stem/IOT/Networking
andy 3606944190 vault backup: 2023-06-08 17:52:08
Affected files:
.obsidian/graph.json
.obsidian/workspace-mobile.json
.obsidian/workspace.json
Food/Meal Plan.md
Lab/Linux/Alpine.md
Lab/Linux/KDE.md
Lab/Scratch Domain.md
Lab/Windows/Active Directory.md
Languages/Spanish/README.md
Languages/Spanish/Spanish.md
Money/Accounts.md
Money/Monthly/23-04.md
Money/Monthly/23-05.md
Money/Monthly/23-06.md
Projects/Mixonomer.md
Projects/NoteCrawler.md
Projects/Projects.md
Projects/README.md
Projects/Selector.md
Projects/To Do App.md
Projects/img/selector-arch.png
STEM/AI/Classification/Supervised/SVM.md
STEM/AI/Neural Networks/CNN/FCN/Super-Resolution.md
STEM/AI/Neural Networks/CNN/GAN/GAN.md
STEM/AI/Neural Networks/CNN/GAN/cGAN.md
STEM/AI/Neural Networks/CNN/Interpretation.md
STEM/AI/Neural Networks/Deep Learning.md
STEM/AI/Neural Networks/MLP/MLP.md
STEM/AI/Neural Networks/Properties+Capabilities.md
STEM/AI/Neural Networks/RNN/Representation Learning.md
STEM/AI/Pattern Matching/Markov/Markov.md
STEM/AI/Searching/Informed.md
STEM/AI/Searching/README.md
STEM/AI/Searching/Searching.md
STEM/AI/Searching/Uninformed.md
STEM/CS/Languages/Javascript.md
STEM/CS/Languages/Python.md
STEM/CS/Languages/dotNet.md
STEM/CS/Resources.md
STEM/IOT/Cyber-Physical Systems.md
STEM/IOT/Networking/Networking.md
STEM/IOT/Networking/README.md
STEM/IOT/Software Services.md
STEM/img/cyberphysical-social-data.png
STEM/img/cyberphysical-system-types.png
STEM/img/cyberphysical-systems.png
STEM/img/depth-first-cons.png
STEM/img/depth-first.png
STEM/img/iot-mesh-network.png
STEM/img/iot-network-radar.png
STEM/img/iot-network-types 1.png
STEM/img/iot-network-types.png
STEM/img/markov-start-end-matrix.png
STEM/img/markov-start-end-probs.png
STEM/img/markov-start-end.png
STEM/img/markov-state-duration.png
STEM/img/markov-state.png
STEM/img/markov-weather.png
STEM/img/search-bidirectional.png
STEM/img/search-breadth-first.png
STEM/img/search-lim-goal.png
STEM/img/search-lim1.png
STEM/img/search-lim2.png
STEM/img/search-lim3-2.png
STEM/img/search-lim3.png
STEM/img/search-lim4.png
STEM/img/searching-graph-tree.png
STEM/img/searching-graph.png
Work/Freelancing.md
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..
Networking.md vault backup: 2023-06-08 17:52:08 2023-06-08 17:52:09 +01:00
README.md vault backup: 2023-06-08 17:52:08 2023-06-08 17:52:09 +01:00

#net

Gateway

  • Connects IoT devices to internet
  • Operator deployed
    • LTE etc
  • Self-deployed
    • Wi-Fi

Roles

  • Machine-to-machine connections
    • Cheaper telecoms cost
    • Cheaper hardware
      • Not everything has to be LTE connected
    • Simpler config
  • Translate protocols between IoT and internet
  • Processing data
    • Encrypting, filtering, consolidating
  • Boundary between networks
    • Security

Network Module

  • 802.15.4 only a channel
    • End-to-end provided by network module
  • Multi-hop wireless network
    • Wireless sensor networks (WSN)
    • Wireless mobile ad hoc networks (MANET)
    • Wireless mesh network (WMN)
    • Vehicular ad hoc network (VANET)

Roles

  • Management
    • Packet
      • Adapting size and format
    • Address
      • Adapting and/or resolving addresses
    • Device
      • Joining/leaving of nodes
    • Service
      • Add-ons such as security
  • Operational
    • Route discovery & maintenance
    • Packet forwarding

Performance

  • Power consumption
    • Limited supply
    • Significant power in communications
  • Network Lifetime
    • Duration of proper operation
    • Before no longer provides services
      • When a node fails
    • Design-time
      • Design deployment that will last
    • Run-time
      • Dynamic operation to conserve energy usage
      • All layers
        • App
          • Consolidating data
          • Adaptive frequency for data grouping
        • Network
          • Avoid aggressive topology maintenance
        • MAC
          • Duty-cycle MAC to keep radio asleep
        • Physical
          • Power level control

Issues

  • Bottleneck
    • One node relaying lots of data
    • Bad placement of gateway

  • Low power devices
  • Multi-hop