电子科技大学学报Issue(1)：48-53,6.DOI:10.3969/j.issn.1001-0548.2016.01.007
一种变窗长同时同频全双工自干扰信道估计算法
A CCFD Self-Interference Channel Estimation Algorithm with Variable Window
摘要
Abstract
In the co-time co-frequency full duplex (CCFD), the nonlinear effects of transmit-receive path as well as environment change would change the channel estimation accuracy. A self-interference channel estimation algorithm based on discrete Fourier transform (DFT) with variable window length is introduced. The algorithm can select the best window size according to the channel characteristics and therefore improve the self-interference channel estimation accuracy. Simulation shows that the digital self-interference cancellation with this proposed algorithm is 22 dB when interference-to-noise ratio is 15 dB, which is 7 dB and 3 dB higher than least squares (LS) algorithm and the traditional DFT-based algorithm, respectively.关键词
信道估计/同时同频全双工/数字自干扰抑制/离散傅里叶变换Key words
channel estimation/CCFD/digital self-interference cancellation/discrete Fourier transforms分类
信息技术与安全科学引用本文复制引用
徐强,刘凤威,全欣,赵宏志,唐友喜..一种变窗长同时同频全双工自干扰信道估计算法[J].电子科技大学学报,2016,(1):48-53,6.基金项目
国家自然科学基金(61271164,61471108,61201266)；重大专项(2014ZX03003001-002)；国家电网公司科技项目(SGSCDKJLZJKJ1400099) （61271164,61471108,61201266）
