Results 11 to 20 of about 145 (86)
Adaptive Packet-Length Assisted Random Access Scheme in LEO Satellite Network
IEEE Access, 2019 A new adaptive packet-length assisted random access (RA) scheme is proposed to improve the performance of the RA system in LEO satellite network. In the scheme, the lengths of data packets are adaptively selected with different modulation and coding ...
Jialing Bai, Guangliang Ren
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BP Network Control for Resource Allocation and QoS Ensurance in UAV Cloud
Journal of Sensors, Volume 2018, Issue 1, 2018., 2018 Unmanned aerial vehicle (UAV) cloud can greatly enhance the intelligence of unmanned systems by dynamically unloading the compute‐intensive applications to cloud. For the uncertain nature of UAV missions and fast‐changing environment, different UAV applications may have different quality of service (QoS) requirements.
Ang Gao +4 more
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Uplink Nonorthogonal Multiple Access Technologies Toward 5G: A Survey
Wireless Communications and Mobile Computing, Volume 2018, Issue 1, 2018., 2018 Owing to the superior performance in spectral efficiency, connectivity, and flexibility, nonorthogonal multiple access (NOMA) is recognized as the promising access protocol and is now undergoing the standardization process in 5G. Specifically, dozens of NOMA schemes have been proposed and discussed as the candidate multiple access technologies for the ...
Neng Ye +4 more
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Polarized MIMO Slotted ALOHA Random Access Scheme in Satellite Network
IEEE Access, 2017 The massive number of the machine type communication terminals accessing the satellite network brings a new challenge for the random access (RA) system.
Jialing Bai, Guangliang Ren
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On Achieving High-Fidelity Grant-Free Non-Orthogonal Multiple Access
IEEE Open Journal of the Communications SocietyGrant-free access (GFA) has been envisioned to play an active role in massive Machine Type Communication (mMTC) under 5G and Beyond mobile systems, which targets at achieving significant reduction of signaling overhead and access latency in the presence ...
Haoran Mei, Limei Peng, Pin-Han Ho
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IEEE Open Journal of the Communications SocietyThis paper proposes a Multi-Agent Quantum Deep Reinforcement Learning (MA-QDRL) framework to optimize uplink access in Irregular Repetition Slotted ALOHA with Non-Orthogonal Multiple Access (IRSA-NOMA) systems under practical constraints such as finite ...
Won Jae Ryu, Jae-Min Lee, Dong-Seong Kim
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, 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 ...
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Exploring Core Regular Double Stone Algebras, CRDSA, III. Establishing Duality
, 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 ...
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Research on Terminal Access Performance of Beam-Hopping Satellite in IoT Scenario. [PDF]
Sensors (Basel), 2023 Nie Y, Zhang G.
europepmc +1 more source
Exploring Core Regular Double Stone Algebras, CRDSA, II. Moving Towards Duality
, 2018 This is the second 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 begins our 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 ...
openaire +2 more sources