A Comprehensive Look at Low Power, Wide Area Networks (LPWAN) | LinkLabs

A Comprehensive Look at Low Power, Wide Area Networks (LPWAN); a whitepaper; LinkLabs; 2017?; 16 pages (2 of content)
Teaser: For ‘Internet of Things’ Engineers and Decision Makers Important People Like You

Promotion

Mentions

  • Low Power, Wide Area Network (LPWAN)
  • Internet of things (IoT)
  • Machine to Machine (M2M)
  • Topologies
    • Mesh
    • Star
  • Energy per symbol
    • Shannon-Hartley Theorem
    • Information Theory
  • Regulations
    • FCC Part 15 (requrement)
    • ETSI (rules)
  • Signal-to-Noise Ratio (SNR)
  • Radio Frequency (RF)
  • Code Division Multiplexing (CDMA)
  • Chirp Spread Sprectum (CSS)
  • Frequency Shift Keying (FSK)
  • LoRaWAN
  • Groupe Speciale Mobile Association (GSMA)
  • Adaptive Data Rate
  • IoT Platform sector
  • Cellular IoT (CIoT) LPWAN.
  • Forking 4G with LTE-M.
  • LoRa, LoRaWAN
  • “clobbered,” a technical term.
  • Band
    • Europe (868 MHz)
      U.S. (915 MHz)
  • MAC
  • SATCOM
  • MTU
  • Ultra Narrowband (UNB) Radio
  • Random Phase Multiple Access (RPMA)
  • BPSK
Definition
  • long range
    10km
  • low power
    Aspirationally: half-a-generation, a decade, ten years.
  • low data rate
    metaphorical inverse of “blazing-fast”

Folklore

  • ZigBee has “trouble” in the 20-30m range; unusable beyond 30m.
  • Star topology is best.
  • LPWAN operate at 140-160 decibels (dB) of total path.
  • Receiver sensitivity
    • LPWAN  is more than -130 dBm
    • [some] other wireless is within -90 to -110 dBm.
  • The 915 MHz band is available only in ⅓ of the world.
    Therefore LPWAN is “not ready”
    There is no globally available band for LPWAN technologies like there is at the 2.4 GHz level (for Bluetooth and WiFi).

Standards

  • 802.11 of IEEE
    • 802.11ac
    • 802.11ad
    • 802.11n
    • 802.11a
    • 802.11g
    • 802.11b
  • 802.15 of IEEE
    • 802.15.4 ZigBee
    • 802.15.4 WPAN
    • 802.15.4k Nwave, Random Phase Multiple Access (RPMA)
    • 802.15.5 WBAN
  • The ‘G of The Telecom Sphere
    • 2G
    • 3G
    • 4G
    • 5G
    • you guessed it … “6G”
  • Bluetooth
    • Bluetooth (Classic)
    • Bluetooth Low Energy (BLE)
  • and
    • RFID
    • NFC

Products

  • Sigfox

    • What Is Sigfox
    • Proprietary
    • Concept
      12-byte packets, 300 baud, BPSK
      message repetition.
      15 byte messages, 10 messages/day up, 4 acknowledgements/day (down).
    • Something about: 2015, protocol upgrade, guaranteed message acknowledgment for up to four messages per day.
    • Scheme
      BPSK, 868 MHz,,915 MHz
  • Nwave
    • Proprietary
      • Capabilites unknown
      • Unpublished, undocumented
    • Scheme
      Ultra Narrowband (UNB) radio, sub-1 GHz ISM bands.
  • Ingenu
    • Proprietary
    • Founder, IEEE 802.15.4k task group
    • Something about: has a MAC concept.
    • Scheme
      Random Phase Multiple Access (RPMA); 2.4GHz
  • Weightless
    • Weightless Special Interests Group (SIG)
      unknown, unproven specifications & capabilities.
    • Concept
      10 year battery life
      2-way communication
    • Three sub-standards.
      • Weightless-W
    • Scheme
      sub-1GHz, unlicensed; in “unused TV spectrum”
  • LoRaWAN
    • LoRa Alliance
      • Specification, request
      • Intellectual Property
        • Semtech
        • with
          • IBM Research
          • Actility.
    • Concept
      Like Sigfox, but different
    • Dependencies
      • Any “code” must b be run off-box “in the cloud.”
      • Requires a “cloud vendor.”
      • Thus, heavy monthly fees for the compute.
        How much would you pay to have “smart light bulb?”
        With a monthly “subscription” and bill presentment?
    • Vendors
      • none
      • Aspiration
        • STMicroelectronics

Referenced

Actualities

Link Labs, 130 Holiday Court, Suite 100, Annapolis, MD 21401,

LinkLabs
130 Holiday Court, Suite 100
Annapolis, MD 21401,
http://www.nwave.io/

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