Results 71 to 80 of about 13,462 (229)
ABSTRACT Smart cities represent transformative urban ecosystems, leveraging advanced technologies to address challenges posed by rapid urbanisation, energy efficiency demands, and sustainability goals. Despite extensive research, a comprehensive and integrated literature analysis combining AI‐based communication, energy management, cybersecurity, and ...
Maaz Tahir Malik +5 more
wiley +1 more source
Modeling Network-Controlled Device-to-Device Communications in SimuLTE
In Long Term Evolution-Advanced (LTE-A), network-controlled device-to-device (D2D) communications allow User Equipments (UEs) to communicate directly, without involving the Evolved Node-B in data relaying, while the latter still retains control of ...
Giovanni Nardini +2 more
doaj +1 more source
Deep Reinforcement Learning for Intelligent Reflecting Surface-assisted D2D Communications
In this paper, we propose a deep reinforcement learning (DRL) approach for solving the optimisation problem of the network’s sum-rate in device-to-device (D2D) communications supported by an intelligent reflecting surface (IRS).
Khoi Khac Nguyen +2 more
doaj +1 more source
The growing requests for extremely fast indoor wireless connectivity have introduced significant challenges in designing next‐generation communication systems to build Internet of things (IoT)–enabled fully connected smart environments, particularly at higher frequency bands such as millimeter wave (mmWave/MMW).
Ling Yao +4 more
wiley +1 more source
Interference management is one of the most critical issues in underlaying device-to-device (D2D) communication due to the coexistence of D2D pairs and cellular users that operate under the same spectrum.
Thong Huynh +4 more
doaj +1 more source
A Novel Device-to-Device Discovery Scheme for Underlay Cellular Networks
Tremendous growing demand for high data rate services such as video, gaming and social networking in wireless cellular systems, attracted researchers' attention to focus on developing proximity services.
Ghorashi, Seyed Ali +2 more
core +1 more source
With the large‐scale popularity of wireless terminals, user equipment (UE) puts forward higher requirements for wireless network service quality. By using device‐to‐device (D2D) communication technology for cooperative relay transmission, any UE can be used as a potential relay UE (RUE).
Jingming Xie +5 more
wiley +1 more source
Device-to-device (D2D) communications is a promising approach for wireless communications in terms of energy and spectrum efficiency. However, such communications increase interferences in a cellular network.
Romain Chevillon +3 more
doaj +1 more source
The Degrees-of-Freedom of Multi-way Device-to-Device Communications is Limited by 2
A 3-user device-to-device (D2D) communications scenario is studied where each user wants to send and receive a message from each other user. This scenario resembles a 3-way communication channel. The capacity of this channel is unknown in general.
Chaaban, Anas +2 more
core +1 more source
Performance Enhancement of Cell Edge Users in NOMA Based Systems Using Fractional Frequency Reuse
Nonorthogonal multiple access (NOMA) causes significant performance loss for cell‐edge users due to strong intercell interference and fairness constraints under dense deployments. Although fractional frequency reuse (FFR) to improve dependability, especially for cell‐edge users, is widely researched, joint optimization with SINR‐based zoning and NOMA ...
Jesvin Veancy +4 more
wiley +1 more source

