Efficient sequential integer CFO and sector identity detection for LTE cell search

Chun Yuan Chu, I. Wei Lai, Yi Yao Lan, Tzi Dar Chiueh

研究成果: 雜誌貢獻期刊論文同行評審

28 引文 斯高帕斯(Scopus)

摘要

In this letter, we propose an efficient algorithm for the detection of the integer carrier frequency offset (CFO) and sector identity used in the LTE cell search. For the conventional LTE cell search, the integer CFO and sector identity are jointly detected by utilizing the primary synchronization signal (PSS). By exploiting the symmetric property of the PSS, the integer CFO can be solely detected without the knowledge of sector identity, and thus, the joint detection of the integer CFO and sector identity is decoupled. Additionally, the proposed sequential integer CFO and sector identity detection (SISID) removes the effect of the channel frequency responses such that the detection accuracy is enhanced. We also design the SISID hardware architecture where the parts of the signals are processed in the polar coordinate so that all the multiplications are realized by additions/subtractions. The simulation results demonstrate that the proposed SISID achieves better detection accuracy than the conventional methods with only one third of the computational complexity.

原文英語
文章編號6807686
頁(從 - 到)389-392
頁數4
期刊IEEE Wireless Communications Letters
3
發行號4
DOIs
出版狀態已發佈 - 2014 8月
對外發佈

ASJC Scopus subject areas

  • 控制與系統工程
  • 電氣與電子工程

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