IEEE802.11b and Bluetooth (BT) have been comprehensively used as the core technologies of WLAN and WPAN respectively. However, since they both operate in the 2.4GHz ISM frequency band, mutual interference between them can be significant. In this paper, we evaluate the impact of BT interference to 802.11b systems in an office environment by a set of experiments. We include the experimental results that evaluate the narrowband interference problem in IEEE802.11b networks; and, we specify the attenuation requirement of interference suppression technologies utilised by the IEEE802.11b system.
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