102 citations · 536 across the 37 of their papers we have counts for
40 papers
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…
Attenuation of Several Common Building Materials in Millimeter-Wave Frequency Bands: 28, 73 and 91 GHz
Nozhan Hosseini, Mahfuza Khatun, Changyu Guo +5
Future cellular systems will make use of millimeter wave (mmWave) frequency bands. Many users in these bands are located indoors, i.e., inside buildings, homes, and offices. Typica…
Hybrid Localization: A Low Cost, Low Complexity Approach Based on Wi-Fi and Odometry
Letizia Moro, Hani Mehrpouyan
Localization in indoor environments is essential to further support automation in a wide array of scenarios. Moreover, direction-of-arrival knowledge is essential to supporting hig…
Indoor and Outdoor Penetration Loss Measurements at 73 and 81 GHz
Mahfuza Khatun, Changyu Guo, David Matolak +1
In this paper, we present millimeter-wave (mmWave) penetration loss measurements and analysis at E-bands-73 GHz and 81 GHz. Penetration loss was measured for common building materi…
Millimeter-Wave Path Loss at 73 GHz in Indoor and Outdoor Airport Environments
Mahfuza Khatun, Changyu Guo, Letizia Moro +2
In this paper, two large-scale fading path loss models are presented based on indoor and outdoor channel measurements at 73 GHz. The line-of-sight millimeter-wave propagation measu…
A Compact and High Gain Dielectric-Loaded 60GHz Multi-Stepped Waveguide Antenna Array
Saeideh Shad, Hani Mehrpouyan
In this paper, a wideband high-gain 2 ? 2-element subarray is presented for 60 GHz band applications. The antenna is fed with waveguide-fed cavity backed configuration and designed…
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…
Waveguide-Fed Lens Based Beam-Steering Antenna For 5G Wireless Communications
Saeideh Shad, Shafaq Kausar, Hani Mehrpouyan
In this paper, a two-dimensional cylindrical Lens antenna based on the parallel plate technique is designed. It supports beam-steering capability of 58 degree at 28 GHz. The antenn…
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…
Impact of Beam Misalignment on Hybrid Beamforming NOMA for mmWave Communications
Mojtaba Ahmadi Almasi, Mojtaba Vaezi, Hani Mehrpouyan
This paper studies hybrid beamforming (HB)-based non-orthogonal multiple access (NOMA) in multiuser millimeter wave (mmWave) communications. HB offers power-efficient and low-compl…
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…
Joint Power Allocation in Interference-Limited Networks via Distributed Coordinated Learning
Roohollah Amiri, Hani Mehrpouyan, David Matolak +1
The deployment of ultra-dense networks is one of the main methods to meet the 5G data rate requirements. However, high density of independent small base stations (SBSs) will increa…
Self-Organizing mmWave Networks : A Power Allocation Scheme Based on Machine Learning
Roohollah Amiri, Hani Mehrpouyan
Millimeter-wave (mmWave) communication is anticipated to provide significant throughout gains in urban scenarios. To this end, network densification is a necessity to meet the high…
Non-Orthogonal Multiple Access Based on Hybrid Beamforming for mmWave Systems
Mojtaba Ahmadi Almasi, Hani Mehrpouyan
This paper aims to study the utilization of non-orthogonal multiple access (NOMA) in hybrid beamforming (HB) multi-user systems called HB-NOMA to serve a large number of mobile use…
Reconfigurable Antenna Multiple Access for 5G mmWave Systems
Mojtaba Ahmadi Almasi, Hani Mehrpouyan, David Matolak +2
This paper aims to realize a new multiple access technique based on recently proposed millimeter-wave reconfigurable antenna architectures. To this end, first we show that integrat…
A New Reconfigurable Antenna MIMO Architecture for mmWave Communication
Mojtaba Ahmadi Almasi, Hani Mehrpouyan, Vida Vakilian +2
The large spectrum available in the millimeter-Wave (mmWave) band has emerged as a promising solution for meeting the huge capacity requirements of the 5th generation (5G) wireless…
A Machine Learning Approach for Power Allocation in HetNets Considering QoS
Roohollah Amiri, Hani Mehrpouyan, Lex Fridman +3
There is an increase in usage of smaller cells or femtocells to improve performance and coverage of next-generation heterogeneous wireless networks (HetNets). However, the interfer…
Reconfigurable Antennas in mmWave MIMO Systems
Mojtaba Ahmadi Almasi, Hani Mehrpouyan, Vida Vakilian +2
The key obstacle to achieving the full potential of the millimeter wave (mmWave) band has been the poor propagation characteristics of wireless signals in this band. One approach t…
Joint Pilot Allocation and Robust Transmission Design for Ultra-dense User-centric TDD C-RAN with Imperfect CSI
Cunhua Pan, Hani Mehrpouyan, Yuanwei Liu +2
This paper considers the unavailability of complete channel state information (CSI) in ultra-dense cloud radio access networks (C-RANs). The user-centric cluster is adopted to redu…
A Spatial-Spectral Interference Model for Millimeter Wave 5G Applications
Solmaz Niknam, Balasubramaniam Natarajan, Hani Mehrpouyan
The potential of the millimeter wave (mmWave) band in meeting the ever growing demand for high data rate and capacity in emerging fifth generation (5G) wireless networks is well-es…
A Multiband OFDMA Heterogeneous Network for Millimeter Wave 5G Wireless Applications
Solmaz Niknam, Ali A. Nasir, Hani Mehrpouyan +1
Emerging fifth generation (5G) wireless networks require massive bandwidth in higher frequency bands, extreme network densities, and flexibility of supporting multiple wireless tec…
Beamforming for Simultaneous Wireless Information and Power Transfer in Two-Way Relay Channels
Wei Wang, Rui Wang, Hani Mehrpouyan
This paper studies simultaneous wireless information and power transfer (SWIPT) systems in two-way relaying (TWR) channels. Here, two source nodes receive information and energy si…
Joint Data Detection and Phase Noise Mitigation for Light Field Video Transmission in MIMO-OFDM Systems
Omar H. Salim, Wei Xiang, Ali A. Nasi +2
Previous studies in the literature for video transmission over wireless communication systems focused on combating the effects of additive channel noise and fading channels without…