3 papers
cs.NI2018
NOMA Aided Narrowband IoT for Machine Type Communications with User Clustering
Ali Shahini, Nirwan Ansari
To support Machine Type Communications (MTC) in next generation mobile networks, NarrowBand-IoT (NB-IoT) has been released by the Third Generation Partnership Project (3GPP) as a p…
cs.NI2018
Energy Efficient Resource Allocation in EH-enabled CR Networks for IoT
Ali Shahini, Abbas Kiani, Nirwan Ansari
With the rapid growth of Internet of Things (IoT) devices, the next generation mobile networks demand for more operating frequency bands. By leveraging the underutilized radio spec…
cs.NI2017
Joint Spectrum Allocation and Structure Optimization in Green Powered Heterogeneous Cognitive Radio Networks
Ali Shahini, Nirwan Ansari
We aim at maximizing the sum rate of secondary users (SUs) in OFDM-based Heterogeneous Cognitive Radio (CR) Networks using RF energy harvesting. Assuming SUs operate in a time swit…