Random Access Preamble Design and Detection for 3GPP Narrowband IoT Systems

Narrowband Internet of Things (NB-IoT) is an emerging cellular technology that will provide improved coverage for massive number of low-throughput low-cost devices with low device power consumption in delay-tolerant applications. A new single tone signal with frequency hopping has been designed for...

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Bibliographic Details
Published inIEEE wireless communications letters Vol. 5; no. 6; pp. 640 - 643
Main Authors Xingqin Lin, Adhikary, Ansuman, Eric Wang, Y.-P
Format Journal Article
LanguageEnglish
Published Piscataway IEEE 01.12.2016
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Alarm systems
Bandwidth
Computer simulation
False alarms
Frequency hopping
Internet of Things
Low power electronics
low power wide area access
machine type communications
machine-to-machine
Narrowband
narrowband Internet of Things
OFDM
Power consumption
Random access
Random access networks
Receivers
Time of arrival estimation
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Summary:Narrowband Internet of Things (NB-IoT) is an emerging cellular technology that will provide improved coverage for massive number of low-throughput low-cost devices with low device power consumption in delay-tolerant applications. A new single tone signal with frequency hopping has been designed for NB-IoT physical random access channel (NPRACH). In this letter, we describe this new NPRACH design and explain in detail the design rationale. We further propose possible receiver algorithms for NPRACH detection and time-of-arrival estimation. Simulation results on NPRACH performance including detection rate, false alarm rate, and time-of-arrival estimation accuracy are presented to shed light on the overall potential of NB-IoT systems.
ISSN:2162-2337
2162-2345
DOI:10.1109/LWC.2016.2609914