Orthogonal Pulse Shape Modulation for Impulse Radio

"In this paper we propose and test a new modulation strategy to be used in impulse-radio ultra-wide band (IR-UWB) modulation. The use of short-duration pulses to convey information has recently emerged as a powerful alternative to future-generation spread-spectrum wireless systems. The proposed method has shown significant advantages over existing modulation schemes for IR-UWB modulation, specially when a high throughput is desired. The technique is based on the design of pulses using Hermite functions, such that an orthogonal M-ary modulation scheme is obtained. The paper presents detailed information of the design procedure and simulations showing preliminary results for AWGN channels."