Results 61 to 70 of about 104,178 (180)
Blockchain in Communication Networks: A Comprehensive Review
IET Blockchain, Volume 6, Issue 1, January/December 2026.This article provides a comprehensive review of blockchain applications in communication networks, focusing on domains such as IoT, 5G, vehicular systems, and decentralised trust infrastructures. It examines key challenges—including scalability, interoperability, and latency—and outlines future directions such as lightweight consensus protocols and AI ...
Quazi Mamun, Zhenni Pan, Jun Wu
wiley +1 more source
On Security and Throughput for Energy Harvesting Untrusted Relays in IoT Systems Using NOMA
IEEE Access, 2019 In this paper, we analyze the secrecy and throughput of multiple-input single-output (MISO) energy harvesting (EH) Internet of Things (IoT) systems, in which a multi-antenna base station (BS) transmits signals to IoT devices (IoTDs) with the help of ...
Van Nhan Vo +6 more
doaj +1 more source
Decentralised Ledger Solutions for Scalable and Trustworthy Resource Management During Disasters
IET Blockchain, Volume 6, Issue 1, January/December 2026.We propose a decentralized blockchain‐based framework for disaster resource management integrating smart contracts, IoT oracles and role‐based access control to enhance efficiency, transparency and trust. A hybrid public–permissioned architecture enables secure stakeholder coordination, real‐time tracking and automated allocation while addressing ...
Talluri Lakshmi Siva Rama Krishna +2 more
wiley +1 more source
IEEE Access, 2019 Spectrum efficiency, energy efficiency, and physical layer security are three critical issues in designing wireless networks, such as an energy-constrained device-to-device (D2D) communication in secure spectrum sharing femtocell networks. In this paper,
Daqian Zhao, Hui Tian, Ping Zhang
doaj +1 more source
Secrecy Performance of a Multi-NOMA-MIMO System in the UEH Relaying Network Using the PSO Algorithm
IEEE Access, 2021 In this paper, we investigate the secrecy performance of the nonorthogonal multiple access (NOMA) system in an untrusted relaying energy harvesting (UEH) network with the multiple-input multiple-output (MIMO) architecture using the maximum ratio ...
Thi Le Anh, Ic Pyo Hong
doaj +1 more source
A Review of Offline Blockchain Transaction Systems
IET Blockchain, Volume 6, Issue 1, January/December 2026.Blockchain systems currently rely on constant network connectivity, which limits their utility in remote areas, during network outages or cyber attacks. This paper presents the first systematic study on offline blockchain implementations, analyzing their security and privacy challenges.
Srivatsav Chenna, Christian Prehofer
wiley +1 more source
Dual IRS‐Assisted Secure Communication for Untrusted Two‐Way AF Relay Network
IET Communications, Volume 20, Issue 1, January/December 2026.To address the performance loss caused by the difficulty of balancing phase configuration requirements in single‐IRS‐assisted asymmetric bidirectional secure relay communication, this paper proposes a dual‐IRS collaborative optimization framework. Specifically, each user is configured with a dedicated IRS to enable personalized signal reflection, and ...
Yibo Wang, An Li, Lisu Yu, Kaijun Peng
wiley +1 more source
Weak Secrecy in the Multiway Untrusted Relay Channel With Compute-and-Forward [PDF]
IEEE Transactions on Information Forensics and Security, 2015 We investigate the problem of secure communications in a Gaussian multi-way relay channel applying the compute-and-forward scheme using nested lattice codes. All nodes employ half-duplex operation and can exchange confidential messages only via an untrusted relay. The relay is assumed to be honest but curious, i.e., an eavesdropper that conforms to the
Johannes Richter +3 more
openaire +2 more sources
Achieving full diversity in multi-antenna two-way relay networks via symbol-based physical-layer network coding [PDF]
, 2013 This paper considers physical-layer network coding (PNC) with M-ary phase-shift keying (MPSK) modulation in two-way relay channel (TWRC). A low complexity detection technique, termed symbol-based PNC (SPNC), is proposed for the relay.
Lv, Tiejun +4 more
core +1 more source
Secure transmission in an unfriendly environment
ICT Express, 2020 This work investigates and show the performance of destination assisted node in ensuring secure communication in a dual-hop broadcast system. The information transmission occurs between the transmitters which are assumed to be equipped with single ...
Lukman A. Olawoyin +6 more
doaj +1 more source