Balanced-Offset Joint Acquisition of Physical Cell Identity and Radio Frame Number for NB-IoT Communication Systems
This article proposes a reduced complexity synchronization signal detection scheme in a narrowband Internet of Things (NB-IoT) system. By detecting the narrowband secondary synchronization signal (NSSS), both physical cell ID (PCID) and radio frame number (RFN) are jointly obtained during the initia...
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| Veröffentlicht in: | IEEE internet of things journal 2022-06, Vol.9 (11), p.8669-8680 |
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| container_title | IEEE internet of things journal |
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| creator | You, Young-Hwan Jung, Yong-An Lee, Sung-Hun Song, Hoon-Geun Song, Hyoung-Kyu |
| description | This article proposes a reduced complexity synchronization signal detection scheme in a narrowband Internet of Things (NB-IoT) system. By detecting the narrowband secondary synchronization signal (NSSS), both physical cell ID (PCID) and radio frame number (RFN) are jointly obtained during the initial cell search procedure in NB-IoT. To facilitate reduced complexity joint detection of the PCID and RFN, we propose an NSSS subcarrier grouping method by balancing the phase offset among NSSS subcarriers. The advantages and drawbacks of the proposed joint detector are presented by comparing the conventional joint detector in terms of performance and complexity. The probability of detection failure of the proposed detector is theoretically derived, which is further validated by means of simulation results. Both analytical results and simulations show that the proposed solution significantly decreases the computational burden with negligible performance loss, compared to the conventional detectors. |
| doi_str_mv | 10.1109/JIOT.2021.3119037 |
| format | Article |
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By detecting the narrowband secondary synchronization signal (NSSS), both physical cell ID (PCID) and radio frame number (RFN) are jointly obtained during the initial cell search procedure in NB-IoT. To facilitate reduced complexity joint detection of the PCID and RFN, we propose an NSSS subcarrier grouping method by balancing the phase offset among NSSS subcarriers. The advantages and drawbacks of the proposed joint detector are presented by comparing the conventional joint detector in terms of performance and complexity. The probability of detection failure of the proposed detector is theoretically derived, which is further validated by means of simulation results. 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| source | IEEE Electronic Library (IEL) |
| subjects | Communications systems Complexity Complexity theory Detectors Initial cell search Internet of Things Narrowband narrowband Internet of Things (NB-IoT) OFDM secondary synchronization signal Sensors Signal detection subcarrier grouping Subcarriers Synchronism Synchronization Time-domain analysis |
| title | Balanced-Offset Joint Acquisition of Physical Cell Identity and Radio Frame Number for NB-IoT Communication Systems |
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