Heterogeneous multi-layer access and RRM for the internet of things

This paper first introduces a heterogeneous IoT access network architecture for the Internet of Things (IoT). In the network, an IoT terminal can adaptively access to a wireless sensor network (WSN) gateway or a cellular base station (BS) according to the channel conditions. The heterogeneous IoT access network schedules the IoT terminal to access to either the WSN or the cellular network (CN) via a joint scheduling RRM algorithm. The simulations show that the heterogeneous IoT system provides a capacity gain over the simple combination of WSN and CN.