217 citations · 501 across the 21 of their papers we have counts for
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Machine Learning Methods for User Positioning With Uplink RSS in Distributed Massive MIMO
K. N. R. Surya Vara Prasad, Ekram Hossain, Vijay K. Bhargava
We consider a machine learning approach based on Gaussian process regression (GP) to position users in a distributed massive multiple-input multiple-output (MIMO) system with the u…
Low-Dimensionality of Noise-Free RSS and its Application in Distributed Massive MIMO
K. N. R. Surya Vara Prasad, Ekram Hossain, Vijay K. Bhargava
We examine the dimensionality of noise-free uplink received signal strength (RSS) data in a distributed multiuser massive multiple-input multiple-output system. Specifically, we ap…
Energy Efficiency in Massive MIMO-Based 5G Networks: Opportunities and Challenges
K. N. R. Surya Vara Prasad, Ekram Hossain, Vijay K. Bhargava
As we make progress towards the era of fifth generation (5G) communication networks, energy efficiency (EE) becomes an important design criterion because it guarantees sustainable…
Joint Downlink Cell Association and Bandwidth Allocation for Wireless Backhauling in Two-Tier HetNets with Large-Scale Antenna Arrays
Ning Wang, Ekram Hossain, Vijay K. Bhargava
The problem of joint downlink cell association (CA) and wireless backhaul bandwidth allocation (WBBA) in two-tier cellular heterogeneous networks (HetNets) is considered. Large-sca…
Unified and Distributed QoS-Driven Cell Association Algorithms in Heterogeneous Networks
Hamidreza Boostanimehr, Vijay K. Bhargava
This paper addresses the cell association problem in the downlink of a multi-tier heterogeneous network (HetNet), where base stations (BSs) have finite number of resource blocks (R…
Relay Selection for OFDM Wireless Systems under Asymmetric Information: A Contract-Theory Based Approach
Ziaul Hasan, Vijay K. Bhargava
User cooperation although improves performance of wireless systems, it requires incentives for the potential cooperating nodes to spend their energy acting as relays. Moreover, the…