Document Type

Closed Project

Publication Date

Fall 2017


Tugrul Daim

Course Title


Course Number

ETM 506


Hierarchical Decision Model, Home automation -- Technological innovations, Wireless communication systems -- Evaluation, Internet of things


The concept of smart homes is commonly used to define houses that have appliances, lighting, smart locks, security camera systems, and other smart objects that are communicating with each other and can be controlled remotely by from any location in the world by phone or internet [1]. Smart objects need a protocol, a language, to be able to communicate with one another. There is a wide range of communication protocols that each one has its advantages and disadvantages, and essentially, its own language. Each protocol offers its possible device interoperability and supports a large number of available smart devices. Moreover, there are other factors to consider, such as power consumption, data rate, and cost on which a smart home application can be built.

This Paper proposes a hierarchical Decision Model (HDM) and pair-wise comparison to analyze and evaluate four wireless communication protocols for home automation applications. The model incorporates various criteria associated with the communication protocols such as Interoperability, adoption scale, encryption, range, data rate, network interference, etc to find the best communication protocol for home automation application.

Four communication protocols were used in this model, namely WIFI, Bluetooth, ZigBee, and Z-Wave. The ranking was assigned to these alternatives based on the literature review and incorporated in the model. Results concluded that Z-Wave is the best overall communication protocol. However, Bluetooth protocol is the highest ranked protocol in term of flexibility, and ZigBee is the highest in term of reliability. Also, adoption scale, encryption, and power consumption are the top-ranked criteria from users’ point of view.


This project is only available to students, staff, and faculty of Portland State University

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