Intelligent reflecting surface (IRS) is an emerging technology to enhance the spectral and energy efficiency of wireless communications cost-effectively. This letter considers a new multi-IRS aided network where cascaded line-of-sight (LoS) link established between base station (BS) remote user by leveraging multi-hop signal reflection selected IRSs. As compared conventional single-/double-hop ...

This letter studies the impact of an intelligent reflecting surface (IRS) on computational performance in a mobile edge computing (MEC) system. Specifically, access point (AP) equipped with server provides MEC services to multiple Internet Thing (IoT) devices that choose offload portion their own tasks AP remaining being locally computed. We deploy IRS enhance system by intelligently adjusting ...

Channel estimation is a practical challenge for intelligent reflecting surface (IRS) aided wireless communication. As the number of IRS elements or IRS-aided users increases, channel training overhead becomes excessively high, which results in long delay and low throughput data transmission. To tackle this challenge, we propose paper new anchor-assisted approach, where two anchor nodes, namely ...

In this paper, we study an intelligent reflecting surface (IRS)-aided wireless secure communication system for physical layer security, where IRS is deployed to adjust its elements guarantee of multiple legitimate users in the presence eavesdroppers. Aiming improve secrecy rate, a design problem jointly optimizing base station (BS)'s beamforming and IRS's formulated given different quality serv...

Intelligent reflecting surface (IRS) is a promising technology for achieving spectrum and energy-efficient wireless networks cost-effectively. Most existing works on IRS have focused exploiting to enhance the performance of communication or information transmission (WIT), while its potential boosting efficiency radio frequency (RF) energy (WET) still remains largely open. Although IRS-aided WET...