154 citations · 1.1k across the 40 of their papers we have counts for
40 papers
Sequential Hypothesis Test with Online Usage-Constrained Sensor Selection
Shang Li, Xiaoou Li, Xiaodong Wang +1
This work investigates the sequential hypothesis testing problem with online sensor selection and sensor usage constraints. That is, in a sensor network, the fusion center sequenti…
Adaptive Sampling of RF Fingerprints for Fine-grained Indoor Localization
Xiao-Yang Liu, Shuchin Aeron, Vaneet Aggarwal +2
Indoor localization is a supporting technology for a broadening range of pervasive wireless applications. One promis- ing approach is to locate users with radio frequency fingerpri…
Decentralized Sequential Composite Hypothesis Test Based on One-Bit Communication
Shang Li, Xiaoou Li, Xiaodong Wang +1
This paper considers the sequential composite hypothesis test with multiple sensors. The sensors observe random samples in parallel and communicate with a fusion center, who makes…
Does -minimization outperform -minimization?
Le Zheng, Arian Maleki, Haolei Weng +2
In many application areas we are faced with the following question: Can we recover a sparse vector from its undersampled set of noisy observations $y \in \ma…
Cooperative Change Detection for Online Power Quality Monitoring
Shang Li, Xiaodong Wang
This paper considers the real-time power quality monitoring in power grid systems. The goal is to detect the occurrence of disturbances in the nominal sinusoidal voltage/current si…
Energy Management and Cross Layer Optimization for Wireless Sensor Network Powered by Heterogeneous Energy Sources
Weiqiang Xu, Yushu Zhang, Qingjiang Shi +1
Recently, utilizing renewable energy for wireless system has attracted extensive attention. However, due to the instable energy supply and the limited battery capacity, renewable e…
Sequential Joint Detection and Estimation: Optimum Tests and Applications
Yasin Yilmaz, Shang Li, Xiaodong Wang
We treat the statistical inference problems in which one needs to detect and estimate simultaneously using as small number of samples as possible. Conventional methods treat the de…
Dynamic Optimization For Heterogeneous Powered Wireless Multimedia Sensor Networks With Correlated Sources and Network Coding
Weiqiang Xu, Yushu Zhang, Qingjiang Shi +1
The energy consumption in wireless multimedia sensor networks (WMSN) is much greater than that in traditional wireless sensor networks. Thus, it is a huge challenge to remain the p…
On the Capacity Regions of Two-Way Diamond Channels
Mehdi Ashraphijuo, Vaneet Aggarwal, Xiaodong Wang
In this paper, we study the capacity regions of two-way diamond channels. We show that for a linear deterministic model the capacity of the diamond channel in each direction can be…
Stochastic Optimal Linear Control of Wireless Networked Control Systems with Delays and Packet Losses
Zhuwei Wang, Xiaodong Wang, Lihan Liu
In this paper, the design of the optimal decentralized state-feedback controllers is considered for a wireless sensor and actuator network (WSAN) with stochastic network-induced de…
Multiuser Joint Energy-Bandwidth Allocation with Energy Harvesting - Part II: Multiple Broadcast Channels & Proportional Fairness
Zhe Wang, Vaneet Aggarwal, Xiaodong Wang
In this paper, we consider the energy-bandwidth allocation for a network with multiple broadcast channels, where the transmitters access the network orthogonally on the assigned fr…
Multiuser Joint Energy-Bandwidth Allocation with Energy Harvesting - Part I: Optimum Algorithm & Multiple Point-to-Point Channels
Zhe Wang, Vaneet Aggarwal, Xiaodong Wang
In this paper, we develop optimal energy-bandwidth allocation algorithms in fading channels for multiple energy harvesting transmitters, each may communicate with multiple receiver…
Distributed Energy Efficient Cross-layer Optimization for Multihop MIMO Cognitive Radio Networks with Primary User Rate Protection
Weiqiang Xu, Wenchu Yuan, Qingjiang Shi +2
Due to the unique physical-layer characteristics associated with MIMO and cognitive radio (CR), the network performance is tightly coupled with mechanisms at the physical, link, ne…
Resource Allocation for Power Minimization in the Downlink of THP-based Spatial Multiplexing MIMO-OFDMA Systems
Marco Moretti, Luca Sanguinetti, Xiaodong Wang
In this work, we deal with resource allocation in the downlink of spatial multiplexing MIMO-OFDMA systems. In particular, we concentrate on the problem of jointly optimizing the tr…
On the Symmetric -user Interference Channels with Limited Feedback
Mehdi Ashraphijuo, Vaneet Aggarwal, Xiaodong Wang
In this paper, we develop achievability schemes for symmetric -user interference channels with a rate-limited feedback from each receiver to the corresponding transmitter. We st…
Sequential Joint Spectrum Sensing and Channel Estimation for Dynamic Spectrum Access
Yasin Yilmaz, Ziyu Guo, Xiaodong Wang
Dynamic spectrum access under channel uncertainties is considered. With the goal of maximizing the secondary user (SU) throughput subject to constraints on the primary user (PU) ou…
Power Allocation for Energy Harvesting Transmitter with Causal Information
Zhe Wang, Vaneet Aggarwal, Xiaodong Wang
We consider power allocation for an access-controlled transmitter with energy harvesting capability based on causal observations of the channel fading state. We assume that the sys…
Iterative Dynamic Water-filling for Fading Multiple-Access Channels with Energy Harvesting
Zhe Wang, Vaneet Aggarwal, Xiaodong Wang
In this paper, we develop optimal energy scheduling algorithms for -user fading multiple-access channels with energy harvesting to maximize the channel sum-rate, assuming that t…
Optimal Distributed Control for Networked Control Systems with Delays
Zhuwei Wang, Xiaodong Wang
In networked control systems (NCS), sensing and control signals between the plant and controllers are typically transmitted wirelessly. Thus, the time delay plays an important role…
Massive MIMO Multicasting in Noncooperative Cellular Networks
Zhengzheng Xiang, Meixia Tao, Xiaodong Wang
We study the massive multiple-input multiple-output (MIMO) multicast transmission in cellular networks where each base station (BS) is equipped with a large-scale antenna array and…
On the Capacity and Degrees of Freedom Regions of MIMO Interference Channels with Limited Receiver Cooperation
Mehdi Ashraphijuo, Vaneet Aggarwal, Xiaodong Wang
This paper gives the approximate capacity region of a two-user MIMO interference channel with limited receiver cooperation, where the gap between the inner and outer bounds is in t…
Hybrid Group Decoding for Scalable Video over MIMO-OFDM Downlink Systems
Shuying Li, Chen Gong, Xiaodong Wang
We propose a scalable video broadcasting scheme over MIMO-OFDM systems. The scalable video source layers are channel encoded and modulated into independent signal streams, which ar…
On Finite Block-Length Quantization Distortion
Chen Gong, Xiaodong Wang
We investigate the upper and lower bounds on the quantization distortions for independent and identically distributed sources in the finite block-length regime. Based on the convex…
Sequential Joint Detection and Estimation
Yasin Yilmaz, George V. Moustakides, Xiaodong Wang
We consider the problem of simultaneous detection and estimation under a sequential framework. In particular we are interested in sequential tests that distinguish between the null…