795 citations · 832 across the 9 of their papers we have counts for
9 papers
Deep Reinforcement Learning for Fresh Data Collection in UAV-assisted IoT Networks
Mengjie Yi, Xijun Wang, Juan Liu +2
Due to the flexibility and low operational cost, dispatching unmanned aerial vehicles (UAVs) to collect information from distributed sensors is expected to be a promising solution…
Cubic Metric Reduction for Repetitive CAZAC Sequences in frequency domain
Yajun Zhao, Juan Liu, Saijin Xie
In NR-based Access to Unlicensed Spectrum (NR-U) of 5G system, to satisfy the rules of Occupied Channel Bandwidth (OCB) of unlicensed spectrum, the channels of PRACH and PUCCH have…
Joint Queue-Aware and Channel-Aware Delay Optimal Scheduling of Arbitrarily Bursty Traffic over Multi-State Time-Varying Channels
Meng Wang, Juan Liu, Wei Chen +1
This paper is motivated by the observation that the average queueing delay can be decreased by sacrificing power efficiency in wireless communications. In this sense, we naturally…
Age-Optimal Trajectory Planning for UAV-Assisted Data Collection
Juan Liu, Xijun Wang, Bo Bai +1
Unmanned aerial vehicle (UAV)-aided data collection is a new and promising application in many practical scenarios. In this work, we study the age-optimal trajectory planning probl…
Cache Placement in Fog-RANs: From Centralized to Distributed Algorithms
Juan Liu, Bo Bai, Jun Zhang +1
To deal with the rapid growth of high-speed and/or ultra-low latency data traffic for massive mobile users, fog radio access networks (Fog-RANs) have emerged as a promising archite…
Delay Optimal Scheduling of Arbitrarily Bursty Traffic over Multi-State Time-Varying Channels
Meng Wang, Juan Liu, Wei Chen
In this paper, we study joint queue-aware and channel-aware scheduling of arbitrarily bursty traffic over multi-state time-varying channels, where the bursty packet arrival in the…
Delay-Optimal Computation Task Scheduling for Mobile-Edge Computing Systems
Juan Liu, Yuyi Mao, Jun Zhang +1
Mobile-edge computing (MEC) emerges as a promising paradigm to improve the quality of computation experience for mobile devices. Nevertheless, the design of computation task schedu…
Joint Channel and Queue Aware Scheduling for Wireless Links with Multiple Fading States
Juan Liu, Wei Chen, Khaled B. Letaief
In this work, we address the delay optimal scheduling problem for wireless transmission with fixed modulation over multi-state fading channels. We propose a stochastic scheduling p…
Delay Optimal Scheduling for Energy Harvesting Based Communications
Juan Liu, Huaiyu Dai, Wei Chen
Green communication attracts increasing research interest recently. Equipped with a rechargeable battery, a source node can harvest energy from ambient environments and rely on thi…