The Emergence of Quantum Communication in Enhancing Wireless Sensor Network Security

Wireless sensor networks (WSNs) are being used more often in important settings, which makes them easy targets for attacks such as eavesdropping, node capture, and man‑in‑the‑middle. Conventional cryptography relies on hard mathematical problems, but new quantum computers could break those methods. This project looks at adding quantum communication ideas—especially Quantum Key Distribution (QKD)—to make WSN security stronger. By using basic quantum rules like the no‑cloning theorem and entanglement, we can create and share secret keys even on tiny, low‑power sensor nodes. We built a simulation that mixes quantum and classical links: quantum links handle the safe key exchange, while ordinary links carry the regular data. We measure key‑generation rate, quantum

bit error rate (QBER), energy use, and overall network throughput. The work also offers practical advice for building strong security protocols that protect sensor networks from both today’s and future quantum attacks, helping create wireless systems that will stay safe over time.

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