9 papers
Neural RF SLAM for unsupervised positioning and mapping with channel state information
Shreya Kadambi, Arash Behboodi, Joseph B. Soriaga +4
We present a neural network architecture for jointly learning user locations and environment mapping up to isometry, in an unsupervised way, from channel state information (CSI) va…
Spatial Indexing for System-Level Evaluation of 5G Heterogeneous Cellular Networks
Roohollah Amiri, Eren Balevi, Jeffrey G. Andrews +1
System level simulations of large 5G networks are essential to evaluate and design algorithms related to network issues such as scheduling, mobility management, interference manage…
Lens-based Millimeter Wave Reconfigurable Antenna NOMA
Mojtaba Ahmadi Almasi, Roohollah Amiri, Mojtaba Vaezi +1
This paper proposes a new multiple access technique based on the millimeter wave lens-based reconfigurable antenna systems. In particular, to support a large number of groups of us…
Multi-Stream LDPC Decoder on GPU of Mobile Devices
Roohollah Amiri, Hani Mehrpouyan
Low-density parity check (LDPC) codes have been extensively applied in mobile communication systems due to their excellent error correcting capabilities. However, their broad adopt…
Reinforcement Learning for Self-Organization and Power Control of Two-Tier Heterogeneous Networks
Roohollah Amiri, Mojtaba Ahmadi Almasi, Jeffrey G. Andrews +1
Self-organizing networks (SONs) can help manage the severe interference in dense heterogeneous networks (HetNets). Given their need to automatically configure power and other setti…
A New Millimeter Wave MIMO System for 5G Networks
Mojtaba Ahmadi Almasi, Roohollah Amiri, Hani Mehrpouyan
Millimeter Wave (mmWave) band provides a large spectrum to meet the high-demand capacity by the 5th generation (5G) wireless networks. However, to fully exploit the available spect…