Book Image

Mastering IOT

By : Colin Dow, Perry Lea
Book Image

Mastering IOT

By: Colin Dow, Perry Lea

Overview of this book

The Internet of Things (IoT) is the fastest growing technology market. Industries are embracing IoT technologies to improve operational expenses, product life, and people's well-being. We’ll begin our journey with an introduction to Raspberry Pi and quickly jump right into Python programming. We’ll learn all concepts through multiple projects, and then reinforce our learnings by creating an IoT robot car. We’ll examine modern sensor systems and focus on what their power and functionality can bring to our system. We’ll also gain insight into cloud and fog architectures, including the OpenFog standards. The Learning Path will conclude by discussing three forms of prevalent attacks and ways to improve the security of our IoT infrastructure. By the end of this Learning Path, we will have traversed the entire spectrum of technologies needed to build a successful IoT system, and will have the confidence to build, secure, and monitor our IoT infrastructure. This Learning Path includes content from the following Packt products: Internet of Things Programming Projects by Colin Dow Internet of Things for Architects by Perry Lea
Table of Contents (34 chapters)
Title Page
Copyright
About Packt
Contributors
Preface
Free Chapter
1
The IoT Story
Index

IEEE 802.11 protocols and WLAN


One of the first adopters of the ISM bands that the FCC freed for unlicensed use was the IEEE 802.11 technology. The IEEE 802.11 is a suite of protocols with a rich history and different use cases. 802.11 is the specification defining the Media Access Controller (MAC) and physical layer (PHY) of a networking stack. The definition and specifications are governed by the IEEE LAN/MAN Standards Committee. Wi-Fi is the definition of WLAN based on the IEEE802.11 standards but maintained and governed by the non-profit Wi-Fi Alliance. 

802.11 owes its creation to NCR in 1991 who first developed the wireless protocol as a means of networking cash registers. It wasn't until 1999 when the Wi-Fi Alliance was formed that the technology became ubiquitous and pervasive in the burgeoning PC and notebook market. The original protocol is vastly different than modern 802.11 b/g/n/ac protocols. It only supported a 2 Mbps data rate with forward error correction.

The success of IEEE802...