Results 61 to 70 of about 27,992 (204)

MAC Protocol Design for Optical Wireless Body‐Area Networks: Latency, Energy Efficiency and Scalability Analysis

IET Networks, Volume 15, Issue 1, January/December 2026.
This work investigates suitable MAC protocols for medical optical wireless body‐area networks (WBANs), focussing on multiple access management. Using realistic channel models, we evaluate the network performance in terms of energy efficiency, quality‐of‐service and scalability for different IEEE protocols, for both intra‐ and extra‐WBAN connectivity in
Christos Giachoudis, Mohammad‐Ali Khalighi, Stanislav Zvanovec, Vasilis K. Papanikolaou, Sotiris A. Tegos, George K. Karagiannidis   +5 more
wiley   +1 more source

Deep Reinforcement Learning Reconfigurable Smart Surface Sensing MAC Protocol for Terahertz Mesh Networks

IET Networks, Volume 15, Issue 1, January/December 2026.
This paper proposes a reconfigurable intelligent surface‐based deep reinforcement learning MAC (RIS‐DRL‐MAC) protocol for terahertz mesh networks. By embedding RIS perception into the MAC decision loop and using a distributed TD3 algorithm, the proposed scheme achieves a cross‐layer optimisation of beam direction, access timing and RIS phase control ...
Wenjian Zhang, Ping Li
wiley   +1 more source

CSMA: A Standalone and ImageJ-Compatible Tool for Enhanced Wound Healing Assay Analysis

IEEE Access
Accurate quantification of wound closure in cell migration assays is crucial yet challenging. Still, existing methods often underperform due to omitting cell detection within the wound area, resulting in biased outcomes.
Tri Thanh Pham, Amina Sagymbayeva, Timur Elebessov, Zhadyra Onzhanova, Ferdinand Molnar   +4 more
doaj   +1 more source

Broadcast Coded Slotted ALOHA: A Finite Frame Length Analysis

, 2016
We propose an uncoordinated medium access control (MAC) protocol, called all-to-all broadcast coded slotted ALOHA (B-CSA) for reliable all-to-all broadcast with strict latency constraints.
Amat, Alexandre Graell i, Brannstrom, Fredrik, Ivanov, Mikhail, Popovski, Petar   +3 more
core   +1 more source

Directed Acyclic Graph‐Based Blockchain Performance Analysis and Its Secure Operation in Opportunistic Networks

IET Software, Volume 2026, Issue 1, 2026.
Directed acyclic graph (DAG)‐based blockchain is a promising paradigm of a blockchain system. During DAG‐based consensus processes, nodes generate blocks in parallel, as well as voting YES on the previous blocks. It makes the DAG‐based blockchain a performance advantage in terms of confirmation delay and transaction throughput.
Ruilin Lai, Gansen Zhao, Zhihao Hou, Qizhi Zhang, Junjie Zhou, Yale He, Tomasz Górski   +6 more
wiley   +1 more source

Analysis of Access Delay and Delay Jitter for the CSMA/CA Mechanism with Inactive Period [PDF]

Radioengineering, 2019
Owing to the distributed features and flexibility, carrier sense multiple access with collision avoidance (CSMA/CA) mechanisms have been widely adopted in wireless networks. Considering energy consumption, we devote to explore an energy efficient carrier
X. F. Chi, M. H. Zhang, L. L. Zhao, L. Qian   +3 more
doaj  

A Hybrid Dynamic Sand Cat Swarm Optimisation (HD‐SCSO) Approach for Resource Allocation in Wireless Sensor Networks

IET Wireless Sensor Systems, Volume 16, Issue 1, January/December 2026.
The hybrid dynamic sand cat swarm optimisation (HD‐SCSO) approach introduces a bioinspired method to enhance energy efficiency, data transmission and resource fairness in WSNs. Through adaptive clustering, intelligent node selection and real‐time adjustments, HD‐SCSO ensures optimised performance, extended network lifetime and seamless IoT integration,
Samer Sindian, Ziad Osman, Abdallah AL‐Sabbagh   +2 more
wiley   +1 more source

Stability conditions for a discrete-time decentralised medium access algorithm

, 2018
We consider a stochastic queueing system modelling the behaviour of a wireless network with nodes employing a discrete-time version of the standard decentralised medium access algorithm.
Shneer, Seva, Stolyar, Alexander
core   +1 more source

Distributed CSMA with pairwise coding [PDF]

2013 Proceedings IEEE INFOCOM, 2013
We consider distributed strategies for joint routing, scheduling, and network coding to maximize throughput in wireless networks. Network coding allows for an increase in network throughput under certain routing conditions. We previously developed a centralized control policy to jointly optimize for routing and scheduling combined with a simple network
Jones, Nathaniel M., Shrader, Brooke E., Modiano, Eytan H   +2 more
openaire   +3 more sources

Mesenteric Venous Malformation Case Report in an Adolescent With Midgut Volvulus

Case Reports in Surgery, Volume 2026, Issue 1, 2026.
Introduction Although the reported incidence of congenital vascular malformations is ~1.5% of the general population, the true incidence of these lesions is difficult to assess due to the heterogeneity of vascular anomalies and the variability in terminology used in reporting. These vascular anomalies can involve capillaries, lymphatics, venous, and/or
Yeu Sanz Wu, Philip J. Katzman, Suzie A. Noronha, Nicole A. Wilson, Tulika Banerjee   +4 more
wiley   +1 more source