Orthogonal Multiplexing in a Subspace of Frequency Well-Localized Signals

摘要

A multiplexing scheme onto K OFDM subcarriers arranges M Ȧ4; K dimensions to shape the signal''s transmit spectrum while the remaining K - M dimensions are used to orthogonally multiplex data symbols. This results in a new class of basis functions along with an equivalent precoder structure. In particular, N-continuous OFDM signals are realized as an orthogonal multiplex.