Articles with "two user" as a keyword



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Throughput Analysis of 2-D OCDMA/Pure ALOHA Networks with Access Control and Two User Classes of Variable Length for Multimedia Traffic

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Published in 2021 at "Optik"

DOI: 10.1016/j.ijleo.2021.166928

Abstract: ABSTRACT In a previous research, the throughput of a 2-D optical code-division multiple-access (OCDMA)/unslotted ALOHA (U-ALOHA)/channel load sensing protocol network using an optical hard limiter and channel code was analyzed. This scheme assumed a fixed… read more here.

Keywords: access; traffic; user; two user ... See more keywords
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A Maximum-Likelihood-Based Two-User Receiver for LoRa Chirp Spread-Spectrum Modulation

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Published in 2022 at "IEEE Internet of Things Journal"

DOI: 10.1109/jiot.2022.3186732

Abstract: Long Range (LoRa) is an emerging low-power wide-area network technology offering long-range wireless connectivity to Internet of Things (IoT) devices. For energy efficiency reasons, LoRa end nodes implement a nonslotted ALOHA multiple access scheme to… read more here.

Keywords: two user; lora; receiver; maximum likelihood ... See more keywords
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Capacity Characterization of UAV-Enabled Two-User Broadcast Channel

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Published in 2018 at "IEEE Journal on Selected Areas in Communications"

DOI: 10.1109/jsac.2018.2864421

Abstract: Unmanned aerial vehicles (UAVs) have recently gained growing popularity in wireless communications owing to their many advantages such as swift and cost-effective deployment, line-of-sight (LoS) aerial-to-ground link, and controllable mobility in three-dimensional (3D) space. Although… read more here.

Keywords: uav enabled; capacity; two user; enabled two ... See more keywords
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Revisiting Two-User S-ALOHA Games

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Published in 2018 at "IEEE Communications Letters"

DOI: 10.1109/lcomm.2018.2826009

Abstract: This letter considers non-cooperative slotted ALOHA (S-ALOHA) games, in which two users contend for the channel by taking one of two actions, i.e., transmit or wait. We obtain an achievable (expected) payoff region of the… read more here.

Keywords: revisiting two; payoff region; two user; user aloha ... See more keywords
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Two-User Network-Coded Cooperation With NOMA and Advanced Successive Interference Cancellation

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Published in 2019 at "IEEE Communications Letters"

DOI: 10.1109/lcomm.2019.2943865

Abstract: In this work, we evaluate the outage probability of a two-user network-coded cooperative (NCC) uplink system subjected to non-orthogonal multiple access (NOMA). We consider that the destination performs a recently proposed advanced successive interference cancellation… read more here.

Keywords: network coded; successive interference; user network; two user ... See more keywords
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Completion Time in Two-User Channels: An Information-Theoretic Perspective

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Published in 2017 at "IEEE Transactions on Information Theory"

DOI: 10.1109/tit.2017.2669329

Abstract: Consider a multi-user channel, where each user has a large but non-replenishable bit pool to transmit. Completion time refers to the number of channel uses spent by each user to complete its transmission. In this… read more here.

Keywords: information; completion; two user; channel ... See more keywords
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Distribution Decomposition and Sum-Capacity Results of Two-User Optical Intensity Multiple Access Channels

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Published in 2022 at "IEEE Transactions on Information Theory"

DOI: 10.1109/tit.2023.3279511

Abstract: This paper investigates the sum-capacity of two-user optical intensity multiple access channels with per-user peak- or/and average-intensity constraints. By leveraging tools from the decomposition of certain maxentropic distributions, we derive several lower bounds on the… read more here.

Keywords: user optical; two user; capacity; sum capacity ... See more keywords
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Limited Rate Feedback for Two-User MISO Gaussian Interference Channel With and Without Secrecy

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Published in 2018 at "IEEE Transactions on Signal Processing"

DOI: 10.1109/tsp.2018.2855641

Abstract: We study a two-user multiple-input single-output Gaussian interference channel with limited rate feedback and transmitter cooperation. Each receiver quantizes the channel state information of the direct and cross channels, and sends the codebook indices back… read more here.

Keywords: two user; feedback; gaussian interference; rate ... See more keywords
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A NOMA Scheme for a Two-User MISO Downlink Channel With Unknown CSIT

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Published in 2018 at "IEEE Transactions on Wireless Communications"

DOI: 10.1109/twc.2018.2864215

Abstract: The notion of non-orthogonal multiple access (NOMA) for 5G essentially relies on the availability of the channel state information at the transmitter (CSIT). Such knowledge is used to judiciously allocate power among users to make… read more here.

Keywords: probability; two user; scheme; noma scheme ... See more keywords
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On the Age of Information in a Two-User Multiple Access Setup

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Published in 2022 at "Entropy"

DOI: 10.3390/e24040542

Abstract: This work considers a two-user multiple access channel in which both users have Age of Information (AoI)-oriented traffic with different characteristics. More specifically, the first user has external traffic and cannot control the generation of… read more here.

Keywords: problem; queue; two user; user multiple ... See more keywords