Abstract
Impulse radio ultra-wideband (IR-UWB) is a radio technology transmitting information over a broad bandwidth which can take in narrowband signals from the existing wireless systems and have them as narrowband interference (NBI). The interference will definitely degrade the system performance. For better communication of Wireless Body Area Networks (WBANs), it is important to evaluate the performance of the system properly. In this paper, bit error rate (BER) and packet error rate (PER) are used to evaluate the performance of the IEEE 802.15.6 standard-based IR-UWB transmission systems in both additive white Gaussian noise and CM4 multipath channels with and without the NBIs respectively. And it is the first time to use variance-detection-based receivers in the IEEE 802.15.6 standard-based systems. Simulation results show that comparing with conventional energy-detection-based receivers, the variance-detection-based receivers have better interference tolerance in the IEEE 802.15.6 IR-UWB systems.
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