• Rejitha R
• Praveena. K
• Anjana Asokan
• Sruthi A
• Soumya T

Wireless communication networks are inherently susceptible to eavesdropping due to their open transmission nature, making security a critical concern, particularly in cooperative networks. This study proposes an optimized power allocation framework that integrates jamming and Amplify-and-Forward (AF) relaying to enhance network security. By leveraging the principles of physical layer security and the wiretap channel model, the research introduces a Data Fusion and Tree-Based Clustering (DFTBC) algorithm, which dynamically allocates power resources to minimize eavesdropping risks while ensuring efficient data transmission. The proposed approach is rigorously evaluated against conventional security mechanisms using key performance metrics, including secrecy rate, throughput, and energy efficiency. Experimental results demonstrate that the method significantly improves network security while maintaining optimal performance, striking a balance between resilience and efficiency. These findings offer valuable insights into secure wireless communication strategies, paving the way for advanced security solutions in cooperative networks.

Physical layer security, jamming, cooperative networks, power allocation, secrecy rate, relaying, eavesdropping.

"Optimized Power Allocation and Security Enhancement in Cooperative Wireless Networks Using Jamming ,Amplify and Forward Relaying", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.12, Issue 3, page no.b779-b787, March-2025, Available :http://www.jetir.org/papers/JETIR2503188.pdf

"Optimized Power Allocation and Security Enhancement in Cooperative Wireless Networks Using Jamming ,Amplify and Forward Relaying", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.12, Issue 3, page no. ppb779-b787, March-2025, Available at : http://www.jetir.org/papers/JETIR2503188.pdf