Ilju Na

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elsa caetano

Universidade do Porto

Armando Marques-Guedes

UNL - New University of Lisbon

Iolanda Craifaleanu

Technical University Of Civil Engineering, Bucharest

Franco Bontempi

Università degli Studi "La Sapienza" di Roma

Fabián Hoyos Patiño

Universidad Nacional de Colombia (National University of Colombia)

Dionysius Siringoringo

Yokohama National University

Anoop Cherian

Institut National de Recherche en Informatique et Automatique (INRIA)

Viacheslav Kuleshov

Stockholm University

Bogdan Gabrys

University of Technology Sydney

Elvan Ceyhan

Auburn University

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Papers by Ilju Na

Terahertz Antenna-in-Package Design and Measurement for 6G Communications System

IEEE Transactions on Antennas and Propagation, Dec 31, 2022

A D-Band High-Linearity Down-Conversion Mixer for 6G Wireless Communications

IEEE Microwave and Wireless Technology Letters

Baseband Phase Noise Modeling and Analysis for 140GHz THz DFT-s-OFDM System

2022 IEEE Globecom Workshops (GC Wkshps)

End-to-end 6G Terahertz Wireless Platform with Adaptive Transmit and Receive Beamforming

2022 IEEE International Conference on Communications Workshops (ICC Workshops)

Stub-Loaded Sub-Terahertz Wideband Antenna Design and Measurement

2022 16th European Conference on Antennas and Propagation (EuCAP)

Optimal Linear Assignment of a Binary Group Code to Integer Vectors for Source-Channel Coding

2007 IEEE International Symposium on Information Theory, 2007

This paper considers the source-channel coding problem of optimally assigning the codewords of an... more This paper considers the source-channel coding problem of optimally assigning the codewords of an [n, k] binary linear code to the ^-dimensional vectors produced by an IID, uniformly distributed, integer-valued source with alphabet {0,1,..., 2k/n-1} when overall distortion is measured by mean squared error (MSE). It finds explicit formulas for the optimal encoding rule, minimum MSE decoding rule, and resulting distortion. This extends to the vector case the 1974 analysis by Wolf and Redinbo [2] of the optimal assignment of binary linear codes to integers. As in [1], [2], the main tool is abstract Fourier analysis for functions defined on groups. The optimal linear assignment found for vectors can be interpreted as applying the optimal assignment found in [2] to the integer in {0,1,..., 2k-1} formed by multiplexing the binary representations of the nmiddot integers in the vector being encoded in such a way that more significants bits of each integer come before less significant bits of all integers.

End-to-end 140 GHz Wireless Link Demonstration with Fully-Digital Beamformed System

2021 IEEE International Conference on Communications Workshops (ICC Workshops), 2021

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Design Considerations for Terahertz Wireless Communication Systems

2020 IEEE Wireless Communications and Networking Conference Workshops (WCNCW), 2020

Current trends in the evolution of mobile communication systems address the data throughput deman... more Current trends in the evolution of mobile communication systems address the data throughput demand by expanding to higher frequency bands as the usable spectrum in lower frequency bands is almost depleted. As the Third Generation Partnership Project (3GPP) specified the support of mmWave band operations for 5G New Radio (NR), it is expected that the next generation mobile communication system, namely 6G, will consider even higher terahertz (THz) spectrum with wider bandwidth to continue supporting exponential growth of data rates. However, the question remains how to deal with various technical challenges stemming from harsh THz radio propagation characteristics as well as the feasibility of radio frequency (RF) components, which we try to answer in this work. To this end, it is our goal to demonstrate the promise of THz spectrum for the next generation communication systems.

Multi-media system for transferring single program transport stream and method therefor

Method and System for Asynchronous and Isochronous Data Transmission in a High Speed Video Network

Method and apparatus for providing user input back channel in audio/video system

Digital broadcast receiving/recording apparatus and method

Data Transmitting Apparatus, Data Receiving Apparatus, Data Transreceiving System, Data Transmitting Method, Data Receiving Method and Data Transreceiving Method

Frog-in-the-box index codes with maximum likelihood decoding for robust scalar quantization

International Symposium on Information Theory, Jun 27, 2004

The performance of frog-in-the box (FIB) code index assignments is numerically investigated when ... more The performance of frog-in-the box (FIB) code index assignments is numerically investigated when maximum likelihood (ML) decoding is used in place of optimal MMSE decoding. Specifically, the reproduction levels are chosen to be those that would be used for a noiseless channel, and the decoder simply maps the channel output to a level whose index codeword is closest to the channel output.