Frequency Offset Tolerant Synchronization Signal Design in NB-IoT

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ID: 113881
2018
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Abstract
Timing detection is the first step and very important in wireless communication systems. Timing detection performance is usually affected by the frequency offset. Therefore, it is a challenge to design the synchronization signal in massive narrowband Internet of Things (NB-IoT) scenarios where the frequency offset is usually large due to the low cost requirement. In this paper, we firstly proposed a new general synchronization signal structure with a couple of sequences which are conjugated to remove the potential timing error that arises from large frequency offset. Then, we analyze the suitable sequence for our proposed synchronization signal structure and discuss a Zadoff–Chu (ZC) sequence with root 1 as an example. Finally, the simulation results demonstrate that our proposed synchronization signal can work well when the frequency offset is large. It means that our proposed synchronization signal design is very suitable for the massive NB-IoT.
Reference Key
zou2018sensorsfrequency Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Jun Zou;Chen Xu;Zou, Jun;Xu, Chen;
Journal sensors
Year 2018
DOI
10.3390/s18114077
URL
https://www.mdpi.com/1424-8220/18/11/4077#citedby
Keywords
Internet of Things synchronization signal timing detection large frequency offset

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