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Sequence Designs for Interference Mitigation in Multi-Cell Networks
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DOI：10.1109/TWC.2013.120413.130703.png)
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摘要
En 中文
We propose a training sequence that can be used at the handshaking stage for multi-cell networks. The proposed sequence is theoretically proved to enjoy several nice properties including constant amplitude, zero autocorrelation, and orthogonality in multipath channels. Moreover, the analytical results show that the proposed sequence can greatly reduce the multi-cell interference (MCI) induced by carrier frequency offset (CFO) to a negligible level. Therefore, the CFO estimation algorithms designed for single-user or single-cell environments can be slightly modified, and applied in multi-cell environments; an example is given for showing how to modify the estimation algorithms. Consequently, the computational complexity can be dramatically reduced. Simulation results show that the proposed sequences and the CFO estimation algorithms outperform conventional schemes in multi-cell environments.
Keyword:
Sequence designs
multi-cell interference (MCI)
synchronization
OFDM
CFO estimation
期刊
IF:
10.7
论文数:
1.3W
被引数:
5.3W
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