南京邮电大学学报（自然科学版）2012，Vol.32Issue(2)：19-23,5.
时频联合处理抑制OFDM系统子载波间干扰
Reduction of Inter-Carrier Interference in OFDM System by Time-frequency Domain Signal Processing
摘要
Abstract
In order to reduce the sensitivity to frequency offset in OFDM system, this paper proposes a joint time-frequency scheme,in which frequency-domain partial response coding(PRC) and time-domain windowing technologies are combined to shape the system spectrum. The performance of the carrier-to-interference power ratio (CIR) is analyzed and the optimum weights for PRC are derived. Simulation results show that the proposed scheme accelerates the decline of the spectrum tails,and increases the CIR power, therefore improves the error bits ratio performance. Moreover,the more sub-carriers used in PRC,the better system performance achieved.关键词
OFDM/频率偏移/子载波间干扰/部分响应/加窗Key words
OFDM frequency offset/Inter-Carrier Interference/partial response coding/ windowing分类
信息技术与安全科学引用本文复制引用
陈微微,黄学军,朱洪波..时频联合处理抑制OFDM系统子载波间干扰[J].南京邮电大学学报（自然科学版）,2012,32(2):19-23,5.基金项目
国家重点基础研究发展计划(973计划)(2007CB310600)、江苏省博士后基金(09020F26C)资助项目 （973计划）
