Results 61 to 70 of about 6,711 (206)

Energy‐Aware Protocol Design and Evaluation of the PHY Layer in Satellite IoT

open access: yesInternational Journal of Satellite Communications and Networking, Volume 43, Issue 2, Page 61-76, March/April 2025.
ABSTRACT Direct‐to‐satellite communication for the Internet of Things (IoT) has attracted significant interest from both the scientific community and major telecommunications players. The integration of satellite connectivity in smartphones and IoT devices promises a transformative impact on critical applications such as environmental monitoring, asset
Simon Heine   +2 more
wiley   +1 more source

NEMO: Neighbourhood‐Aware Efficient Management and Optimization in Dense RFID Systems

open access: yesIET Communications, Volume 19, Issue 1, January/December 2025.
This paper presents NEMO (neighbourhood‐aware efficient management and optimization), a fully decentralized neighbourhood‐aware radio frequency identification network framework that dynamically optimizes scheduling, power control, and frequency allocation without requiring global coordination.
Bernard Amoah   +5 more
wiley   +1 more source

A Game Theoretic Approach to Irregular Repetition Slotted Aloha

open access: yesIEEE Access, 2022
Many technological enhancements are being developed worldwide to enable the “Internet of Things” (IoT). IoT networks largely rely on distributed access of billions of devices, but are still lagging in terms of combined reliability and low ...
Iman Hmedoush   +3 more
doaj   +1 more source

On the Stability of Contention Resolution Diversity Slotted ALOHA [PDF]

open access: yes, 2011
In this paper a Time Division Multiple Access (TDMA) based Random Access (RA) channel with Successive Interference Cancellation (SIC) is considered for a finite user population and reliable retransmission mechanism on the basis of Contention Resolution ...
Kissling, Christian
core   +2 more sources

Performance Analysis of Hybrid Scheme of Slotted ALOHA and PD‐NOMA for Massive Machine‐Type Communications

open access: yesIET Networks, Volume 14, Issue 1, January/December 2025.
This paper investigates the characteristics of slotted ALOHA and PD‐NOMA hybrid schemes. The results of this paper reveal that achieving a balance between fairness and performance improvement may be inherently challenging in grant‐free access schemes. ABSTRACT This paper investigates the characteristics of slotted ALOHA and power‐domain nonorthogonal ...
Chen Guanzhou   +6 more
wiley   +1 more source

High-Throughput Random Access via Codes on Graphs [PDF]

open access: yes, 2010
Recently, contention resolution diversity slotted ALOHA (CRDSA) has been introduced as a simple but effective improvement to slotted ALOHA. It relies on MAC burst repetitions and on interference cancellation to increase the normalized throughput of a ...
Chiani, Marco   +2 more
core   +1 more source

Enhance Capacity Region of Multi‐Class IIoT Network by Applying Entanglement Assistance Protocol

open access: yesIET Quantum Communication, Volume 6, Issue 1, January/December 2025.
ABSTRACT In the Industrial Internet of Things (IIoT) context, heterogeneous IIoT nodes need diverse performance requirements, including throughput and quality of service (QoS). These IIoT nodes transmit data over a common shared communication medium. The existing critical challenge arises in efficiently scheduling access to this shared medium among a ...
Doaa Subhi, Laszlo Bacsardi
wiley   +1 more source

Slotted Aloha with multi-AP diversity and APS transmit beamforming

open access: yesEURASIP Journal on Wireless Communications and Networking, 2011
Slotted Aloha is an effective random access protocol and can also be an important element of more advanced media access protocols. This paper investigates slotted Aloha in a radio environment with multiple access points.
Zheng Di, Yao Yu-Dong
doaj  

Finite Length Analysis of Irregular Repetition Slotted ALOHA in the Waterfall Region [PDF]

open access: yes, 2018
A finite length analysis is introduced for irregular repetition slotted ALOHA (IRSA) that enables to accurately estimate its performance in the moderate-to-high packet loss probability regime, i.e., in the so-called waterfall region.
Amat, Alexandre Graell i   +1 more
core   +2 more sources

On the Stability of Random Multiple Access with Stochastic Energy Harvesting [PDF]

open access: yes, 2011
In this paper, we consider the random access of nodes having energy harvesting capability and a battery to store the harvested energy. Each node attempts to transmit the head-of-line packet in the queue if its battery is nonempty.
Anthony Ephremides   +3 more
core   +1 more source

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