411 citations · 1.2k across the 52 of their papers we have counts for
8 papers · 2 filters
Analysis and Design of Distributed MIMO Networks with a Wireless Fronthaul
Hussein A. Ammar, Raviraj Adve, Shahram Shahbazpanahi +1
We consider the analysis and design of distributed wireless networks wherein remote radio heads (RRHs) coordinate transmissions to serve multiple users on the same resource block (…
Distributed Resource Allocation Optimization for User-Centric Cell-Free MIMO Networks
Hussein A. Ammar, Raviraj Adve, Shahram Shahbazpanahi +2
We develop two distributed downlink resource allocation algorithms for user-centric, cell-free, spatially-distributed, multiple-input multiple-output (MIMO) networks. In such netwo…
RWP+: A New Random Waypoint Model for High-Speed Mobility
Hussein A. Ammar, Raviraj Adve, Shahram Shahbazpanahi +2
In this letter, we emulate real-world statistics for mobility patterns on road systems. We then propose modifications to the assumptions of the random waypoint (RWP) model to bette…
Downlink Resource Allocation in Multiuser Cell-free MIMO Networks with User-centric Clustering
Hussein A. Ammar, Raviraj Adve, Shahram Shahbazpanahi +2
In this paper, we optimize user scheduling, power allocation and beamforming in distributed multiple-input multiple-output (MIMO) networks implementing user-centric clustering. We…
Hybrid Analog and Digital Beamforming Design for Channel Estimation in Correlated Massive MIMO Systems
Javad Mirzaei, Shahram ShahbazPanahi, Foad Sohrabi +1
In this paper, we study the channel estimation problem in correlated massive multiple-input-multiple-output (MIMO) systems with a reduced number of radio-frequency (RF) chains. Imp…
User-centric Cell-free Massive MIMO Networks: A Survey of Opportunities, Challenges and Solutions
Hussein A. Ammar, Raviraj Adve, Shahram Shahbazpanahi +2
Densification of network base stations is indispensable to achieve the stringent Quality of Service (QoS) requirements of future mobile networks. However, with a dense deployment o…
Optimizing RRH Placement Under a Noise-Limited Point-to-Point Wireless Backhaul
Hussein A. Ammar, Raviraj Adve, Shahram Shahbazpanahi +1
In this paper, we study the deployment decisions and location optimization for the remote radio heads (RRHs) in coordinated distributed networks in the presence of a wireless backh…
Resource Allocation and Scheduling in Non-coherent User-centric Cell-free MIMO
Hussein A. Ammar, Raviraj Adve, Shahram Shahbazpanahi +2
We study the problem of user-scheduling and resource allocation in distributed multi-user, multiple-input multiple-output (MIMO) networks implementing user-centric clustering and n…