Modulation and Coding Scheme on Payload

The following table provides a summary of the modulation and coding scheme for payload characteristics in 802.11n.

MCS Index

Number of spatial streams

Modulation (Stream 1/  2/  3/  4  )

Coding rate

NBPSCS(iSS)

 

NES

NSD

NCBPS

NDBPS

 

Data Rate  (in Mbps)

(GI = 800ns)

Data Rate (in Mbps)

(GI = 400ns)

20MHz

40MHz

20MHz

40MHz

20MHz

40MHz

 

 

 20MHz

40MHz

20MHz

40MHz

0

1

BPSK

1/2

1

1

1

52

108

52

108

 

 

6.5

13.5

7.2

15.0

1

1

QPSK

1/2

2

1

1

52

108

104

216

 

 

13.0

27.0

14.4

30.0

2

1

QPSK

3/4

2

1

1

52

108

104

216

 

 

19.5

40.5

21.7

45.0

3

1

16-QAM

1/2

4

1

1

52

108

208

432

 

 

26.0

54.0

28.9

60.0

4

1

16-QAM

3/4

4

1

1

52

108

208

432

 

 

39.0

81.0

43.3

90.0

5

1

64-QAM

2/3

6

1

1

52

108

312

648

 

 

52.0

108.0

57.8

120.0

6

1

64-QAM

3/4

6

1

1

52

108

312

648

 

 

58.5

121.5

65.0

135.0

7

1

64-QAM

5/6

6

1

1

52

108

312

648

 

 

65.0

135.0

72.2

150.0

8

2

BPSK

1/2

1

1

1

52

108

104

216

 

 

13.0

27.0

14.4

30.0

9

2

QPSK

1/2

2

1

1

52

108

208

432

 

 

26.0

54.0

28.9

60.0

10

2

QPSK

3/4

2

1

1

52

108

208

432

 

 

39.0

81.0

43.3

90.0

11

2

16-QAM

1/2

4

1

1

52

108

416

864

 

 

52.0

108.0

57.8

120.0

12

2

16-QAM

3/4

4

1

1

52

108

416

864

 

 

78.0

162.0

86.7

180.0

13

2

64-QAM

2/3

6

1

1

52

108

624

1296

 

 

104.0

216.0

115.6

240.0

14

2

64-QAM

3/4

6

1

1

52

108

624

1296

 

 

117.0

243.0

130.3

270.0

15

2

64-QAM

5/6

6

1

1

52

108

624

1296

 

 

130.0

270.0

144.4

300.0

16

3

BPSK

1/2

1

1

1

52

108

156

324

 

 

19.5

40.5

21.7

45.0

17

3

QPSK

1/2

2

1

1

52

108

312

648

 

 

39.0

81.0

43.3

90.0

18

3

QPSK

3/4

2

1

1

52

108

312

648

 

 

58.5

121.5

65.0

135.0

19

3

16-QAM

1/2

4

1

1

52

108

624

1296

 

 

78.0

162.0

86.7

180.0

20

3

16-QAM

3/4

4

1

1

52

108

624

1296

 

 

117.0

243.0

130.0

270.0

21

3

64-QAM

2/3

6

1

2

52

108

936

1944

 

 

156.0

324.0

173.3

360.0

22

3

64-QAM

3/4

6

1

2

52

108

936

1944

 

 

175.5

364.5

195.0

405.0

23

3

64-QAM

5/6

6

1

2

52

108

936

1944

 

 

195.0

405.0

216.7

450.0

24

4

BPSK

1/2

1

1

1

52

108

208

432

 

 

26.0

54.0

28.9

60.0

25

4

QPSK

1/2

2

1

1

52

108

416

864

 

 

52.0

108.0

57.8

120.0

26

4

QPSK

3/4

2

1

1

52

108

416

864

 

 

78.0

162.0

86.7

180.0

27

4

16-QAM

1/2

4

1

1

52

108

832

1728

 

