Results 121 to 130 of about 598 (135)

Design of Coded Slotted ALOHA Operated with $q$-Ary Physical-Layer Network Coding

ICC 2023 - IEEE International Conference on Communications, 2023
We study a physical-layer network coding (PNC) enhanced slotted ALOHA (SA) scheme. At the transmitters, practical $q$-ary modulation codes (a practical lattice code) and contention resolution diversity SA (CRDSA) protocol are utilized, where active users
Tao Yang, Wencheng Ren, F. Yu
semanticscholar   +1 more source

Research on Random Access Technology of Satellite Internet of Things

International Conference on Communication, Computing & Security, 2023
The Satellite Internet of Things (IoT) has become an important part of global interconnection, and its wide-area coverage is bound to generate massive access.
Mingming Hui, Shen-You Zhai, Wei Wang
semanticscholar   +1 more source

Per-Replica Power Diversity in Grant-Free Multiple Access: Design and Performance Evaluation

2023 IEEE Globecom Workshops (GC Wkshps), 2023
This work presents the concept of power replica diversity applied to grant-free multiple access, where users access the channel following contention resolution diversity slotted ALOHA protocol (CRDSA).
Estefanía Recayte, Federico Clazzer
semanticscholar   +1 more source

Parallel Decoding of IRSA with Noise

IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, 2022
Due to its simplicity and scalability, the Irregular Repetition Slotted ALOHA (IRSA) system that uses the successive interference cancellation (SIC) technique is a promising solution for uncoordinated multiple access of a massive number of Internet-of ...
Yun-Hsin Chiang, Yi-Jheng Lin, Cheng-Shang Chang, Y. Hong   +3 more
semanticscholar   +1 more source

On the Stability of Contention Resolution Diversity Slotted ALOHA (CRDSA)

, 2011
Christian Kissling
exaly   +1 more source

Random Pattern Multiplexing for Random Access in IoT-Oriented Satellite Networks

IEEE Systems Journal, 2020
In this paper, random pattern multiplexing (RPM) for random access (RA) is proposed to improve the throughput in Internet of Things-oriented satellite networks.
Bo Zhao, Guangliang Ren, Huining Zhang
semanticscholar   +1 more source

Multisatellite Cooperative Random Access Scheme in Low Earth Orbit Satellite Networks

IEEE Systems Journal, 2019
Multisatellite cooperative random access (MSC-RA) scheme is proposed in low earth orbit (LEO) satellite networks. In the scheme, a packet structure based on single carrier interleaved frequency division multiple access (SC-IFDMA) is designed to overcome ...
Bo Zhao, Guangliang Ren, Huining Zhang
semanticscholar   +1 more source

Irregular Repetition Slotted ALOHA With Energy Harvesting Nodes

IEEE Transactions on Wireless Communications, 2019
We propose an irregular repetition slotted ALOHA (IRSA) based uncoordinated random access scheme for energy harvesting (EH) nodes. Specifically, we consider the case in which each user has a battery that is recharged with harvested energy from the ...
Umut Demirhan, T. Duman
semanticscholar   +1 more source

Enhancing Federated Learning in Massive IoT via Contention Resolution Diversity Slotted ALOHA

Workshop Communication Networks and Power Systems
Federated Learning (FL) has emerged as a promising approach for enabling collaborative model training in Internet of Things (IoT) networks while preserving data privacy.
Daniel Dagostim, J. Farhat, Richard Demo Souza   +2 more
semanticscholar   +1 more source

Evaluation and Comparison of Anti-Collision Schemes for Contention Based Uplink Small Data Transmission in IoT Networks

IEEE Internet of Things Magazine
IoT is a promising technology offering a reliable and massive connectivity for low-complexity and low-power devices. Especially for passive IoT network, it is densely deployed and very sensitive to power consumption.
Niu Li, Lu Ting, Yajun Zhao
semanticscholar   +1 more source