Towards a fully connected intelligent digital world, 5G and beyond networks experience a
new era of Internet of intelligence with connected people and things. This new era brings …

Densification of network base stations is indispensable to achieve the stringent Quality of
Service (QoS) requirements of future mobile networks. However, with a dense deployment of …

Imagine a coverage area where each mobile device is communicating with a preferred set of
wireless access points (among many) that are selected based on its needs and cooperate to …

Since the first cellular networks were trialled in the 1970s, we have witnessed an incredible
wireless revolution. From 1G to 4G, the massive traffic growth has been managed by a …

The recently commercialized fifth-generation (5G) wireless networks have achieved many
improvements, including air interface enhancement, spectrum expansion, and network …

The traditional multiple input multiple output (MIMO) systems cannot provide very high
Spectral Efficiency (SE), Energy Efficiency (EE), and link reliability, which are critical to …

An introduction of intelligent interconnectivity for people and things has posed higher
demands and more challenges for sixth-generation (6G) networks, such as high spectral …

Cell-free massive MIMO communications is an emerging network technology for 5G wireless
communications wherein distributed multi-antenna access points (APs) serve many users …

MmWave cell-free systems where multiple base stations (BSs) cooperatively serve user
using the mmWave band signal have gained much attention recently due to its capability to …

In this paper, we study frequency-division duplexing (FDD) based cell-free massive multiple-
input multiple-output (MIMO) systems wherein distributed multi-antenna access points (APs) …