Dsss transmit spectrum and channels – Siemens IEEE802.11 User Manual

Page 22

background image

WLAN-IEEE802.11 Tutorial (Maximilian Riegel), 021018-wlan-tutorial.ppt

Page 22

© Siemens, 2002

DSSS Transmit Spectrum and Channels

fc

fc -11 MHz

fc -22 MHz

Sinx/x

fc +11 MHz

fc +22 Mhz

0 dBr

-30 dBr

-50 dBr

Unfiltered

Transmit
Spectrum
Mask

&DQQHO

86$

(76,

-DSDQ

0+]

0+]

1$

0+]

0+]

1$

0+]

0+]

1$

0+]

0+]

1$

0+]

0+]

1$

0+]

0+]

1$

0+]

0+]

1$

0+]

0+]

1$

0+]

0+]

1$

0+]

0+]

1$

0+]

0+]

1$

1$

0+]

1$

1$

0+]

1$

1$

1$

0+]