Novel UWB transmitted reference schemes

This paper proposes an ultra-wideband (UWB) transmitted reference (TR) signaling method to transmit and detect information in a multiuser multipath environment using a simple transceiver structure and the single user performance is analyzed. This TR scheme is a generalized model which combines the traditional TR and differential TR techniques Y.L. Chao et al., (2003) to increase power efficiency and improve bit error probability (BEP). In addition, this novel TR scheme can transmit data using either binary or M-ary modulation. In the binary system, transmitted signals are designed so that the noise level in a correlator template can be reduced within a restrictive receiver complexity. The M-ary modulation approach with a conventional correlation receiver can enhance the BEP performance by transmitting data bits through block codes other than the repetition code. Results show that orthogonal and biorthogonal codes outperform the repetition code in the bit error probability sense.