Bandwidth required

0424-EX-ST-2002 Text Documents

Wavion Ltd.

2002-12-03ELS_59177

Wireless-Lan system bandwidth measurements The bandwidth of the Wireless-Lan system is defined as the main-lobe nul-to-null bandwidth of the modulated signal. In all 4 modes (BPSK, QPSK, CCK-5.5 and CCK- 11) this bandwidth results from keying the signal phase at a baud-rate of 11 Mb/s. The resulted spectrum is equivalent to an ideal SIN(X)/X, filtered by a shaping filter that reduces signal side-lobes down to -30 dBc. The ideal SIN(X)/X as well as the standard spectral mask for IEEE-802.11/b compatible system is shown in the following figure.


Document Created: 2002-12-03 10:48:27
Document Modified: 2002-12-03 10:48:27
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