Optimizing Low-Latency IoT Gateways

1. Abstract

We present a micro-controller buffer scheme and optimized CoAP protocol configuration built to handle packet drops and latency spikes. The firmware manages power cycles and network mesh retries on solar-powered telemetry units.

2. Introduction

Edge IoT sensors deployed in urban Nigeria operate in environment settings with unstable electricity grids. Telemetry nodes must survive on small batteries coupled with fluctuating solar charging inputs. Standard TCP/IP protocols introduce high connection overheads, leading to buffer overflows during network drops.

3. Firmware Optimization

Our custom firmware utilizes a lightweight RTOS core. We optimize packet structures by implementing delta-encoding on environmental telemetry datasets. When network connections drop, data is serialized into a circular flash memory buffer using a custom wear-leveling algorithm.

4. Experimental Results

Tests on our custom solar nodes demonstrate a 99.8% data preservation rate during simulated 12-hour network outages. Power consumption dropped by 34% through adaptive transmission cycle scaling, extending hardware lifespans under zero-solar conditions.