Application Layer Protocols and Data Encoding for Constrained - - PowerPoint PPT Presentation

▶

Oct 05, 2022 1.04k likes •1.15k views

Hauke Petersen Computer Systems and Telematics Breakout session on Application Layer Protocols and Data Encoding for Constrained Devices W3C Web of Things Workshop Contents 1) Constrained devices 2) Radio/Network technologies 3) Common

SLIDE 1

Hauke Petersen Computer Systems and Telematics

Breakout session on

Application Layer Protocols and Data Encoding for Constrained Devices

W3C Web of Things Workshop

SLIDE 2

W3C Web of Things Workshop – 26.06.2014 2

1) Constrained devices 2) Radio/Network technologies 3) Common network stacks 4) Feasible alternatives?

SLIDE 3

W3C Web of Things Workshop – 26.06.2014 3

Constrained devices

If we expect billions of devices connected to the IoT by 2020, →someone has to pay for these Considering Moores law, devices get cheaper instead of more powerful We expect a vast amount of devices in the IoT to be (very) constrained.

SLIDE 4

W3C Web of Things Workshop – 26.06.2014 4

Constrained devices

1-2 GB > 4 GB ~ 2 GB 512 MB 16 KB 96 KB 8 KB ~ 16 GB

SLIDE 5

W3C Web of Things Workshop – 26.06.2014 5

Radio/Network Technologies

min 1500 byte ethernet IPv6 IEEE802.11 IEEE802.15.4 Max Frame size: Packet loss: 1500 byte 2304 byte <= 127 byte very low medium high

SLIDE 6

W3C Web of Things Workshop – 26.06.2014 6

Common network stacks

XML HTTP TCP IPv6 EXI CoAP UDP 6LowPAN CBOR CoAP UDP 6LowPAN JSON HTTP TCP IPv6 100s to 1000s

f bytes

100s of bytes 10s of bytes 10s of bytes

SLIDE 7

W3C Web of Things Workshop – 26.06.2014 7

Application Layer Protocols and Data Encoding for Constrained - - PowerPoint PPT Presentation

Breakout session on

Application Layer Protocols and Data Encoding for Constrained Devices

W3C Web of Things Workshop

Contents

1) Constrained devices 2) Radio/Network technologies 3) Common network stacks 4) Feasible alternatives?

Constrained devices

If we expect billions of devices connected to the IoT by 2020, →someone has to pay for these Considering Moores law, devices get cheaper instead of more powerful We expect a vast amount of devices in the IoT to be (very) constrained.

Constrained devices

1-2 GB > 4 GB ~ 2 GB 512 MB 16 KB 96 KB 8 KB ~ 16 GB

Radio/Network Technologies

min 1500 byte ethernet IPv6 IEEE802.11 IEEE802.15.4 Max Frame size: Packet loss: 1500 byte 2304 byte <= 127 byte very low medium high

Common network stacks

XML HTTP TCP IPv6 EXI CoAP UDP 6LowPAN CBOR CoAP UDP 6LowPAN JSON HTTP TCP IPv6 100s to 1000s

100s of bytes 10s of bytes 10s of bytes

Alternatives

HTML XML CoAP JSON EXI CBOR Conventional protocolls / encodings Alternatives?

Which/Should alternatives should be considered in upcoming W3C discussions? Do we see future actions for the W3C?