11 citations · 20 across the 22 of their papers we have counts for
13 papers · 1 filter
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…
Hierarchical Online Convex Optimization
Juncheng Wang, Ben Liang, Min Dong +2
We consider online convex optimization (OCO) over a heterogeneous network with communication delay, where multiple workers together with a master execute a sequence of decisions to…
Resource Allocation for Massive MIMO HetNets with Quantize-Forward Relaying
Ahmad Abu Al Haija, Min Dong, Ben Liang +1
We investigate how massive MIMO impacts the uplink transmission design in a heterogeneous network (HetNet) where multiple users communicate with a macro-cell base station (MCBS) wi…
Online Multi-Cell Coordinated MIMO Wireless Network Virtualization with Imperfect CSI
Juncheng Wang, Ben Liang, Min Dong +1
We consider online coordinated precoding design for downlink wireless network virtualization (WNV) in a multi-cell multiple-input multiple-output (MIMO) network with imperfect chan…
Delay-Tolerant Constrained OCO with Application to Network Resource Allocation
Juncheng Wang, Ben Liang, Min Dong +2
We consider online convex optimization (OCO) with multi-slot feedback delay, where an agent makes a sequence of online decisions to minimize the accumulation of time-varying convex…
Distributed coordinated precoding for MIMO cellular network virtualization
Juncheng Wang, Min Dong, Ben Liang +2
This paper presents a new virtualization method for the downlink of a multi-cell multiple-input multiple-output (MIMO) network, to achieve service isolation among multiple Service…
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…
Periodic Updates for Constrained OCO with Application to Large-Scale Multi-Antenna Systems
Juncheng Wang, Min Dong, Ben Liang +1
In many dynamic systems, decisions on system operation are updated over time, and the decision maker requires an online learning approach to optimize its strategy in response to th…
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…