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Article: Test WLAN for interference: a spectrum analyzer can be an important tool when setting up a wireless network.
- Article from:
- Communications News
- Article date:
- October 1, 2006
- Author:
CopyrightCOPYRIGHT 2006 Nelson Publishing. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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As wireless signals travel through the medium, they undergo a loss in the signal strength due to signal attenuation caused by the medium and obstacles. This attenuation is exponential and the signal drops to several orders within a short distance. With the loss of signal strength, bit error rate (BER) of the transmitted data increases. Radio frequency (RF) interference from other sources can further increase the BER. This can result in sluggish performance, as the sending station may not receive acknowledgments for its transmitted data from the receiving station.
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Moreover, this may require the sending station to resend the data ...