Results 1 to 10 of about 598 (135)

Transmission Control Considering Different Available Channels for CRDSA/IRSA in Satellite IoT Systems [PDF]

open access: goldIEEE Access, 2023
In satellite Internet-of-Things (IoT) systems using the 920-MHz band Low Power Wide Area, available channels for each terminal are limited to avoid interference with terrestrial networks. Since this limitation depends on the location of the terminal, the
Hiraku Okada   +2 more
exaly   +6 more sources

Adaptive Transmission Control Considering Available Channels Difference Among Terminals in Satellite IoT Systems Using CRDSA/IRSA

open access: goldIEEE Access
The use of Low Power Wide Area (LPWA) networks in the 920-MHz band, which are compatible with terrestrial network devices, is being explored for a satellite Internet-of-Things (IoT) system.
Hiraku Okada   +2 more
exaly   +6 more sources

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

open access: green2011 IEEE Global Telecommunications Conference - GLOBECOM 2011, 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   +11 more sources

CRDSA, CRDSA++ and IRSA: Stability and performance evaluation [PDF]

open access: green2012 6th Advanced Satellite Multimedia Systems Conference (ASMS) and 12th Signal Processing for Space Communications Workshop (SPSC), 2012
6th Advanced Satellite Multimedia Systems Conference (ASMS) and 12th Signal Processing for Space Communications Workshop (SPSC ...
Alessio Meloni, Maurizio Murroni
exaly   +6 more sources

Generalized Encoding CRDSA: Maximizing Throughput in Enhanced Random Access Schemes for Satellite [PDF]

open access: diamondEAI Endorsed Transactions on Mobile Communications and Applications, 2014
This work starts from the analysis of the literature about the Random Access protocols with contention resolution, such as Contention Resolution Diversity Slotted Aloha (CRDSA), and introduces a possible enhancement, named Generalized Encoding Contention
Manlio Bacco
exaly   +6 more sources

Enhancing CRDSA With Transmit Power Diversity for Machine-Type Communication

open access: closedIEEE Transactions on Vehicular Technology, 2018
Contention resolution diversity slotted ALOHA (CRDSA) is a promising solution to meet the challenge of designing efficient random access in future wireless networks. In this paper, we consider CRDSA with transmit power diversity where each packet copy from a device is transmitted at a randomly selected power level.
Sheeraz A Alvi   +2 more
exaly   +5 more sources

An Intelligent Load Control-Based Random Access Scheme for Space-Based Internet of Things [PDF]

open access: yesSensors, 2021
Random access is one of the most competitive multiple access schemes for future space-based Internet of Things (S-IoT) due to its support for massive connections and grant-free transmission, as well as its ease of implementation.
Changjiang Fei   +4 more
doaj   +3 more sources

Energy-Constrained Design of Joint NOMA-Diversity Schemes with Imperfect Interference Cancellation [PDF]

open access: yesSensors, 2021
This study proposes a set of novel random access protocols combining Packet Repetition (PR) schemes, such as Contention Resolution Diversity Slotted Aloha (CRDSA) and Irregular Repetition SA (IRSA), with Non Orthogonal Multiple Access (NOMA). Differently
Fulvio Babich   +3 more
doaj   +2 more sources

Exploring Core Regular Double Stone Algebras, CRDSA, III. Establishing Duality [PDF]

open access: green, 2018
This is the last in a series of three notes on an investigation into core regular double Stone algebras, CRDSA, which are meant to be read in order. This note ends our initial investigation of duality for CRDSA through bi-topological spaces. More succinctly, duality through refinement of a pre-established duality of pairwise Stone spaces and bounded ...
Daniel J. Clouse
  +5 more sources

The Nearly Boolean Nature of Core Regular Double Sone Algebras, CRDSA (Ternary Set Partitions, CRDSA, Embeddings and Dual Equivalences) [PDF]

open access: green, 2018
In "Centre of Core Regular Double Stone Algebra" (CRDSA), many useful results are shown that begin to indicate the nearly Boolean nature of CRDSA which we focus on here. We define the node set lattice through the well known binary operations of ternary set partitions and show the resultant lattice is isomorphic to C3^J where C3 is the 3 element chain ...
Daniel J. Clouse
openaire   +3 more sources

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