Sparse beamforming and user-centric clustering for downlink cloud radio access network

B Dai, W Yu - IEEE Access, 2014 - ieeexplore.ieee.org
This paper considers a downlink cloud radio access network (C-RAN) in which all the base-
stations (BSs) are connected to a central computing cloud via digital backhaul links with …

Multi-stream transmission for highly frequency selective channels in MIMO-FBMC/OQAM systems

M Caus, AI Pérez-Neira - IEEE transactions on signal …, 2013 - ieeexplore.ieee.org
This paper addresses the joint design of MIMO precoding and decoding matrices for filter
bank multicarrier (FBMC) systems based on OQAM, known as FBMC/OQAM. Existing …

Sum rate maximization in the noisy MIMO interfering broadcast channel with partial CSIT via the expected weighted MSE

F Negro, I Ghauri, DTM Slock - 2012 International symposium …, 2012 - ieeexplore.ieee.org
We consider the maximization of Weighted Sum Rate (WSR) for a Noisy Multiple-Input-
Multiple-Output (MIMO) K cell Interfering Broadcast Channel (IBC) when only partial channel …

Sum-rate maximization methods for wirelessly powered communication networks in interference channels

H Kim, H Lee, L Duan, I Lee - IEEE Transactions on Wireless …, 2018 - ieeexplore.ieee.org
In this paper, we study a wireless powered communication network (WPCN) in a general N-
user interference channel (IFC), where a hybrid access-point (H-AP) in each cell supports its …

Development of a multiple response-based mixed-integer nonlinear optimization model with both controllable and uncontrollable design factors

A Özdemir - Computers & Industrial Engineering, 2022 - Elsevier
Response surface methodology (RSM) is an appropriate tool for modeling and analyzing
existing or new products. In the literature, considerable attention has been paid to develop …

A nonlinear integer programming approach to solving the robust parameter design optimization problem

A Ozdemir, BR Cho - Quality and Reliability Engineering …, 2016 - Wiley Online Library
Robust parameter design is a widely implemented design methodology for continuous
quality improvement by identifying optimal factor level settings with minimum product …

SINR balancing techniques in coordinated multi-cell downlink systems

H Park, SH Park, JS Kim, I Lee - IEEE transactions on wireless …, 2013 - ieeexplore.ieee.org
In this paper, we study coordinated multi-cell downlink systems where multiple base stations
jointly design a transmission strategy by sharing channel state information. Particularly, we …

Antenna selection schemes in bidirectional full-duplex MIMO systems

S Jang, M Ahn, H Lee, I Lee - IEEE Transactions on Vehicular …, 2016 - ieeexplore.ieee.org
In this paper, we investigate antenna selection (AS) methods for bidirectional (BD) full-
duplex multiple-input-multiple-output (MIMO) systems in which antennas at each node can …

An I-optimal experimental design-embedded nonlinear lexicographic goal programming model for optimization of controllable design factors

A Ozdemir - Engineering Optimization, 2021 - Taylor & Francis
Optimal experimental designs are effective offline quality improvement techniques used to
enhance existing products and develop new products for a constrained design region. For …

Robust design modeling and optimization for dealing with a non-convex design space

A Özdemir, M Turkoz - Computers & Industrial Engineering, 2023 - Elsevier
Classic experimental designs effectively generate experimental design points under
standard design spaces such as a circle, a cube, or a sphere. However, for non-convex …