 

104.0

216.0

115.6

240.0

28

4

16-QAM

3/4

4

1

2

52

108

832

1728

 

 

156.0

324.0

173.3

360.0

29

4

64-QAM

2/3

6

1

2

52

108

1248

2592

 

 

208.0

432.0

231.1

480.0

30

4

64-QAM

3/4

6

1

2

52

108

1248

2592

 

 

234.0

486.0

260.0

540.0

31

4

64-QAM

5/6

6

1

2

52

108

1248

2592

 

 

260.0

540.0

288.9

600.0

32

1

BPSK

1/2

1

1

1

 

48

 

48

 

 

 

6.0

 

6.7

33

2

16-QAM

QPSK

 

 

1/2

6

1

1

52

108

312

648

156

324

39

81

43.3

90

34

2

64-QAM

QPSK

 

 

1/2

8

1

1

52

108

416

864

208

432

52

108

57.8

120

35

2

64-QAM

16-QAM

 

 

1/2

10

1

1

52

108

520

1080

260

540

65

135

72.2

150

36

2

16-QAM

QPSK

 

 

3/4

6

1

1

52

108

312

648

234

486

58.5

121.5

65.0

135

37

2

64-QAM

QPSK

 

 

3/4

8

1

1

52

108

416

864

312

648

78

162

86.7

180

38

2

64-QAM

16-QAM

 

 

3/4

10

1

1

52

108

520

1080

390

810

97.5

202.5

108.3

225

39

3

16-QAM

QPSK

 QPSK

 

1/2

8

1

1

52

108

416

864

208

432

52

108

57.8

120

40

3

16-QAM

16-QAM

QPSK

 

1/2

10

1

1

52

108

520

1080

260

540

65

135

72.2

150

41

3

64-QAM

QPSK

QPSK

 

1/2

10

1

1

52

108

520

1080

260

540

65

135

72.2

150

42

3

64-QAM

16-QAM

QPSK

 

1/2

12

1

1

52

108

624

1296

312

648

78

162

86.7

180

43

3

64-QAM

16-QAM

16-QAM

 

1/2

14

1

1

52

108

728

1512

364

756

91

189

101.1

210

44

3

64-QAM

64-QAM

QPSK

 

1/2

14

1

1

52

108

728

1512

364

756

91

189

101.1

210

45

3

64-QAM

64-QAM

16-QAM

 

1/2

16

1

1

52

108

832

1728

416

864

104

216

115.6

240

46

3

16-QAM

QPSK

QPSK

 

3/4

8

1

1

52

108

416

864

312

648

78

162

86.7

180

47

3

16-QAM

16-QAM

QPSK

 

3/4

10

1

1

52

108

520

1080

390

810

97.5

202.5

108.3

225

48

3

64-QAM

QPSK

QPSK

 

3/4

10

1

1

52

108

520

1080

390

810

97.5

202.5

108.3

225

49

3

64-QAM

16-QAM

QPSK

 

3/4

12

1

1

52

108

624

1296

468

972

117

243

130.0

270

50

3

64-QAM

16-QAM

16-QAM

 

3/4

14

1

1

52

108

728

1512

546

1134

136.5

283.5

151.7

315

51

3

64-QAM

64-QAM

QPSK

 

3/4

14

1

1

52

108

728

1512

546

1134

136.5

283.5

151.7

315

52

3

64-QAM

64-QAM

16-QAM

 

