A novel m-sequence coded transmit-reference system for UWB communications

A novel transmit-reference (TR) signaling scheme for UWB systems is proposed in this paper, where by invoking m-sequence codes the reference and data pulses are transmitted side by side to increase the data rate. This structure enables demodulation with a conventional correlation receiver despite existing server inter-pulse interference (IPI). For higher output SNR, an improved demodulation scheme is also introduced while adding little to the receiver complexity. Moreover, the proposed scheme can be extended to M-ary systems to further improve the data rate and power efficiency. Both analysis and simulations are performed to demonstrate the promising performance of the proposed scheme.