From the course: IoT Foundations: Low-Power Wireless Networking

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Understand key performance metrics

Understand key performance metrics

From the course: IoT Foundations: Low-Power Wireless Networking

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Understand key performance metrics

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- [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…

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