Optimized Asynchronous Node Association in Multi-Mode Multi-Hop Networks with Free-Band Narrowband Communication

Authors: Anand Kumar Singh, Omkar Wagle

DOI: https://doi.org/10.5281/zenodo.15029815

Short DOI: https://doi.org/g88grd

Country: USA

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Abstract: Traditional node allocation mechanisms in multi-mode multi-hop networks rely on sequential node association, leading to significant delays in network formation. This paper proposes an asynchronous randomized transmit association mechanism, wherein nodes transmit association packets in a dedicated transmit subframe, while maintaining a large receive frame to record neighboring node association packets and their respective RSSI values. Unlike conventional methods, our approach eliminates global synchronization requirements by provisioning only a single gateway (GW) with a predefined Node ID of 0, allowing all other nodes to synchronize dynamically upon receiving an acknowledgment (ACK) from the GW. Additionally, to mitigate packet collisions caused by randomized transmissions, a three-channel mechanism is employed during the association phase, ensuring efficient network formation. Simulation results and real-world experiments demonstrate that our method significantly reduces network formation time while maintaining robust connectivity. This study is based on a proprietary protocol and is not related to Zigbee, LoRaWAN, or any standardized wireless protocol.

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Paper Id: 232248

Published On: 2024-04-10

Published In: Volume 12, Issue 2, March-April 2024

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