Notes - MIECT
Comunicações Móveis
Notes - MIECT
Comunicações Móveis
  • Comunicações Móveis
  • The Communication Network
    • The Phone Network
    • The Internet
    • The Mobile Network
  • Wireless Systems
    • Wireless Systems
    • Mobile Hassles
    • Device Issues
    • Why is mobile hard?
  • Physical Layer
    • Classifications of Transmission Media
    • Wireless
    • Radio Transmission Impairments
    • Time-Domain View
    • Propagation Degrades
    • Propagation Mechanisms
    • Redundancy
  • Satellite Networks
    • Satellites
    • Satellite Networks
      • GEO - Geostationary Orbit
      • NGSO - Non Geostationary Orbits
    • Routing
  • Mobile Networks
    • Connections and structures
    • Cell
    • Wireless networks
    • 802.11
    • Infrastructure vs Ad Hoc Mode
    • Data Flow Examples
    • Physical layer
    • MAC
      • Multi-bit Rate
      • MAC Layer
      • Carrier Sense Multiple Access
      • Some More MAC Features
    • How does a station connect to an Access Point?
      • IEEE 802.11 Mobility
    • How to extend range in Wi- Fi?
      • IEEE 1905.1 standard, Convergent Digital Home Network for Heterogeneous Technologies
  • Bluetooth, Wireless Sensor Networks, ZigBee
    • Bluetooth
      • Piconets
        • Device Discovery Illustrated
        • Paging
      • Scatternet
      • Bluetooth Stack
        • Baseband in Bluetooth
        • Adaptation protocols
      • Profiles and security
        • Bluetooth
        • Link keys in a piconet
      • 802.15.x
        • Bluetooth Networking Encapsulation Protocol
        • Bluetooth 4.0: Low Energy
          • Device Modes
          • Link Layer Connection
          • How low can the energy get?
          • BLE and GAP
    • Wireless Sensor Networks
      • MIoT and HIoT are different
      • Types of Wireless Networks
      • Wireless Sensor Network
      • 802.15.4 and Zigbee
      • 802.15.4 / ZigBee Architecture
        • IEEE 802.15.4 MAC
        • Channel Access Mechanism
        • Association procedures
        • ZigBee
        • ZigBee and BLE
  • Cellular Networks
    • Wireless cellular network
    • Wide Area Wireless Sensor Networks (WWSN)
      • LTE-M
      • NB-IoT
      • Spectrum & Access
      • Cellular technologies
      • LoRa
      • The Things Network
    • Technological waves
    • 1G - Mobile voice
    • 2G - Global System for Mobile Communications (GSM)
    • 2.5G - General Packet Radio Service (GPRS)
    • 3G - Universal Mobile Telecommunication System
      • Multiplexing mechanisms
      • SIP Protocol
      • Services in IMS
    • 4G - Long Term Evolution/Evolved Packet Core (LTE/EPC)
      • Long Term Evolution (LTE)
    • 5G
      • Example of verticals
      • 3GPP Releases detail
      • Technologies
      • New Radio is required
      • System architecture
      • Non-stand Alone (NSA)
      • Networks deployment
      • Protocol stacks
      • Procedures
      • QoS Model
      • Mobility in 5G
      • Distributed cloud: Edge Computing and 5G
      • Slicing
    • 6G
  • Software and Virtualization Technologies in Mobile Communication Networks
    • Network Function Virtualization
    • Management and Orchestration
    • Software Defined Networking
      • How to “direct” the controller?
      • Emulation
      • Programming Protocol-Independent Packet Processors (P4)
    • OpenRAN
    • Multi-access Edge Computing
    • Network Automation
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  • Wi-Fi “extenders”.
  • Mesh
  • Wi-Fi EasyMesh
  1. Mobile Networks

How to extend range in Wi- Fi?

Wi-Fi “extenders”.

Inexpensive.

They set up a new SSID, and forward all traffic to the original SSID.

Multi-hop configurations are possible.

  • Require manual configuration.

Because the original access point and the extender have different SSIDs.

  • Many devices will not automatically connect to whichever is closer.

  • They prefer to maintain connection with the original SSID until that signal disappears.

  • This is, for many mobile users, reason enough to give up on this strategy.

Mesh

Different standards.

  • IEEE 802.11s standard.

    • Focuses on the setup of the mesh networks.

    • Uses a mandatory routing protocol – Hybrid Wireless Mesh Protocol.

    • Mesh Stations can collocate 802.11 AP’s and provide access to the mesh network for 802.11 devices.

    • A Mesh Gateway interconnects the mesh to other non-802 networks.

  • Wi-Fi Alliance standard (a.k.a., “EasyMesh”).

    • Focuses on more “easy” setup of mesh WiFi networks.

      • incorporates parts of the IEEE 1905.1 standard for home networks, which simplifies initial configuration.

    • Specifies that one access point – the one connected to the Internet – will be a “Multi- AP” Controller.

    • the other access points are called Agents.

    • The EasyMesh standard also.

Wi-Fi EasyMesh

WiFi Alliance Certification program that defines multiple access point home and small office Wi-Fi networks that are easy to install and use, self-adapting, and add multi-vendor interoperability.

This technology brings both consumers and service providers additional flexibility in choosing Wi-Fi EasyMesh devices for home deployment.

Wi-Fi EasyMesh uses a controller to manage the network, which consists of the controller, plus additional APs, called agents.

Establishing controllers to manage and coordinate activity among the agents ensures that each AP does not interfere with the other, bringing both expanded, uniform coverage and more efficient service.

EasyMesh specification relies on other standards / specification, either by extending them or simply referencing them.

This includes, most notably:

  • Building on and extending IEEE Standard 1905.1 to configure Wi-Fi access point interfaces.

    • Discovery: how nodes are finding each other and identifying the controller.

    • Push-Button Configuration: to initialize "onboarding" of access points-the process commonly referred to as "meshing".

    • Backhaul communication: Communication between the nodes / access points in the mesh network.

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Last updated 2 years ago