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  2. Helium Network - Wikipedia

    en.wikipedia.org/wiki/Helium_Network

    The Helium Network is a decentralized wireless Internet of things (IoT) network using the LoRaWAN system, tied to the cryptocurrency Helium Network Token (symbol HNT). [1] Nodes on the network are generally owned and placed by individuals in their homes or offices, and they are rewarded for their participation in the network in payments of HNT ...

  3. Internal conversion coefficient - Wikipedia

    en.wikipedia.org/wiki/Internal_conversion...

    The Band and Band-Raman calculations assume that the M shell may contribute to internal conversion to a non-negligible extent, and incorporates a general term (called "N+") which takes into account the small effect of any higher shells there may be, while the Rösel calculation works like the Band, but does not assume that all shells contribute ...

  4. Internet of things - Wikipedia

    en.wikipedia.org/wiki/Internet_of_things

    Decentralized Internet of things, or decentralized IoT, is a modified IoT which utilizes fog computing to handle and balance requests of connected IoT devices in order to reduce loading on the cloud servers and improve responsiveness for latency-sensitive IoT applications like vital signs monitoring of patients, vehicle-to-vehicle communication ...

  5. Symbol rate - Wikipedia

    en.wikipedia.org/wiki/Symbol_rate

    In a digitally modulated signal or a line code, symbol rate, modulation rate or baud rate is the number of symbol changes, waveform changes, or signaling events across the transmission medium per unit of time. The symbol rate is measured in baud (Bd) or symbols per second. In the case of a line code, the symbol rate is the pulse rate in pulses ...

  6. Spectral efficiency - Wikipedia

    en.wikipedia.org/wiki/Spectral_efficiency

    The link spectral efficiency of a digital communication system is measured in bit/s/Hz, [2] or, less frequently but unambiguously, in (bit/s)/Hz.It is the net bit rate (useful information rate excluding error-correcting codes) or maximum throughput divided by the bandwidth in hertz of a communication channel or a data link.

  7. IEEE 802.11ah - Wikipedia

    en.wikipedia.org/wiki/IEEE_802.11ah

    Data rates up to 347 Mbit/s are achieved only with the maximum of four spatial streams using one 16 MHz-wide channel. Various modulation schemes and coding rates are defined by the standard and are represented by a Modulation and Coding Scheme (MCS) index value. The table below shows the relationships between the variables that allow for the ...

  8. IEEE 802.15.4 - Wikipedia

    en.wikipedia.org/wiki/IEEE_802.15.4

    IEEE 802.15.4 protocol stack. Devices are designed to interact with each other over a conceptually simple wireless network.The definition of the network layers is based on the OSI model; although only the lower layers are defined in the standard, interaction with upper layers is intended, possibly using an IEEE 802.2 logical link control sublayer accessing the MAC through a convergence sublayer.

  9. Wi-Fi 7 - Wikipedia

    en.wikipedia.org/wiki/Wi-Fi_7

    IEEE 802.11be, dubbed Extremely High Throughput (EHT), is a wireless networking standard in the IEEE 802.11 set of protocols [9] [10] which is designated Wi-Fi 7 by the Wi-Fi Alliance.