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Paper available at: https://www.mdpi.com/1424-8220/20/7/1912

Goal

The goal is to design a chip in which all oscillating circuits are inside the chip itself, and consists of different types of resonating electronic circuits (e.g., LC resonator, RC delay-based oscillator, ring oscillators).

Highlights

  • None of the Michigan Micro Mote (3M) versions are standards-compliant, i.e., they cannot
    communicate with off-the-shelf radios.

  • The port of OpenWSN on SCµM does not come with link-layer security, nor secure joining. This
    is because this version of SCµM does not come with an AES-128 cipher.

New terms

  • TSCH (Time Synchronized Channel Hopping) is a channel access method for shared-medium networks.

    It is used by Low-Power devices to communicate using a wireless link. It is designed for low-power and lossy networks (LLNs) and aims at providing a reliable Media access control layer.

    TSCH can be seen as a combination of Time division multiple access and Frequency-division multiple access mechanisms as it uses diversity in time and frequency to provide reliability to the upper network layers.

  • IEEE 802.15.4 is a technical standard which defines the operation of a low-rate wireless personal area network (LR-WPAN).

  • CoAP (Constrained Application Protocol) is a specialized Internet application protocol for constrained devices, as defined in RFC 7252. It enables those constrained devices called "nodes" to communicate with the wider Internet using similar protocols.

  • RPL (Routing Protocol for Low-Power and Lossy Networks) is a routing protocol for wireless networks with low power consumption and generally susceptible to packet loss. It is a proactive protocol based on distance vectors and operates on IEEE 802.15.4, optimized for multi-hop and many-to-one communication, but also supports one-to-one messages.

  • ASC (Automatic Squelch Control) is a function used to reduce background noise when there is no communication. It is an adjustment which must be made precisely and repeated frequently in order to avoid reducing the reception capacities of the radio.

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