电讯技术2012，Vol.52Issue(1)：27-32,6.DOI:10.3969/j.issn.1001-893x.2012.01.006
基于最大似然序列估计的MSDD OFDM载波间干扰抑制法
ICI Suppression Methods Based on Maximum Likelihood Sequence Estimation for MSDD OFDM Systems
贾子彦 1半田志郎2
作者信息
- 1. 江苏技术师范学院电气信息工程学院,江苏常州213001
- 2. 信州大学工学部,日本长野380-8553
- 折叠
摘要
Abstract
To suppress the intercarrier interference(ICI)in multiple-symbol differential detection(MSDD)orthogonal frequency division multiplexing(OFDM)systems,statistical effects of ICI are analysed and then considered in the maximum likelihood sequence estimation(MLSE)process.Afterwards,a method,which can estimate and suppress the ICI by utilizing the knowledge of all the subcarriers in the MLSE process,is proposed.To reduce the computational complexity,several suboptimal ICI suppression methods,which utilize the knowledge of part of the subcarriers,are further proposed.Simulation results show that the proposed suboptimal methods can significantly enhance the bit error rate(BER)performances in both flat and frequency selective Rayleigh fading channels.关键词
OFDM/载波间干扰抑制/多符号差分检测/最大似然序列估计Key words
OFDM/intercarrier interference suppression/multiple-symbol differential detection/maximum likelihood sequence estimation分类
信息技术与安全科学引用本文复制引用
贾子彦,半田志郎..基于最大似然序列估计的MSDD OFDM载波间干扰抑制法[J].电讯技术,2012,52(1):27-32,6.
