Physical Cell ID Detection Probabilities Using Frequency Domain PVS Transmit Diversity for NB-IoT Radio Interface

Inhalt:
This paper proposes frequency domain precoding vector switching (PVS) transmit diversity for synchronization signals aiming to achieve fast physical cell identity (PCID) detection for the narrowband (NB)-Internet-of-Things (IoT) radio interface. More specifically, we propose localized and distributed PVS transmit diversity schemes for the narrowband primary synchronization signal (NPSS) and narrowband secondary synchronization signal (NSSS), and detection methods for the NPSS and NSSS at a receiver. We compare detection probabilities for the NPSS and NSSS, i.e., PCID using the proposed frequency domain PVS transmit diversity schemes to those using the conventional time domain PVS transmit diversity scheme based on link-level simulations. The computer simulation results show that both the distributed and localized PVS transmit diversity schemes achieve almost the identical PCID detection probability to that of the time domain PVS transmit diversity scheme under a small frequency offset condition.