This article presents sub-band full duplex (SBFD) as a duplexing scheme to improve the uplink (UL) throughput in 5G–Advanced networks, an alternative traditional time-division (TDD). SBFD provides opportunities transmit and receive simultaneously on non-overlapping frequency resources. To accomplish this, time slots include both UL downlink (DL) transmission. leads transmission being more expan...

in the present paper, resonant frequencies and modes of a three-atom photonic molecule and a photonic crystal placed within a cavity are numerically calculated. first, governing formulation in transverse electric field mode (te) is obtained using maxwell equations. then, an algorithm based on a finite difference scheme and matrix algebra is presented. the algorithm is then implemented in a comp...

Choi, Junil Ph.D., Purdue University, May 2015. Advanced Wireless Communications Using Large Numbers of Transmit Antennas and Receive Nodes. Major Professor: David J. Love. The concept of deploying a large number of antennas at the base station, often called massive multiple-input multiple-output (MIMO), has drawn considerable interest because of its potential ability to revolutionize current w...

With distributed transceivers and scalable cooperative transmission, cell-free massive multiple-input multiple-output (CF-mMIMO) technology eliminates the “cells” of traditional mobile communications, thereby significantly improving performance wireless networks. CF-mMIMO is considered as a major technical tool for achieving key indicators sixth generation (6G) communication systems. In this pa...