Research on the differential code-shifted reference ultra-wideband with large code length
Code length, Differential code-shifted reference, Impulse radio, Ultra wideband
Advanced Science Letters
Differential code-shifted reference (DCSR) transceiver is a recently developed pulse-based Ultra-Wideband (UWB) technology aiming at low-complexity and low-power consumption wireless communication applications. As compared to the traditional coherent receiver, the DCSR receiver does not need to estimate the waveform of the receiver signal, and hence has a much lower system complexity. Moreover, the DCSR transceiver separating the reference and data pulse sequences with a set of shifting and detection codes selected from Walsh codes, therefore it does not need the delay element with an ultra wide bandwidth required by the traditional transmitted reference transceiver. This paper analyzes the bit-error-rate (BER) performance of the DCSR transceivers with a code length of 16. The theoretical expressions for the BER with a code length of 16 are derived and verified by computer simulation. Furthermore, the performance of the DCSR transceiver is investigated for different code lengths. The results show that DCSR transceiver with large code length gives the similar BER performance in multipath channel as compared to that with shorter code length. However using large code length makes the receiver more susceptive to narrowband interference. © 2012 American Scientific Publishers.
Original Publication Date
DOI of published version
Xu, Zhi Meng; Nie, Hong; Chen, Zhi Zhang; and Yu, Lun, "Research on the differential code-shifted reference ultra-wideband with large code length" (2012). Faculty Publications. 1772.