Results 21 to 30 of about 1,499 (179)
Sensors, 2021 In this paper, we propose a novel MAC protocol, called DG-LoRa, for improving scalability in low power wide area networks. DG-LoRa is backward compatible with legacy LoRaWAN and adds new features, such as group acknowledgment transmissions in the time ...
Junhee Lee +3 more
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On the performance of a retransmission-based synchronizer
Theoretical Computer Science, 2011 Designing algorithms for distributed systems that provide a round abstraction is often simpler than designing for those that do not provide such an abstraction. Further, distributed systems need to tolerate various kinds of failures. The concept of a synchronizer deals with both: It constructs rounds and allows masking of transmission failures.
Nowak, Thomas +2 more
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Diversity Techniques for Single-Carrier Packet Retransmissions over Frequency-Selective Channels
EURASIP Journal on Wireless Communications and Networking, 2009 In data packet communication systems over multipath frequency-selective channels, hybrid automatic repeat request (HARQ) protocols are usually used in order to ensure data reliability. For single-carrier packet transmission in slow fading environment, an
Inbar Fijalkow +2 more
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Modeling Performance of CSMA/CA with Retransmissions in Wireless Personal Area Networks [PDF]
International Journal of Networked and Distributed Computing (IJNDC), 2013 Despite the widespread uses in military, smart building, habitat monitoring, Wireless sensor networks (WSNs) just begun showing their superiority in the medical and healthcare domain.
Zhongwei Zhang
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ARQ-Aware Scheduling and Link Adaptation for Video Transmission over Mobile Broadband Networks
Journal of Computer Networks and Communications, 2012 This paper studies the effect of ARQ retransmissions on packet error rate, delay, and jitter at the application layer for a real-time video transmission at 1.03 Mbps over a mobile broadband network.
Victoria Sgardoni +2 more
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Improving Congestion Control of TCP for Constrained IoT Networks
Sensors, 2020 For smooth integration with middleboxes on the Internet, TCP (Transmission Control Protocol) is favorably considered as a transport-layer protocol for IoT (Internet of Things) networks.
Chansook Lim
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Hybrid ARQ Scheme with Autonomous Retransmission for Multicasting in Wireless Sensor Networks
Sensors, 2017 A new hybrid automatic repeat request (HARQ) scheme for multicast service for wireless sensor networks is proposed in this study. In the proposed algorithm, the HARQ operation is combined with an autonomous retransmission method that ensure a data packet
Young-Ho Jung, Jihoon Choi
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A Novel Energy-Efficient MAC Aware Data Aggregation Routing in Wireless Sensor Networks #
Sensors, 2009 Embedding data-aggregation capabilities into sensor nodes of wireless networks could save energy by reducing redundant data flow transmissions. Existing research describes the construction of data aggregation trees to maximize data aggregation times in ...
Shu-Ping Lin +2 more
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IEEE Access, 2019 To support the vehicular communication services that require low end-to-end transfer latency, the long-term evolution (LTE) specification recently defined a new channel sidelink, which enables direct data transfer among vehicle user equipments (UEs ...
Juyeop Kim, Ohyun Jo, Sang Won Choi
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Estimating the probability of messages delivery in an IoT system
Вестник Дагестанского государственного технического университета: Технические наукиObjective. The aim of the study is to develop a model for estimating the probability of message delivery in a medical Internet of Things (IoMT) system and to study the dependence of this value on the number of retransmissions used to compensate for ...
K. A. Polshchykov, T. N. Mahdi
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