3/4

16

1

1

52

108

832

1728

624

1296

156

324

173.3

360

53

4

16-QAM

QPSK

QPSK

QPSK

1/2

10

1

1

52

108

520

1080

260

540

65

135

72.2

150

54

4

16-QAM

16-QAM

QPSK

QPSK

1/2

12

1

1

52

108

624

1296

312

648

78

162

86.7

180

55

4

16-QAM

16-QAM

16-QAM

QPSK

1/2

14

1

1

52

108

728

1512

364

756

91

189

101.1

210

56

4

64-QAM

QPSK

QPSK

QPSK

1/2

12

1

1

52

108

624

1296

312

648

78

162

86.7

180

57

4

64-QAM

16-QAM

QPSK

QPSK

1/2

14

1

1

52

108

728

1512

364

756

91

189

101.1

210

58

4

64-QAM

16-QAM

16-QAM

QPSK

1/2

16

1

1

52

108

832

1728

416

864

104

216

115.6

240

59

4

64-QAM

16-QAM

16-QAM

16-QAM

1/2

18

1

1

52

108

936

1944

468

972

117

243

130.0

270

60

4

64-QAM

QPSK

QPSK

QPSK

1/2

16

1

1

52

108

832

1728

416

864

104

216

115.6

240

61

4

64-QAM

16-QAM

16-QAM

QPSK

1/2

18

1

1

52

108

936

1944

468

972

117

243

130.0

270

62

4

64-QAM

16-QAM

16-QAM

16-QAM

1/2

20

1

1

52

108

1040

2160

520

1080

130

270

144.4

300

63

4

64-QAM

64-QAM

64-QAM

QPSK

1/2

20

1

1

52

108

1040

2160

520

1080

130

270

144.4

300

64

4

64-QAM

64-QAM

64-QAM

16-QAM

1/2

22

1

1

52

108

1144

2376

572

1188

143

297

158.9

330

65

4

16-QAM

QPSK

QPSK

QPSK

3/4

10

1

1

52

108

520

1080

390

810

97.5

202.5

108.3

225

66

4

16-QAM

16-QAM

QPSK

QPSK

3/4

12

1

1

52

108

624

1296

468

972

117

243

130.0

270

67

4

16-QAM

16-QAM

16-QAM

QPSK

3/4

14

1

1

52

108

728

1512

546

1134

136.5

283.5

151.7

315

68

4

64-QAM

QPSK

QPSK

QPSK

3/4

12

1

1

52

108

624

1296

468

972

117

243

130.0

270

69

4

64-QAM

16-QAM

QPSK

QPSK

3/4

14

1

1

52

108

728

1512

546

1134

136.5

283.5

151.7

315

70

4

64-QAM

16-QAM

16-QAM

QPSK

3/4

16

1

2

52

108

832

1728

624

1296

156

324

173.3

360

71

4

64-QAM

16-QAM

16-QAM

16-QAM

3/4

18

1

2

52

108

936

1944

702

1458

175.5

364.5

195.0

405

72

4

64-QAM

64-QAM

QPSK

QPSK

3/4

16

1

2

52

108

832

1728

624

1296

156

324

173.3

360

73

4

64-QAM

64-QAM

16-QAM

QPSK

3/4

18

1

2

52

108

936

1944

702

1458

175.5

364.5

195.0

405

74

4

64-QAM

64-QAM

16-QAM

16-QAM

3/4

20

1

2

52

108

1040

2160

780

1620

195

405

216.7

450

75

4

64-QAM

64-QAM

64-QAM

QPSK

3/4

20

1

2

52

108

1040

2160

780

1620

195

405

216.7

450

76

4

64-QAM

64-QAM

64-QAM

16-QAM

3/4

22

1

2

52

108

1144

2376

858

1782

214.5

445.5

238.3

495

Table 1 - MIMO Modulation and Coding Schemes

The parameters in the table are:

 

A-MPDU

The following figure is an illustration of the 802.11n A-MPDU (Aggregation MAC Protocol Data Unit) payload structure. A-MPDU allows aggregation of multiple MPDUs (MAC protocol data unit) in one PSDU (PHY service data unit). The description and details of the medium access control (MAC) header and frame check sequence (FCS) can be found in the IEEE 802.11 legacy standard. The MAC header and FCS state can be turned ON or OFF. All the fields in the MAC header can be modified.

 

Figure 1. 802.11n A-MPDU payload structure