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Smart city article details
| Title | Mathematical Modeling And Validation Of Retransmission-Based Mutant Mqtt For Improving Quality Of Service In Developing Smart Cities |
|---|---|
| ID_Doc | 36485 |
| Authors | Ali J.; Zafar M.H.; Hewage C.; Hassan R.; Asif R. |
| Year | 2022 |
| Published | Sensors, 22, 24 |
| DOI | http://dx.doi.org/10.3390/s22249751 |
| Abstract | Unreliable networks often use excess bandwidth for data integration in smart cities. For this purpose, Messaging Queuing Telemetry Transport (MQTT) with a certain quality of service (QoS) is employed. Data integrity and data security are frequently compromised for reducing bandwidth usage while designing integrated applications. Thus, for a reliable and secure integrated Internet of Everything (IoE) service, a range of network parameters are conditioned to achieve the required quality of a deliverable service. In this work, a QoS-0-based MQTT is developed in such a manner that the transparent MQTT protocol uses Transmission Control Protocol (TCP)-based connectivity with various rules for the retransmission of contents if the requests are not entertained for a fixed duration. The work explores the ways to improve the overall content delivery probability. The parameters are examined over a transparent gateway-based TCP network after developing a mathematical model for the proposed retransmission-based mutant QoS-0. The probability model is then verified by an actual physical network where the repeated content delivery is explored at VM-based MQTT, local network-based broker and a remote server. The results show that the repeated transmission of contents from the sender improves the content delivery probability over the unreliable MQTT-based Internet of Things (IoT) for developing smart cities' applications. |
| Author Keywords | end-to-end service assurance; IoT; MQTT; QoS; smart cities |
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