全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

基于白化残留ICI和噪声的最优线性ICI消除算法

DOI: 10.13190/j.jbupt.2014.04.011, PP. 49-53

Keywords: 正交频分复用,残留载波间干扰,带状近似,白化矩阵

Full-Text   Cite this paper   Add to My Lib

Abstract:

针对传统算法将残留载波间干扰(ICI)当白噪声处理引起系统性能下降的问题,提出一种白化残留ICI和噪声的最优线性ICI消除算法.首先对残留ICI和噪声进行白化,其次基于最大化系统可达速率,推出了最优线性ICI消除矩阵,并结合连续干扰消除算法,实现了时变信道带来的时间分集.仿真表明,该算法克服了传统算法带状近似引起系统性能损失的缺点,并适用于当前信道估计精度下的OFDM系统.

References

[1]  Chen Shaoping, Dai Guangfa, Rao Wengui. ICI mitigation and diversity gain for OFDM systems in time-varying multipath fading channels[J]. European Transactions on Telecommunications, 2011, 22(2): 61-67.
[2]  Senol H, Poor H V. Joint channel estimation, equalization, and data detection for OFDM systems in the presence of very high mobility[J]. IEEE Transactions on Signal Processing, 2010, 58(8): 4225-4238.
[3]  Cai Xiaodong, Georgios B G. Bounding performance and duppressing intercarrier interference in wireless mobile OFDM[J]. IEEE Trans on Commun, 2003, 51(12): 2047-2056.
[4]  Schniter P. Low-complexityequalization of OFDM in doubly-selective channels[J]. IEEE Trans on Signal Processing, 2004, 52(4): 1002-1011.
[5]  Luca R, Paolo B, Geert L. Simple equalization of time-varying channels for OFDM[J]. IEEE Communications Letters, 2005, 9(7): 619-621.
[6]  Panayirci E, Dogan H, Vincent P H. Low-complexity MAP-based successive data detection for coded OFDM systems over highly mobile wireless channels[J]. IEEE Trans on Veh Technol, 2011, 60(6): 2849-2857.
[7]  Wang Haiwei, Lin David W, Tzu-Hsien Sang. OFDM signal detection in doubly selectie channels with blockwise whitening of residual intercarrier interference and noise[J]. IEEE Journal On Selected Areas in Communications. 2012, 30(4): 684-694.
[8]  Tomasz H, Saptarshi D, Gerald M, et al. Practical estimation of rapidly varying channels for OFDM systems[J]. IEEE Trans on Commun, 2011, 59(11): 3040-3048.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133