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Technical paper and reference firmware implementation of NEXAL-M2M, a peer-to-peer semantic coordination protocol for LoRa radio networks operating without gateways, servers, or pre-existing infrastructure. Includes the NEXAL-Lite frame specification (128-byte fixed frame with HMAC-SHA256 integrity, hardware-bound node identity, and ULS-224 semantic payload), the Trust-K autonomous trust establishment mechanism with post-reboot resynchronization, and results from six independent field experiments conducted in Buenos Aires, Argentina, demonstrating sustained point-to-point links at 15.9 km using SF7 modulation on ESP32-S3/SX1262 hardware. Applicable to vehicular coordination, autonomous systems, UAVs, maritime, emergency response, critical infrastructure monitoring, and LEO satellite links with physical layer adaptation. Reference firmware released under CC BY-NC-SA 4.0. Related to UODI Protocol, USPTO Provisional 63/993,355.
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Title Title: NEXAL-M2M: A Lightweight Semantic Coordination Protocol for Infrastructure-Free LoRa Networks — Technical Paper and Reference Implementation v1.2
Technical paper and reference firmware implementation of NEXAL-M2M, a peer-to-peer semantic coordination protocol for LoRa radio networks operating without gateways, servers, or pre-existing infrastructure. Includes the NEXAL-Lite frame specification (128-byte fixed frame with HMAC-SHA256 integrity, hardware-bound node identity, and ULS-224 semantic payload), the Trust-K autonomous trust establishment mechanism with post-reboot resynchronization, and results from six independent field experiments conducted in Buenos Aires, Argentina, demonstrating sustained point-to-point links at 15.9 km using SF7 modulation on ESP32-S3/SX1262 hardware. Applicable to vehicular coordination, autonomous systems, UAVs, maritime, emergency response, critical infrastructure monitoring, and LEO satellite links with physical layer adaptation. Reference firmware released under CC BY-NC-SA 4.0. Related to UODI Protocol, USPTO Provisional 63/993,355.
Work type Technical Documentation
Tags firmware, trust-k, heltec, infrastructure-free, anti-sybil, field experiment, nexal, radio, semantic, uodi, iot, embedded, urban, esp32-s3, protocol, drone, m2m, lorawan-free, sx1262, maritime
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Identifier 2603255073683
Entry date Mar 25, 2026, 3:02 AM UTC
License All rights reserved
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Author 100.00 %. Holder Daniel Eduardo Placanica. Date Mar 25, 2026.
Information available at https://www.safecreative.org/work/2603255073683-title-nexal-m2m-a-lightweight-semantic-coordination-protocol-for-infrastructure-free-lora-networks-technical-paper-and-reference-implementation-v1-2
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Registration: 2603255073683
