Time Slotted Channel Hopping (TSCH) enables highly reliable and ultra-low power wireless networking, and is at the heart of multiple industrial standards. It has become the de facto standard for industrial low-power wireless solutions, and a true enabler for the Industrial Internet of Things. In a TSCH network, all nodes remain tightly synchronized by periodically communicating with one another...

802.15.4 security protects against the replay, injection, and eavesdropping of 802.15.4 frames. A core concept of 802.15.4 security is the use of frame counters for both nonce generation and anti-replay protection. While being functional, frame counters (i) cause an increased energy consumption as they incur a per-frame overhead of 4 bytes and (ii) only provide sequential freshness. The Last Bi...

This paper presents an approach to terrain synthesis from minimal-detail userprovided heightmaps. There is no assumption regarding the level of detail provided, in order to allow users without access to powerful heightmap tools and/or resources to generate useable terrain based on a self-provided crude feature plan. We present the issues stemming from a lack of detail in user input, notably sha...

In the Industrial Internet of Things (i.e., IIoT), standardization open technologies and protocols has achieved seamless data exchange between machines other physical systems from different manufacturers. At MAC sublayer, industry-standard IEEE 802.15.4 Time Slot Channel Hopping (TSCH) Deterministic Synchronous Multi-channel Extension (DSME) show promising properties for high adaptability dynam...

6TiSCH (IPv6 over the TSCH mode of IEEE 802.15.4e) is a key enabler Industrial Internet Things. A network an IPv6 wireless multi-hop built (Timeslotted Channel Hopping) links. medium access 802.15.4 which provides deterministic properties, and increases robustness against external interference. scheduling function computes communication schedule determines performance indicators such as end-to-...

SPES-2 is a sensing board for room-level monitoring in a home environment. It constitutes a vital modality of the SPHERE architecture: a multi-modal sensing platform for healthcare in a residential environment. SPES-2 uses an optimised implementation of the IEEE 802.15.4-2015 TSCH (Time-Slotted Channel Hopping) standard to operate efficiently and reliably in unknown environments for more than o...

As the Internet of Things is gaining momentum, low-power communication technologies proliferate. In this paper, we focus on Bluetooth Low Energy (BLE) and IEEE 802.15.4 (CSMA, Low-power listening, and TSCH), and advocate low-power IPv6 for interoperability between the two. We perform a thorough experimental comparison of their link-layer performance, both in idle radio environment and when faci...