Orthogonal Well-Localized Weyl-Heisenberg Basis Construction and Optimization for Multicarrier Digital Communication Systems

摘要

Utilization of well-localized bases allows to improve considerably the efficiency and robustness against intercarrier (ICI) and intersymbol interference (ISI) of now existing wireless digital communication systems based on Orthogonal Frequency Division Multiplexing (OFDM). The algebraic procedure of orthogonal well-localized Weyl-Heisenberg basis construction is considered in the paper. Optimal values of basis's phase parameter are derived for several types of symmetry of the prototype function. Presented modeling results confirm good localization characteristics and enable to select the best type of symmetry. This article presents the research work related to the development of enhanced modulation technique with Orthogonal Time-Frequency Division Multiplexing (OFTDM).