NDLI: A non-coherent neighbor cell search scheme for LTE/LTE-A systems

Content Provider	IEEE Xplore Digital Library
Author	Shun-Fang Liu Pei-Yun Tsai
Copyright Year	2013
Description	Author affiliation: Dept. of Electr. Eng., Nat. Central Univ., Jhongli, Taiwan (Shun-Fang Liu; Pei-Yun Tsai)
Abstract	A new neighbor cell search algorithm for LTE/LTE-A systems is presented in this paper. To improve the interference problem in channel estimation for coherent SSS detection in the conventional neighbor cell search approaches, we propose a non-coherent scheme that takes advantage of the similarity of channel responses at adjacent subcarriers. The proposed neighbor cell search procedure not only includes both PSS and SSS detection, but also can combat different carrier frequency offsets that the home cell signal and the neighbor cell signal may suffer. The removal of the home cell synchronization signals in our algorithm converts the neighbor cell PSS and SSS into new sequences for recognition, respectively. By examining the cross-correlation properties of the new sequences, we show that partial correlation can well detect the neighbor cell sector ID and group ID through the new sequences. From simulation results, it is also clear that the proposed algorithm has good detection results and outperforms the conventional coherent approaches.
Sponsorship	IEEE Commun. Soc.
Starting Page	3300
Ending Page	3305
File Size	1355771
Page Count	6
File Format	PDF
ISBN	9781467359382
ISSN	15253511
e-ISBN	9781467359399
e-ISBN	9781467359375
DOI	10.1109/WCNC.2013.6555092
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-04-07
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Channel estimation Correlation Synchronization OFDM Long Term Evolution Indexes Coherence SSS Cell search LTE synchronization carrier frequency offset PSS
Content Type	Text
Resource Type	Article

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