27 citations · 49 across the 6 of their papers we have counts for
7 papers
Sub-8-Bit Quantization Aware Training for 8-Bit Neural Network Accelerator with On-Device Speech Recognition
Kai Zhen, Hieu Duy Nguyen, Raviteja Chinta +4
We present a novel sub-8-bit quantization-aware training (S8BQAT) scheme for 8-bit neural network accelerators. Our method is inspired from Lloyd-Max compression theory with practi…
Sparsification via Compressed Sensing for Automatic Speech Recognition
Kai Zhen, Hieu Duy Nguyen, Feng-Ju Chang +3
In order to achieve high accuracy for machine learning (ML) applications, it is essential to employ models with a large number of parameters. Certain applications, such as Automati…
Stochastic Geometry-Based Performance Bounds for Non-Fading and Rayleigh Fading Ad Hoc Networks
Hieu Duy Nguyen, Sumei Sun
In this paper, we study the performance of non-fading and Rayleigh fading ad hoc networks. We first characterize the distribution of the signal-to-interference-plus-noise ratio (SI…
Massive MIMO versus Small-Cell Systems: Spectral and Energy Efficiency Comparison
Hieu Duy Nguyen, Sumei Sun
In this paper, we study the downlink performance of two important 5G network architectures, i.e. massive multiple-input multiple-output (M-MIMO) and small-cell densification. We pr…
Improper Signaling for Symbol Error Rate Minimization in K-User Interference Channel
Hieu Duy Nguyen, Rui Zhang, Sumei Sun
The rate maximization for the -user interference channels (ICs) has been investigated extensively in the literature. However, the dual problem of minimizing the error probabilit…
Effect of Receive Spatial Diversity on the Degrees of Freedom Region in Multi-Cell Random Beamforming
Hieu Duy Nguyen, Rui Zhang, Hon Tat Hui
The random beamforming (RBF) scheme, jointly applied with multi-user diversity based scheduling, is able to achieve virtually interference-free downlink transmissions with only par…
Multi-Cell Random Beamforming: Achievable Rate and Degrees of Freedom Region
Hieu Duy Nguyen, Rui Zhang, Hon Tat Hui
Random beamforming (RBF) is a practically favourable transmission scheme for multiuser multi-antenna downlink systems since it requires only partial channel state information (CSI)…