62 citations · 147 across the 25 of their papers we have counts for
10 papers · 1 filter
Max-Min Fairness for IRS-Assisted Secure Two-Way Communications
Harindu Jayarathne, Tharindu Wickremasinghe, Kasun T. Hemachandra +2
This paper investigates an intelligent reflective surface (IRS) assisted secure multi-user two-way communication system. The aim of this paper is to enhance the physical layer secu…
Distributed CSMA/CA MAC Protocol for RIS-Assisted Networks
Zhou Zhang, Saman Atapattu, Yizhu Wang +1
This paper focuses on achieving optimal multi-user channel access in distributed networks using a reconfigurable intelligent surface (RIS). The network includes wireless channels w…
Relay Assisted Underlay Cognitive Radio Networks with Multiple Users
Lanwei Zhang, Rajitha Senanayake, Saman Atapattu +1
In this letter, we consider an underlay cognitive radio network assisted by dual-hop decode-and-forward (DF) relaying. For a general multi-user network, we adopt a max-min fairness…
Optimum Reconfigurable Intelligent Surface Selection for Wireless Networks
Yuting Fang, Saman Atapattu, Hazer Inaltekin +1
The reconfigurable intelligent surface (RIS) is a promising technology that is anticipated to enable high spectrum and energy efficiencies in future wireless communication networks…
Joint Task Offloading and Resource Allocation for IoT Edge Computing with Sequential Task Dependency
Xuming An, Rongfei Fan, Han Hu +3
Incorporating mobile edge computing (MEC) in Internet of Things (IoT) enables resource-limited IoT devices to offload their computation tasks to a nearby edge server. In this paper…
Performance Analysis of a Two-Tile Reconfigurable Intelligent Surface Assisted MIMO System
Prathapasinghe Dharmawansa, Saman Atapattu, Marco Di Renzo
We consider a two--tile reconfigurable intelligent surface (RIS) assisted wireless network with a two-antenna transmitter and receiver over Rayleigh fading. We show that the averag…
Eigenvalue Based Detection of a Signal in Colored Noise: Finite and Asymptotic Analyses
Lahiru D. Chamain, Prathapasinghe Dharmawansa, Saman Atapattu +1
Signal detection in colored noise with an unknown covariance matrix has a myriad of applications in diverse scientific/engineering fields. The test statistic is the largest general…
Detection of a Signal in Colored Noise: A Random Matrix Theory Based Analysis
Lahiru D. Chamain, Prathapasinghe Dharmawansa, Saman Atapattu +1
This paper investigates the classical statistical signal processing problem of detecting a signal in the presence of colored noise with an unknown covariance matrix. In particular,…
Outage Analysis of Ambient Backscatter Communication Systems
Wenjing Zhao, Gongpu Wang, Saman Atapattu +1
This paper addresses the problem of outage characterization of an ambient backscatter communication system with a pair of passive tag and reader. In particular, an exact expression…
Relay Selection and Performance Analysis in Multiple-User Networks
Saman Atapattu, Yindi Jing, Hai Jiang +1
This paper investigates the relay selection (RS) problem in networks with multiple users and multiple common amplify-and-forward (AF) relays. Considering the overall quality-of-ser…