Operating Mode ID OPTion MCS FEC  
34~38 1 2~6 FALSE  
51~54 2 3~6 FALSE  
68~70 3 4~6 FALSE  
84~86 4 4~6 FALSE  

 

 

♦ OFDM Modes

IEEE 802.15.4g parameters   OPT1 OPT2 OPT3 OPT4 Units  
FFT SIZE   128 64 32 16 #  
Tone spacing   10416.67 10416.67 10416.67 10416.67 Hz  
FFT duration in µs   96 96 96 96 microSec  
Guard period (GP)   24 24 24 24 microSec  
Total symbol period with GP   120 120 120 120 microSec  
Symbol rate   8.33 8.33 8.33 8.33 kSymb/sec  
# Active (data+pilot) tones   104 52 26 14 #  
# Data tones   96 48 24 12 #  
# Pilot tones   8 4 2 2 #  
# DC null tone   1 1 1 1 #  
Approximate signal BW   1094 552 281 156 kHz  
Modulation types in IEEE 802.15.4g MCS# OPT1 OPT2 OPT3 OPT4 Units  
BPSK 1/2 rate coded and 4x repetition MCS0 100 50 25 12.5 kbps  
BPSK 1/2 rate coded and 2x repetition MCS1 200 100 50 25 kbps  
QPSK 1/2 rate coded and 2x repetition MCS2 400 200 100 50 kbps  
QPSK 1/2 rate coded MCS3 800 400 200 100 kbps  
QPSK 3/4 rate coded MCS4 1200 600 300 150 kbps  
16-QAM 1/2 rate coded MCS5 1600 800 400 200 kbps  
16-QAM 3/4 rate coded MCS6 2400 1200 **600 300 kbps  

*MCS0, OPT22: (8333 Symb/sec) * (48 tones) * (1bit BPSK) * (1/2 rate) * (4x repetition, use 1/4) = 50 kbps.

**MCS6, OPT3: (8333 Symb/sec) * (24 tones) * (4bits 16QAM) * (3/4 rate) = 600 kbps

 

 

 

 

 

 

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