Application of Gabor Transform in a Novel Time Frequency Division Multiplex System

In recent years, for the aim to improve the spectrum efficiency many proposals are putted forward such as multiple inputs and multiple outputs system. Orthogonal frequency division multiplexing system and high-order QAM modulation system. These systems must involve large multi-user and multi- carrier signal detection problems, and for the future wireless communication systems, this is a very important issue. This paper introduces a new, overlapped time-frequency division multiplex system. In this new system, the elimination mechanism for inter-symbol interference is unnecessary and only need to detect the symbol sequence code to distinguish the different original signal. Based on a gabor transform method, a rapid detection algorithm and decoding program is presented.