Abstract:

     A new synchronization scheme based on energy capture for UltraWideband (UWB) systems is proposed. With the help of judicious training symbols and symbollevel samples, the energy values of the truncated tail and head of the received symbol waveform can be obtained. Then according to the two energy values the framelevel timing acquisition is acquired. It is worth noting that with perfect knowledge of the multipath channel, the proposed scheme can achieve timing synchronization at any desirable resolution. In addition, the proposed algorithm only exploits symbollevel samples without complex searching process, thus it turns out to not only speed up the synchronization, but also enjoys lowcomplexity. Simulations and comparison confirm that the proposed algorithm outperforms existing alternatives in terms of normalized mean square error and bit error rate.

Key words: communication, ultrawideband (UWB) communications, synchronization, energy capture