An efficient pre-equalization technique for TDD OFDM systems

TDD OFDM system에서의 효율적인 pre-equalization기법

  • Choi, Shin-Il (Department of Electronics and Communications Engineering, Kwangwoon University) ;
  • Yang, Seung-Yik (Department of Electronics and Communications Engineering, Kwangwoon University) ;
  • Oh, Hyuk-Jun (Department of Electronics and Communications Engineering, Kwangwoon University)
  • 최신일 (광운대학교 전자통신공학과) ;
  • 양승익 (광운대학교 전자통신공학과) ;
  • 오혁준 (광운대학교 전자통신공학과)
  • Published : 2006.06.21

Abstract

This paper investigates an efficient pre-equalization technique that can be applied on the up-link of a time division duplex (TDD) orthogonal frequency division multiplexing (OFDM) systems. This technique provides the spectral efficiency by omitting the usage of training sequences on the up-link. In this paper, the performance of a variety of pre-equalization techniques is analyzed and simulations are performed by applying power efficient pre-equalization algorithms with phase and amplitude & phase pre-equalization in the Rayleigh fading channel.

Keywords