Hybrid Infrastructure for Enhanced Link Defense Using Quantum Security and Dynamic Channel Hopping

Authors- Sowmiya G, Sophia R, Sindhuja R, T.Dinesh kumar

Abstract-Wireless blockchain networks face increasingly sophisticated jamming attacks that exploit RF vulnerabilities, manifesting as targeted interference, signal manipulation, and consensus disruption attacks. Traditional defense mechanisms, primarily relying on frequency hopping spread spectrum and basic cryptographic protocols, prove insufficient against advanced cognitive jammers and quantum-capable adversaries The framework implements a hybrid consensus protocol that synergizes Proof of Stake with practical Byzantine Fault Tolerance .The system employs a deep learning-based anomaly detection model utilizing a Long Short-Term Memory network architecture .The network activates quantum-aided dynamic channel hopping, leveraging quantum key distribution for secure channel state information exchange and pseudo-random sequence generation .For enhanced scalability, implementation of a novel blockchain sharding mechanism that dynamically partitions the network .The integration of quantum communication principles, specifically BB84 protocol for key distribution and quantum Byzantine agreement, provides information- theoretic security with a key. Signal integrity is maintained through adaptive Rayleigh fading compensation using Maximum Likelihood Estimation and Low-Density Parity Check codes with minimum Hamming distance , ensuring robust error correction in compromised channels. The system exhibits a packet delivery ratio under severe jamming conditions, with quantum bit error rate .Network throughput remains stable of optimal capacity during multi-channel jamming attacks, while the sharding mechanism demonstrates linear scalability .The comprehensive solution establishes new benchmarks for secure wireless blockchain deployments, effectively addressing both current and emerging quantum-era security challenges.

DOI: /10.61463/ijset.vol.13.issue2.204