TIIS (한국인터넷정보학회)
Current Result Document :
| 한글제목(Korean Title) |
A half subcarrier guard band spectrum assignment scheme for multi-user FBMC systems |
| 영문제목(English Title) |
A half subcarrier guard band spectrum assignment scheme for multi-user FBMC systems |
| 저자(Author) |
Wei Huang
Hongbo Xu
Zhongnian Li
|
| 원문수록처(Citation) |
VOL 16 NO. 01 PP. 0350 ~ 0364 (2022. 01) |
한글내용
(Korean Abstract) |
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영문내용
(English Abstract) |
Traditionally, in multi-user multi-carrier systems, the neighboring subband will be gapped by one subcarrier, which is set as guard band to reduce multiple access interference (MAI) between neighboring subbands. The empty subcarrier for guard band will degrade the spectral efficiency of the whole system. In order to enhance the spectral efficiency of multi-user filter bank multiple carrier (FBMC) systems, a new subband allocation method is introduced, in which the neighboring subband is gapped by half subcarrier instead of one subcarrier. Meanwhile, in order to implement the proposed resource allocation scheme, an optimized FBMC prototype filter is designed to decrease the inter-subband interference to the neighboring subband. The detailed simulations about the comparison between the proposed spectrum assignment and traditional FBMC are given, as well as the performance in the different interference scenarios. The simulation results show that the combination of the proposed spectrum assignment scheme and the optimized filter has better performance compared to the traditional scheme. The proposed scheme can be used in the system which serves massive users to get higher spectrum efficiency. |
| 키워드(Keyword) |
filter bank multiple carrier
frequency guard band
half subcarrier gap
multiple access interference
optimized prototype filter
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| 파일첨부 |
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