3 citations · 7 across the 7 of their papers we have counts for
7 papers
Asynchronous Massive Access and Neighbor Discovery Using OFDMA
Xu Chen, Lina Liu, Dongning Guo +1
The fundamental communication problem in the wireless Internet of Things (IoT) is to discover a massive number of devices and to allow them reliable access to shared channels. Ofte…
Sparse Channel Estimation for Massive MIMO with 1-bit Feedback per Dimension
Zhiyi Zhou, Xu Chen, Dongning Guo +1
In massive multiple-input multiple-output (MIMO) systems, acquisition of the channel state information at the transmitter side (CSIT) is crucial. In this paper, a practical CSIT es…
Capacity of Gaussian Many-Access Channels
Xu Chen, Tsung-Yi Chen, Dongning Guo
Classical multiuser information theory studies the fundamental limits of models with a fixed (often small) number of users as the coding blocklength goes to infinity. This work pro…
A Generalized LDPC Framework for Robust and Sublinear Compressive Sensing
Xu Chen, Dongning Guo
Compressive sensing aims to recover a high-dimensional sparse signal from a relatively small number of measurements. In this paper, a novel design of the measurement matrix is prop…
Many-Broadcast Channels: Definition and Capacity in the Degraded Case
Tsung-Yi Chen, Xu Chen, Dongning Guo
Classical multiuser information theory studies the fundamental limits of models with a fixed (often small) number of users as the coding blocklength goes to infinity. Motivated by…
Many-Access Channels: The Gaussian Case with Random User Activities
Xu Chen, Dongning Guo
Classical multiuser information theory studies the fundamental limits of models with a fixed (often small) number of users as the coding blocklength goes to infinity. This work pro…
The Public Safety Broadband Network: A Novel Architecture with Mobile Base Stations
Xu Chen, Dongning Guo, John Grosspietsch
A nationwide interoperable public safety broadband network is being planned by the United States government. The network will be based on long term evolution (LTE) standards and us…