关键词: 超宽带正交频分复用, 联合估计, 载波间干扰

Abstract:

The joint estimation (JE) method is proposed to combat inter-carrier interference (ICI) problem in ultrawideband orthogonal frequency division multiplexing (UWBOFDM) system. The JE receiver can estimate the ICI matrix and eliminate the interference by multiply the received signal with the inversion of ICI matrix. Simulation results show that the JE receiver could eliminate the error floor that is brought about by ICI.

Key words: ultra-wideband orthogonal frequency division multiplexing, joint estimation, inter-carrier interference