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System Simulator >
System Component Models >
IEEE802dot11a >
CP Addition, 802.11a (CPADD11A)

CP Addition, 802.11a (CPADD11A)

Property	Description	Units	Default	Range/Type
PURPOSE	SIGNAL field {0} DATA field {1}	None	1	[0, 1]/Integer
MODULATION	Modulation Type	None	0	[0, 3]/Integer
CODING	Coding Rate Type	None	0	[0, 2]/Integer
LENGTH	Length of PSDU (number of octets)	None	100	[1, 4095]/Integer
RIN	Input impedance	Ohm	Inf	(0, Inf]/Real
ROUT	Output impedance	Ohm	0	[0, Inf)/Real
Ports
Input	Signal before cyclic prefix addition (complex)
Output	Signal after cyclic prefix addition (complex)

Limits

Notes

1. This model can be used to add cyclic prefix (CP) into the outputs of 64-point IFFT, according to IEEE 802.11a standard.

2. The input time domain signal c₀,...,63 are extended using cyclic prefix (CP) as follows:

(1)

and then multiplied with the window function

(2)

3. The time domain samples of SIGNAL field are appended with one sample overlap to the preamble. The time domain samples of the first DATA symbol are appended with one sample overlap to the SIGNAL field symbol. The symbols of DATA field are appended after the other with one sample overlap.

Netlist Form

CPADD11A:NAME n1 n2 [PURPOSE =val] [MODULATION =val]
+ [CODING =val] [LENGTH =val] [RIN=val] [ROUT=val]

Netlist Example

CPADD11A:1 1 2 MODULATION = 2 CODING= 2 LENGTH = 100

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).

2. J. Terry and J. Heiskala, Proakis, OFDM Wireless LANs: A Theoretical and Practical Guide, Sams Publishing, 2002.

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