电讯技术Issue(3)：318-322,5.DOI:10.3969/j.issn.1001-893x.2014.03.013
抑制OFDM系统载波间干扰的sinc功率脉冲优化
Optimized Sinc Power Pulse for Reducing Inter-carrier Interference in OFDM Systems
摘要
Abstract
Orthogonal frequency division multiplexing ( OFDM) is a promising technology and has been ap-proved for various wireless systems. However, inter-carrier interference ( ICI) occurs in OFDM due to the carrier frequency offset ( CFO) that results from Doppler spread and the drift in local oscillator frequencies of the transceiver. In this paper, a method for reducing ICI is proposed by using optimized sinc power pulse ( OSPP) . Using a parameter to optimize the sinc power pulse's sidelobe levels, the new OSPP meth-od can reduce the intensity of ICI in OFDM system. Simulation results show that, compared with existing sinc power pulse ( SPP) method, the OSPP outperforms the SPP in high mobility environment, and OFDM system with OSPP can achieve better bit error rate ( BER) performance by 3 dB than that with SPP method when the normalization frequency offset is 0 . 3 and the BER equals to 10-5 .关键词
OFDM/载波间干扰/sinc功率脉冲优化Key words
OFDM/inter-carrier interference (ICI)/optimized sinc power pulse分类
信息技术与安全科学引用本文复制引用
张志军,杨育捷,李思嘉,王鲜芳..抑制OFDM系统载波间干扰的sinc功率脉冲优化[J].电讯技术,2014,(3):318-322,5.基金项目
国家自然科学基金资助项目(61173071, U1204606) （61173071, U1204606）
河南省基础与前沿技术研究计划项目(142300410004) （142300410004）
河南省教育厅科学技术研究重点研究项目(14B510020)@@@@The National Natural Science Foundation of China (No.61173071,U1204606) （14B510020）
Basic and Frontier Technology Research Pro-gram of Henan Province(142300410004) （142300410004）
The Scientific and Technology Key Research Projects of Education Department of Henan Province(14B510020) （14B510020）
