Results 111 to 120 of about 598 (135)
MILCOM 2015 - 2015 IEEE Military Communications Conference, 2015 In the satellite networks (SATNETs), the random access (RA) schemes are studied to transmit the bursty traffic because the dedicated access (DA) schemes are inefficient to transmit bursty traffic due to overhead caused by control message. The slotted ALOHA (SA), used in the SATNETs, has low throughput owing to the collision between packets.
Jaesung Lim
exaly +4 more sources
Generalized Encoding CRDSA: Maximizing Throughput in Enhanced Random Access Schemes for Satellite
Lecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering, 2013 This work starts from the analysis of the literature about the Random Access protocols with contention resolution as Contention Resolution Diversity Slotted Aloha (CRDSA) and introduces a possible enhancement, named Gener- alized Contention Resolution Diversity Slotted Aloha (GE-CRDSA).
Manlio Bacco +2 more
exaly +5 more sources
NOMA-Based CRDSA with Access Control for Next-Generation IoT Networks
2021 International Conference on Information and Communication Technology Convergence (ICTC), 2021 This paper proposes access control (AC) scheme for non-orthogonal multiple access (NOMA)-based contention resolution diversity slotted ALOHA (CRDSA-NOMA) to improve the performance of CRDSA-NOMA at high traffic loads, referred to as AC-CRDSA-NOMA.
I Nyoman Apraz Ramatryana +1 more
exaly +4 more sources
IEEE Transactions on Wireless Communications, 2007 In this paper a new multiple access scheme dubbed contention resolution diversity slotted ALOHA (CRDSA) is introduced and its performance and implementation are thoroughly analyzed. The scheme combines diversity transmission of data bursts with efficient interference cancellation techniques.
Riccardo De Gaudenzi +1 more
exaly +4 more sources
Joint CRDSA and SCMA for Satellite Internet of Things with Codebook Collisions
2023 IEEE Globecom Workshops (GC Wkshps), 2023 With the rapid development of satellite IoT networks, massive IoT terminals may simultaneously access the satellites, resulting in an increasing demand for user capacity.
Yiqun Wang +4 more
exaly +4 more sources
Toward the Random Multiaccess in SIoT: A Generalized-Deduplication-Based CRDSA Mechanism
IEEE Internet of Things JournalIn the Satellite-Integrated Internet of Things (SIoT), typical multiaccess schemes, i.e., contention resolution diversity slotted ALOHA scheme (CRDSA), face with the obvious challenge of heavily conflicting packets regarding high channel traffic, which ...
Yunlai Xu, Ye Wang, Zhihua Yang
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ICC 2025 - IEEE International Conference on CommunicationsIn this paper, a multi-replicas independent Q-learning algorithm (MRIQL) assisted enhanced-energy-harvesting-based contention resolution diversity slotted ALOHA (EEH-CRDSA) random access scheme with transmission energy diversity is proposed for sixth ...
Jingrui Su +4 more
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An Application of NOMA for CRDSA Performance Improvement in Random Access Satellite Networks
The Journal of Korean Institute of Communications and Information Sciences, 2019 Hyeongkyu Lim, Minwoo Lee, Jaesung Lim
semanticscholar +3 more sources
Adaptive Redundancy CRDSA in UAV-LEO Satellite Covert Communication Networks
IEEE Transactions on CommunicationsWith the rapid development of integrated air-space-ground networks, ensuring secure and covert access for uncrewed aerial vehicles (UAVs) to low Earth orbit (LEO) satellite constellations has become a critical challenge.
Zhe Song +5 more
semanticscholar +3 more sources
Analyzing Average Age of Information in CRDSA Protocol with Access-Banned Policy
Lecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications EngineeringZiru Wang +3 more
exaly +3 more sources