Co-existence of 802.11g WLANs with Bluetooth
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چکیده
Orthogonal-frequency-division multiplexing (OFDM) based wireless local-area-networks (WLANs) will be implemented in the 2.4 GHz Industrial-Scientific -Medical (ISM) band. The advantages of OFDM WLANs are very high data rates, resilience to multipath and extended operating range. However, they will encounter interference from Bluetooth (BT) devices. In this paper, the co-existence issue of OFDM WLANs with BT devices is examined and the use of symbol erasures to ameliorate this interference source is proposed. Simulation results show that the combination of data rate reduction and symbol erasures helps to prevent irreducible packet error rate (PER) when the signal-to-interference ratio (SIR) is low. However, depending on the data rate, there is a threshold for the number of erasures beyond which further improvements in system performance is not obtained.
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تاریخ انتشار 2002