Gateway-Assisted Retransmission for Lightweight and Reliable IoT Communications
| Autor: | Meng-Hsun Tsai, Chia-Ying Lin, Cheng Gang Wang, Mong Ting Wu, Hui Ling Chang |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
Engineering
Message Queuing Telemetry Transport for Sensor Networks (MQTT-SN) Retransmission Acknowledgement 02 engineering and technology lcsh:Chemical technology 01 natural sciences Biochemistry retransmission timeout (RTO) Article Analytical Chemistry Constrained Application Protocol Default gateway 0202 electrical engineering electronic engineering information engineering lcsh:TP1-1185 Electrical and Electronic Engineering Instrumentation Retransmission timeout business.industry round-trip time (RTT) 010401 analytical chemistry ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS 020206 networking & telecommunications Atomic and Molecular Physics and Optics 0104 chemical sciences Internet of Things (IoT) Constrained Application Protocol (CoAP) Internet of Things business Wireless sensor network Message queue retransmission mechanism Computer network |
| Zdroj: | Sensors (Basel, Switzerland) Sensors; Volume 16; Issue 10; Pages: 1560 Sensors, Vol 16, Iss 10, p 1560 (2016) |
| ISSN: | 1424-8220 |
| Popis: | Message Queuing Telemetry Transport for Sensor Networks (MQTT-SN) and Constrained Application Protocol (CoAP) are two protocols supporting publish/subscribe models for IoT devices to publish messages to interested subscribers. Retransmission mechanisms are introduced to compensate for the lack of data reliability. If the device does not receive the acknowledgement (ACK) before retransmission timeout (RTO) expires, the device will retransmit data. Setting an appropriate RTO is important because the delay may be large or retransmission may be too frequent when the RTO is inappropriate. We propose a Gateway-assisted CoAP (GaCoAP) to dynamically compute RTO for devices. Simulation models are proposed to investigate the performance of GaCoAP compared with four other methods. The experiment results show that GaCoAP is more suitable for IoT devices. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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