30 citations · 154 across the 34 of their papers we have counts for
10 papers · 1 filter
Efficient Beam Alignment in Millimeter Wave Systems Using Contextual Bandits
Morteza Hashemi, Ashutosh Sabharwal, C. Emre Koksal +1
In this paper, we investigate the problem of beam alignment in millimeter wave (mmWave) systems, and design an optimal algorithm to reduce the overhead. Specifically, due to direct…
A Change-Detection based Framework for Piecewise-stationary Multi-Armed Bandit Problem
Fang Liu, Joohyun Lee, Ness Shroff
The multi-armed bandit problem has been extensively studied under the stationary assumption. However in reality, this assumption often does not hold because the distributions of re…
Information Directed Sampling for Stochastic Bandits with Graph Feedback
Fang Liu, Swapna Buccapatnam, Ness Shroff
We consider stochastic multi-armed bandit problems with graph feedback, where the decision maker is allowed to observe the neighboring actions of the chosen action. We allow the gr…
Designing Low-Complexity Heavy-Traffic Delay-Optimal Load Balancing Schemes: Theory to Algorithms
Xingyu Zhou, Fei Wu, Jian Tan +2
We establish a unified analytical framework for load balancing systems, which allows us to construct a general class of policies that are both throughput optimal and heavy-traf…
Energy-Efficient Power and Bandwidth Allocation in an Integrated Sub-6 GHz -- Millimeter Wave System
Morteza Hashemi, C. Emre Koksal, Ness B. Shroff
In mobile millimeter wave (mmWave) systems, energy is a scarce resource due to the large losses in the channel and high energy usage by analog-to-digital converters (ADC), which sc…
On Resource Pooling and Separation for LRU Caching
Jian Tan, Guocong Quan, Kaiyi Ji +1
Caching systems using the Least Recently Used (LRU) principle have now become ubiquitous. A fundamental question for these systems is whether the cache space should be pooled toget…