Interference and Distance Studies for DS-UWB
نویسندگان
چکیده
This paper discusses ultra wideband (UWB) system bit error rate (BER) performance in additive white Gaussian noise (AWGN) channel in the presence of partial band interference. In most of the cases in UWB context, even narrowband interference approaches are reasonable. The study has focused on direct sequence (DS) based UWB system that utilizes binary pulse amplitude modulation (BPAM) as a data modulation scheme. Interference is assumed to be band limited and Gaussian distributed, and the presented analysis allows arbitrary interference allocations. Derived BER formulas are verified with the corresponding simulation results. It has been shown that the general BER formulas for wideband systems can also be applied to UWB to calculate the upper bound limit for the system performance in the presence of interference. Signal-tonoise and signal-to-interference (SNR and SIR, respectively) ratios providing the required BER can then be applied to calculate the minimum interference distance that satisfies the quality of service requirements.
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