Investigation of interferences between wireless LAN signal and disturbances from spread spectrum clocking
2004
The disturbance wave from a personal computer (PC) employing spread spectrum clocking was converted to the frequency range using a wireless LAN system. The wave was impressed on to the wireless LAN signal to investigate its influence on the radio telecommunication system using a broadband signal. The results indicate that the influence from a PC employing spread spectrum clocking was more serious than that from a PC not employing spread spectrum clocking. A frequency modulation signal and white noise were also impressed on to the wireless LAN signal. The result indicated that the frequency modulation signal, whose modulation frequency is from 1 kHz to 10 kHz and modulation frequency deviation is the same as that of the disturbances from a PC employing spread spectrum clocking, can be used as the artificial source to investigate the interference.
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