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Performance of WLAN 802.11B Standard at In-Vehicle Environment

In this paper, we analyze the performance of IEEE 802.11b WLAN communication between access point (AP) and mobile equipment (ME) in 2.4 GHz band with noise and interference factors. WLAN communication at in-vehicle environment is assumed as the communication between electric control units (ECUs) of vehicle and central body controller in telematics field for implementing wireless vehicle control system. Received interference level from other system's mobile equipment in the same band and automobile noise from each part of vehicle can be the main factors that can cause increasing error rate of control signal. With these factors, we focus on the Eb/No the BER performance of WLAN for analyzing the characteristic of interference factors by the measured bit error rate