Abstract-We derive the uplink system model for In-band and Guard-band narrowband Internet of Things (NB-IoT). The results reveal that the actual channel frequency response (CFR) is not a simple Fourier transform of the channel impulse response, due to sampling rate mismatch between the NB-IoT user and long term evolution (LTE) base station. Consequently, a new channel equalization algorithm is proposed based on the derived effective CFR. In addition, the interference is derived analytically to facilitate the co-existence of NB-IoT and LTE signals. This letter provides an example and guidance to support network slicing and service multiplexing in the physical layer. Index Terms-Narrowband Internet of Things, network slicing, channel equalization, multi-/mixed numerology.
In REF , it proposes a new channel equalization algorithm to optimize the sampling rate of devices when NB-IoT and LTE share the same spectrum.
Channel Equalization and Interference Analysis for Uplink Narrowband Internet of Things (NB-IoT)
IEEE Communications Letters
IEEE Communications Letters
Computer Science