Abstract 5G NR (New Radio) incorporates concepts of novel technologies such as spectrum
sharing, D2D communication, UDN, and massive MIMO. However, providing security and …

Massive multiple-input-multiple-output (MIMO) and millimeter wave have been adopted as
the enabling technologies for the 5G and beyond 5G (B5G) systems. A challenging problem …

Millimeter wave communications show great potentials in many applications, one of which is
the high-speed railway (HSR) communication system. However, a major challenge is the …

In millimeter wave communication systems, channel estimation consumes many resources,
in terms of time, bandwidth, and hardware. However, the good news is that the millimeter …

It is expected that the sixth-generation (6G) cellular networks will provide high-accuracy
positioning services. For the millimeter wave (mmWave) frequency band in 6G, both the …

This letter proposes a structured CANDECOMP/PARAFAC (CP) decomposition-aided
(SCPD) pilot decontamination (PDC) scheme for UAV communication in cell-free massive …

Pilot contamination (PC) is a practical drawback of massive multiple-input multiple-output
(mMIMO) systems. It prevents the exploitation of the inherent spectral-efficiency (SE) of …

With perfect channel state information, a huge signal to noise ratio (SNR) gain can be
obtained in massive multiple input multiple output (MIMO) systems. Therefore, massive …

For underwater localization, mobile anchors are generally preferred because they are easy
to deploy and retrieve, such as the autonomous underwater vehicle (AUV). However, a big …

In this paper, the problem of physical layer security in the uplink of millimeter‐wave massive
multiple‐input multiple‐output (MIMO) networks is studied and a jamming detection and …