27 citations · 60 across the 24 of their papers we have counts for
24 papers
Optimal Constant-Weight and Mixed-Weight Conflict-Avoiding Codes
Yuan-Hsun Lo, Tsai-Lien Wong, Kangkang Xu +1
A conflict-avoiding code (CAC) is a deterministic transmission scheme for asynchronous multiple access without feedback. When the number of simultaneously active users is less than…
Deadline-Constrained Opportunistic Spectrum Access With Spectrum Handoff
Zhaolong Xue, Aoyu Gong, Yuan-Hsun Lo +2
This paper considers designing an optimal policy for deadline-constrained access in cognitive radio networks, where a secondary user needs to complete a packet transmission over th…
Reinforcement Learning for Improved Random Access in Delay-Constrained Heterogeneous Wireless Networks
Lei Deng, Danzhou Wu, Zilong Liu +2
In this paper, we for the first time investigate the random access problem for a delay-constrained heterogeneous wireless network. We begin with a simple two-device problem where t…
Dynamic Control for Random Access in Deadline-Constrained Broadcasting
Aoyu Gong, Lei Deng, Fang Liu +1
This paper considers random access in deadline-constrained broadcasting with frame-synchronized traffic. To enhance the maximum achievable timely delivery ratio (TDR), we define a…
Reinforcement Learning Random Access for Delay-Constrained Heterogeneous Wireless Networks: A Two-User Case
Danzhou Wu, Lei Deng, Zilong Liu +2
In this paper, we investigate the random access problem for a delay-constrained heterogeneous wireless network. As a first attempt to study this new problem, we consider a network…
Impact of Low-Resolution ADC on DOA Estimation Performance for Massive MIMO Receive Array
Baihua Shi, Nuo Chen, Xicheng Zhu +4
In this paper, we present a new scenario of direction of arrival (DOA) estimation using massive multiple-input multiple-output (MIMO) receive array with low-resolution analog-to-di…
Schedule Sequence Design for Broadcast in Multi-channel Ad Hoc Networks
Fang Liu, Kenneth W. Shum, Yijin Zhang +1
We consider a single-hop ad hoc network in which each node aims to broadcast packets to its neighboring nodes by using multiple slotted, TDD collision channels. There is no coopera…
Multichannel Conflict-Avoiding Codes of Weights Three and Four
Yuan-Hsun Lo, Kenneth W. Shum, Wing Shing Wong +1
Conflict-avoiding codes (CACs) were introduced by Levenshtein as a single-channel transmission scheme for a multiple-access collision channel without feedback. When the number of s…
Delay-Constrained Topology-Transparent Distributed Scheduling for MANETs
Lei Deng, Fang Liu, Yijin Zhang +1
Transparent topology is common in many mobile ad hoc networks (MANETs) such as vehicle ad hoc networks (VANETs), unmanned aerial vehicle (UAV) ad hoc networks, and wireless sensor…
Age-of-Information-based Scheduling in Multiuser Uplinks with Stochastic Arrivals: A POMDP Approach
Aoyu Gong, Tong Zhang, He Chen +1
In this paper, we consider a multiuser uplink status update system, where a monitor aims to timely collect randomly generated status updates from multiple end nodes through a share…
Dynamic Virtual Resource Allocation for 5G and Beyond Network Slicing
Fei Song, Jun Li, Chuan Ma +3
The fifth generation and beyond wireless communication will support vastly heterogeneous services and use demands such as massive connection, low latency and high transmission rate…
Secure Hybrid Digital and Analog Precoder for mmWave Systems with low-resolution DACs and finite-quantized phase shifters
Ling Xu, Feng Shu, Guiyang Xia +3
Millimeter wave (mmWave) communication has been regarded as one of the most promising technologies for the future generation wireless networks because of its advantages of providin…
The Undirected Optical Indices of Trees
Yuan-Hsun Lo, Hung-Lin Fu, Yijin Zhang +1
For a connected graph , an instance is a set of pairs of vertices and a corresponding routing is a set of paths specified for all vertex-pairs in . Let $\mathfrak{R}_…
A Robust Secure Hybrid Analog and Digital Receive Beamforming Scheme for Efficient Interference Reduction
Linlin Sun, Yaolu Qin, Feng Shu +6
Medium-scale or large-scale receive antenna array with digital beamforming can be employed at receiver to make a significant interference reduction, but leads to expensive cost and…
Low-Complexity and High-Resolution DOA Estimation for Hybrid Analog and Digital Massive MIMO Receive Array
Feng Shu, Yaolu Qin, Tingting Liu +4
A large-scale fully-digital receive antenna array can provide very high-resolution direction of arrival (DOA) estimation, but resulting in a significantly high RF-chain circuit cos…
Optimal Slotted ALOHA under Delivery Deadline Constraint for Multiple-Packet Reception
Yijin Zhang, Yuan-Hsun Lo, Feng Shu +1
This paper considers the slotted ALOHA protocol in a communication channel shared by N users. It is assumed that the channel has the multiple-packet reception (MPR) capability that…
The Undirected Optical Indices of Complete -ary Trees
Yuan-Hsun Lo, Hung-Lin Fu, Yijin Zhang +1
The routing and wavelength assignment problem arises from the investigation of optimal wavelength allocation in an optical network that employs Wavelength Division Multiplexing (WD…
Artificial-Noise-Aided Secure Transmission with Directional Modulation based on Random Frequency Diverse Arrays
Jinsong Hu, Shihao Yan, Feng Shu +3
In this paper, we propose a novel directional modulation (DM) scheme based on random frequency diverse arrays with artificial noise (RFDA-DM-AN) to enhance physical layer security…
New CRT sequence sets for a collision channel without feedback
Yijin Zhang, Yuan-Hsun Lo, Kenneth W. Shum +1
Protocol sequences are binary and periodic sequences used for deterministic multiple access in a collision channel without feedback. In this paper, we focus on user-irrepressible (…
Achieving Zero-Error Capacity 1 for a Collision Channel Without Feedback
Yijin Zhang, Yi Chen, Yuan-Hsun Lo +1
The collision channel without feedback (CCw/oFB) model introduced by Massey and Mathys, depicts a scenario in which M users share a thermal noise-free communication channel with ra…
Channel Hopping Sequences for Maximizing Rendezvous Diversity in Cognitive Radio Networks
Yijin Zhang, Yuan-Hsun Lo, Wing Shing Wong
In cognitive radio networks (CRNs), establishing a communication link between a pair of secondary users (SUs) requires them to rendezvous on a common channel which is not occupied…
The Global Packing Number for an Optical Network
Yuan-Hsun Lo, Yijin Zhang, Wing Shing Wong +1
The global packing number problem arises from the investigation of optimal wavelength allocation in an optical network that employs Wavelength Division Multiplexing (WDM). Consider…
Optimal strongly conflict-avoiding codes of even length and weight three
Yijin Zhang, Yuan-Hsun Lo, Wing Shing Wong
Strongly conflict-avoiding codes (SCACs) are employed in a slot-asynchronous multiple-access collision channel without feedback to guarantee that each active user can send at least…
Protocol Sequences for Multiple-Packet Reception
Yijin Zhang, Yuan-Hsun Lo, Feng Shu +1
Consider a time slotted communication channel shared by active users and a single receiver. It is assumed that the receiver has the ability of the multiple-packet reception (MP…