While sixth-generation (6G) wireless systems are expected to bring about an explosion of
accessible user information and novel technologies, along with new threats to terrestrial and …

Spectrum scarcity has been a major concern for achieving the desired quality of experience
(QoE) in next-generation (5G/6G and beyond) networks supporting a massive volume of …

Energy-efficient design and secure communications are of crucial importance in wireless
communication networks. However, the energy efficiency achieved by using physical layer …

Physical layer security (PLS) has proven to be a potential solution for enhancing the security
performance of future 5G networks, which promises to fulfill the demands of increasing user …

Cross-modal applications that elaborately integrate audio, video, and haptic streams will
become the mainstream of the eHealth systems. However, existing stream schedulers …

As for the time-division communications system, the pilot spoofing attack (PSA) technique is
maliciously utilized by active eavesdroppers during the uplink training phase, for …

This chapter considers a secure multigroup multicast MISO communication system aided by
an IRS. Specifically, we aim to minimize the transmit power at Alice via jointly optimizing the …

Pilot contamination attack (PCA) in a time division duplex wireless communication system is
considered, where an eavesdropper (Eve) attacks the reverse pilot transmission phase in …

The upcoming fifth generation (5G) cellular network is required to provide seamless access
for a massive number of Internet of Things (IoT) devices over the limited radio spectrum. In …

This paper proposes an intelligent reflecting surface (IRS) backscatter based uplink
coordinated transmission strategy for a radio cellular network, where IRS serves as a …