107 citations · 731 across the 41 of their papers we have counts for
12 papers · 1 filter
Optimization of Rate-Splitting Multiple Access with Integrated Sensing and Backscatter Communication
Diluka Galappaththige, Shayan Zargari, Chintha Tellambura +1
An integrated sensing and backscatter communication (ISABC) system is introduced herein. This system features a full-duplex (FD) base station (BS) that seamlessly merges sensing wi…
Sensing and Backscatter Communication Integration: Realizing Efficiency in Wireless Systems for IoT
Shayan Zargari, Diluka Galappaththige, Chintha Tellambura
In an era driven by the Internet of Things (IoT) and rapid wireless communication advances, the synergy between sensing and backscatter communication (BackCom) has emerged as a fro…
RIS-Assisted Energy Harvesting Gains for Bistatic Backscatter Networks: Performance Analysis and RIS Phase Optimization
Diluka Galappaththige, Fatemeh Rezaei, Chintha Tellambura +1
Inexpensive tags powered by energy harvesting (EH) can realize green (energy-efficient) Internet of Things (IoT) networks. However, tags are vulnerable to energy insecurities, resu…
Adversarial Score-Based Generative Models for MMSE-achieving AmBC Channel Estimation
Fatemeh Rezaei, S. Mojtaba Marvasti-Zadeh, Chintha Tellambura +1
This letter presents a pioneering method that employs deep learning within a probabilistic framework for the joint estimation of both direct and cascaded channels in an ambient bac…
Time-Spread Pilot-Based Channel Estimation for Backscatter Networks
Fatemeh Rezaei, Diluka Galappaththige, Chintha Tellambura +1
Current backscatter channel estimators employ an inefficient silent pilot transmission protocol, where tags alternate between silent and active states. To enhance performance, we p…
NOMA-Assisted Symbiotic Backscatter: Novel Beamforming Designs Under Imperfect SIC
Fatemeh Rezaei, Diluka Galappaththige, Chintha Tellambura +1
Optimal beamforming designs under imperfect successive interference cancellation (SIC) decoding for a symbiotic network of non-orthogonal multiple access (NOMA) primary users and a…
PAPR Reduction Method Based on Parametric Minimum Cross Entropy for OFDM Signals
Yajun Wang, Wen Chen, Chintha Tellambura
The partial transmit sequence (PTS) technique has received much attention in reducing the high peak to average power ratio (PAPR) of orthogonal frequency division multiplexing (OFD…
Genetic Algorithm Based Nearly Optimal Peak Reduction Tone Set Selection for Adaptive Amplitude Clipping PAPR Reduction
Yajun Wang, Wen Chen, Chintha Tellambura
In tone reservation (TR) based OFDM systems, the peak to average power ratio (PAPR) reduction performance mainly depends on the selection of the peak reduction tone (PRT) set and t…
A PAPR Reduction Method Based on Artificial Bee Colony Algorithm for OFDM Signals
Yajun Wang, Wen Chen, Chintha Tellambura
One of the major drawbacks of orthogonal frequency division multiplexing (OFDM) signals is the high peak to average power ratio (PAPR) of the transmitted signal. Many PAPR reductio…
Full-Duplex GFDM Radio Transceivers in the Presence of Phase Noise, CFO and IQ Imbalance
Amirhossein Mohammadian, Chintha Tellambura
This paper addresses the performance of a full-duplex (FD) generalized frequency division multiplexing (GFDM) transceiver in the presence of radio frequency (RF) impairments includ…
Outage Analysis of MIMO-MRC in Correlated Rician Fading
Prathapasinghe Dharmawansa, Kumara Kahatapitiya, Saman Atapattu +1
This paper addresses one of the classical problems in random matrix theory-- finding the distribution of the maximum eigenvalue of the correlated Wishart unitary ensemble. In parti…
Analysis and Rate Optimization of GFDM-based Cognitive Radios
A. Mohammadian, M. Baghani, C. Tellambura
Generalized frequency division multiplexing (GFDM) is suitable for cognitive radio (CR) networks due to its low out-of-band (OOB) emission and high spectral efficiency. In this pap…