MQTT for IoT-based Applications in Smart Cities

المؤلفون

  • Dr. Samer Jaloudi Al-Quds Open University

الكلمات المفتاحية:

CoAP، HTTP، Internet of Things، JSON، Latency، MQTT، Network Model، Publish-and-Subscribe، One-to-Many، Smart City Applications.

الملخص

This research presents a study on the use of the MQTT communications protocol for the Internet of Things in Smart City applications. A network model is proposed and a typical practical scenario is developed based on MQTT protocol, that cope with the requirements of some Smart City applications, mainly those which use event-based messages. Many market-available embedded electronic systems were employed for this scenario including the inexpensive Wi-Fi platform ESP8266, Arduino, Raspberry, in addition to some sensors and actuators. The network model is chosen based on the TCP/IP model, and the application layer is totally depending on the MQTT protocol that employs JavaScript Object Notation (JSON) to solve the problem of interoperability. To evaluate the protocol for small-to-medium, IoT-based, business applications of Smart Cities, some available free Open Source Software (OSS) of MQTT servers and clients were compared and tested against latency over the cloud. The protocol shows good results for cloud-based, small-to-medium business applications that depend on event-based message-oriented communication paradigms. Since the protocol defines three levels of quality of service (QoS), the simulations and the tests were conducted for QoS type zero (QoS0) to get the best results.

 

DOI

التنزيلات

منشور

2019-03-05

كيفية الاقتباس

Jaloudi, D. S. (2019). MQTT for IoT-based Applications in Smart Cities. المجلة الفلسطينية للتكنولوجيا والعلوم التطبيقية, (2). استرجع في من https://journals.qou.edu/index.php/PJTAS/article/view/1550

الأعمال الأكثر قراءة لنفس المؤلف/المؤلفين

عذراً: هذه الإضافة تتطلب تمكين إضافة إحصائيات/تقارير واحدة على الأقل حتى تتمكن من العمل. إن كانت إضافات الإحصائيات لديك تقدم أكثر من مقياس واحد، فعليك أيضاً اختيار مقياس رئيسي منها عند صفحة إعدادات الموقع و/أو عند صفحات الإدارة الخاصة برئيس تحرير المجلة.