119 citations · 884 across the 130 of their papers we have counts for
7 papers · 2 filters
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…
The Age of Information in Multihop Networks
Ahmed M. Bedewy, Yin Sun, Ness B. Shroff
Information updates in multihop networks such as Internet of Things (IoT) and intelligent transportation systems have received significant recent attention. In this paper, we minim…
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…
Minimizing the Age of Information through Queues
Ahmed M. Bedewy, Yin Sun, Ness B. Shroff
In this paper, we investigate scheduling policies that minimize the age of information in single-hop queueing systems. We propose a Last-Generated, First-Serve (LGFS) scheduling po…
Age-Optimal Information Updates in Multihop Networks
Ahmed M. Bedewy, Yin Sun, Ness B. Shroff
The problem of reducing the age-of-information has been extensively studied in the single-hop networks. In this paper, we minimize the age-of-information in general multihop networ…
Delay-Optimal Probabilistic Scheduling with Arbitrary Arrival and Adaptive Transmission
Xiang Chen, Wei Chen, Joohyun Lee +1
In this paper, we aim to obtain the optimal delay-power tradeoff and the corresponding optimal scheduling policy for an arbitrary i.i.d. arrival process and adaptive transmissions.…
Dual Sub-6 GHz -- Millimeter Wave Beamforming and Communications to Achieve Low Latency and High Energy Efficiency in 5G Systems
Morteza Hashemi, C. Emre Koksal, Ness B. Shroff
We propose a hybrid architecture that integrates RF (i.e., sub-6 GHz) and millimeter wave (mmWave) technologies for 5G cellular systems. In particular, communications in the mmWave…