Performance analysis and power control of cell-free massive MIMO systems with hardware impairments

J Zhang, Y Wei, E Björnson, Y Han, S Jin - IEEE Access, 2018 - ieeexplore.ieee.org
As an interesting network architecture for future wireless communication systems, cellfree
(CF) massive multiple-input multiple-output (MIMO) distributes an excess number of access …

Resource allocation for NOMA-based D2D systems coexisting with cellular networks

T Yoon, TH Nguyen, XT Nguyen, D Yoo, B Jang - IEEE Access, 2018 - ieeexplore.ieee.org
This paper describes a nonorthogonal multiple access (NOMA)-based device-to-device
(D2D) communication system underlaying in a cellular network sharing time and frequency …

Performance of assigning pilot sequences in cell free massive MIMO under SINR constraints

TK Nguyen, TH Nguyen - 2018 IEEE Seventh International …, 2018 - ieeexplore.ieee.org
In this paper, we consider the uplink (UL) of Cell-Free (CF) Massive MIMO system where a
large number of service antennas act as access points (APs), serving distributed users. APs …