Bit error rate improvement scheme for transmitted reference UWB systems

Abstract

We propose a transceiver structure that can effectively improve BER (Bit Error Rate) performance for TR-UWB (Transmitted Reference-Ultra Wide Band) systems based on impulse radios. Unlike coherent UWB systems that are too complex for practical implementation while having good BER performances, the complexity of the TR-UWB systems is quite low since they transmit data with the corresponding reference signals and demodulate the data through correlation using these received signals. However, the BER performance in the conventional TR-UWB systems is affected by SNR (Signal-toNoise Ratio) of the reference templates used in the correlator. To this end, we propose a receiver structure that can effectively improve the BER performance by increasing the SNR of reference templates. Simulation results reveal that the proposed scheme achieves significant BER improvement as compared to the conventional TR-UWB systems.

Study on the Auto-Correlation and Cross-correlation Properties of Hybrid Bridge Function Sequence

“…g  () is the pseudorandom sequences generated by the locality. According to the references [18,19]，we can get the variance of multi-path interference can be expressed by equation (6).…”