andy
3606944190
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
76 lines
1.7 KiB
Markdown
76 lines
1.7 KiB
Markdown
#net
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# Gateway
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- Connects IoT devices to internet
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- Operator deployed
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- LTE etc
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- Self-deployed
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- Wi-Fi
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## Roles
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- Machine-to-machine connections
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- Cheaper telecoms cost
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- Cheaper hardware
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- Not everything has to be LTE connected
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- Simpler config
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- Translate protocols between IoT and internet
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- Processing data
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- Encrypting, filtering, consolidating
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- Boundary between networks
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- Security
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# Network Module
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- 802.15.4 only a channel
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- End-to-end provided by network module
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- Multi-hop wireless network
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- Wireless sensor networks (WSN)
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- Wireless mobile ad hoc networks (MANET)
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- Wireless mesh network (WMN)
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- Vehicular ad hoc network (VANET)
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## Roles
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- Management
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- Packet
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- Adapting size and format
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- Address
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- Adapting and/or resolving addresses
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- Device
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- Joining/leaving of nodes
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- Service
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- Add-ons such as security
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- Operational
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- Route discovery & maintenance
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- Packet forwarding
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# Performance
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- Power consumption
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- Limited supply
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- Significant power in communications
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- Network Lifetime
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- Duration of proper operation
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- Before no longer provides services
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- When a node fails
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- Design-time
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- Design deployment that will last
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- Run-time
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- Dynamic operation to conserve energy usage
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- All layers
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- App
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- Consolidating data
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- Adaptive frequency for data grouping
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- Network
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- Avoid aggressive topology maintenance
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- MAC
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- Duty-cycle MAC to keep radio asleep
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- Physical
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- Power level control
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## Issues
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- Bottleneck
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- One node relaying lots of data
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- Bad placement of gateway
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- Low power devices
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- Multi-hop |