As a data communication system, an IoT network needs to meet performance objectives measured by performance metrics. Key performance metrics in terms of bit rate, throughput, latency, packet loss, and power consumption are discussed. The means of conducting the performance measurements are briefly introduced.
- [Narrator] Let's see some key performance metrics…of our wireless network.…There are bit rate, throughput, latency,…packet delay variation, and packet loss.…Bit rate is measured as a number of bits…transmitted per second, expressed as bps,…or bits per second.…There are some commonly-used units listed here:…kbps, meaning kilobits per second,…Mbps, meaning megabits per second,…and Gbps, meaning gigabits per second.…
Basically, every network needs to support…a certain set of data rates,…which values are usually calculated, or measured,…based on the physical layer features and the schemes used.…In a ZigBee network, we can transmit data…in a rate up to 250 kilobits per second.…Throughput is measured as the actual amount of data…transmitted per unit of time.…Throughput definition is specific to a protocol…running at one OSI layer,…so here we specify the throughput…into network throughput and application-level throughput.…
Network throughput is measured as the amount of data…transmitted per unit of time over a communication path…
Author
Ryan Hu
Released
4/19/2017Ryan Hu begins by introducing wireless networking for IoT, and going over the basics of wireless communication and wireless networking. Next, he presents and compares the underlying wireless networking technologies in terms of system architectures, communication paradigms, performance, and use cases. Then, he explains how to integrate various networking technologies into an IoT system. To wrap up, Ryan discusses the use of low-power wireless networking in a typical lighting control system for both smart home and smart city environments.
- Low-power wireless networking use cases
- Advantages and disadvantages of wireless networking for IoT applications
- Wireless: Communication, networking, topologies, and architectures
- Determining the power consumption on a wireless network for IoT
- Identifying security risks
- Addressing risks in the key architectural elements
- Reviewing low-power IoT data communication paradigms
Skill Level Intermediate
Duration
Views
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Introduction
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Welcome1m 41s
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1. Overview of Wireless Networking for IoT
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2. Low-Power IoT Wireless Network Basics and Architectures
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Wireless networking basics7m 23s
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IoT network security8m 3s
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3. Low-Power IoT Data Communication Paradigms
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Performance measurement4m 28s
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4. Energy-Harvesting-Based Wireless Networking Technologies
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Install EnOcean DolphinView1m 50s
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5. Low-Power Wireless Personal-Area Networking Technologies
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6. Low-Power Wide-Area Networking Technologies
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7. Integrating Wireless Networking Technologies into an IoT System
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8. Case Studies
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Conclusion
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Next steps1m 8s
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Video: Understand key performance metrics