Results 81 to 90 of about 10,927 (199)
Performance Enhancement of Cell Edge Users in NOMA Based Systems Using Fractional Frequency Reuse
Journal of Sensors, Volume 2026, Issue 1, 2026.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
Optimizing The Spatial Content Caching Distribution for Device-to-Device Communications
, 2016 We study the optimal geographic content placement problem for device-to-device (D2D) networks in which the content popularity follows the Zipf law. We consider a D2D caching model where the locations of the D2D users (caches) are modeled by a Poisson ...
Al-Shalash, Mazin +2 more
core +1 more source
IRS‐Aided Secure Communication in Multiuser MISO System With Hardware Impairments
Journal of Sensors, Volume 2026, Issue 1, 2026.Unavoidable hardware impairments (HIs) in practical systems can significantly impact system performance. This study explores the security design of an IRS‐assisted multiuser MISO eavesdropping network, focusing on robust secrecy rate optimization considering residual transceiver HIs.
Yun Chen, Yongling Wu, Li Zhu, Deepali
wiley +1 more source
Infrastructure-Less Communication Platform for Off-The-Shelf Android Smartphones
Sensors, 2018 As smartphones and other small portable devices become more sophisticated and popular, opportunities for communication and information sharing among such device users have increased.
Takuma Oide, Toru Abe, Takuo Suganuma
doaj +1 more source
Spectrum Sharing for Device-to-Device Communication in Cellular Networks
, 2014 This paper addresses two fundamental and interrelated issues in device-to-device (D2D) enhanced cellular networks. The first issue is how D2D users should access spectrum, and we consider two choices: overlay (orthogonal spectrum between D2D and cellular
Andrews, Jeffrey G. +2 more
core +1 more source
Secure D2D Communication for 5G IoT Network Based on Lightweight Cryptography
Applied Sciences, 2019 Device-to-device (D2D) communication is a direct means of communication between devices without an intermediate node, and it helps to expand cell coverage and to increase radio frequency reuse in a 5G network.
Byoungjin Seok +5 more
doaj +1 more source
IEEE Access, 2019 Aiming at the problem of device-to-device (D2D) communication mode selection and resource optimization under the joint resource allocation mode in the 5G communication network, a probabilistic integrated resource allocation strategy and a quasi-convex ...
Jun Li +4 more
doaj +1 more source
Ergodic Capacity of D2D Underlay Communication using MC-CDMA [PDF]
Radioengineering, 2019 Device to device (D2D) communication that underlay conventional cellular networks can increase their spectrum utilization. However, since D2D users share the frequency band with cellular users, interference between these two network tiers can become a ...
J. Ahmed, S. Wyne
doaj
Modelling and simulation of device to device based protocol for ultra-reliable low latency communication [PDF]
, 2019 This research project is about the simulation of Device to Device (D2D) communication using MATLAB coding. The focus of system design is for Ultra- Reliable Low Latency Communication (URLLC) system.
Kshash, Abdullah Dawood
core +1 more source
Joint Resource Allocation Scheme for Device-To-Device Communication under a Cellular Network
Cybernetics and Information Technologies, 2015 Device-To-Device (D2D) communication is a new technology that allows the mobile terminals to directly communicate with each other by sharing the resources of the cellular network under the control of a cellular system.
Feng Chenwei, Chen Pingbo, Zhang Zewang
doaj +1 more source