Research Article
Application of Time-Varying Filter in Time-Frequency Resource Allocation
@INPROCEEDINGS{10.1007/978-3-319-73564-1_70, author={Zhongchao Ma and Liang Ye and Xuejun Sha}, title={Application of Time-Varying Filter in Time-Frequency Resource Allocation}, proceedings={Machine Learning and Intelligent Communications. Second International Conference, MLICOM 2017, Weihai, China, August 5-6, 2017, Proceedings, Part I}, proceedings_a={MLICOM}, year={2018}, month={2}, keywords={Time-frequency transform Time-varying filter Root raised cosine signal}, doi={10.1007/978-3-319-73564-1_70} }- Zhongchao Ma
Liang Ye
Xuejun Sha
Year: 2018
Application of Time-Varying Filter in Time-Frequency Resource Allocation
MLICOM
Springer
DOI: 10.1007/978-3-319-73564-1_70
Abstract
With the rapid development of wireless communication industry, the problem of spectrum resource scarcity is becoming more and more serious. To improve the spectral efficiency by compressing the adjacent carrier frequency intervals will increase the inter carrier interference. At this point, the performance of time-invariant filter is poor. If the communication system can make full use of the low energy slots in the time-frequency domain, the spectral efficiency could be improved. This paper proposes a time-frequency resource allocation method in which there is a delay of half a symbol between adjacent carriers. Accordingly, a time-varying filter is proposed. The simulation results show that the proposed time-varying filter performs better than the time-invariant filter.