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IEEE802dot11a >
PSDU Generator with External File, 802.11a (PSDUF11A)

PSDU Generator with External File, 802.11a (PSDUF11A)

Property	Description	Units	Default	Range/Type
MODULATION	Modulation Type	None	0	[0, 3]/Integer
CODING	Coding Rate Type	None	0	[0, 2]/Integer
NUM_OCTETS	Number of octets to read from external file	None	100	[1, Inf)/Integer
FILE	Name of the external data file	None	Required	N/A
ROUT	Output impedance	Ohm	0	[0, Inf)/Real
Ports
Input	PSDU bit stream (integer)

Limits

File name must have a “.mat” extension.

Notes

1. This model generates IEEE 802.11a PSDU bit stream using an external file.

2. The PSDU Generator reads hexadecimal integer type data from a MATLAB file (extension .mat) and converts it into a binary signal with the least significant bit (LSB) being outputted first. The file should simply contain the ASCII data to be read out. If the file contains less data than Num_Octets, then the data in the file is read periodically until Num_Octets data are read out.

3. The output bit rate is determined by the first two parameters, Modulation and Coding, as shown in Table I.

Table I IEEE 802.11a Rate-dependent parameter

Data rate (Mbits/s)	Modulation	Coding rate (R)	Coding bits per subcarrier ()	Coding bits per OFDM symbol ()	Data bits per OFDM symbol ()
6	BPSK	1/2	1	48	24
9	BPSK	3/4	1	48	36
12	QPSK	1/2	2	96	48
18	QPSK	3/4	2	96	72
24	16-QAM	1/2	4	192	96
36	16-QAM	3/4	4	192	144
48	64-QAM	2/3	6	288	192
54	64-QAM	3/4	6	288	216

Netlist Form

PSDUF11A:NAME n1 n2 [MODULATION =val] [CODING =val]
+ [NUM_OCTETS =val] [RIN=val] [ROUT=val] FILE = "filename"

Netlist Example

PSDUF11A:1 1 2 MODULATION = 2 CODING= 2 NUM_OCTETS = 200
+ FILE = "octets11a.mat"

References

1. IEEE Std 802.11a, Part 11: “Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) specifications: High-speed Physical Layer in the 5 GHz Band,” ISO/IEC 8802-11:1999/Amd 1:2000(E).

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