Mukta, Jannatun NoorNishu, Nusrat JahanDipti, Faria IslamSarkar, Md. Arafat2026-08-102026-08-1020262026-01ID 22101170ID 22101729ID 22101914https://hdl.handle.net/10361/28878This thesis is submitted in partial fulfillment of the requirements for the degree of Bachelor of Science in Computer Science, 2026.Cataloged from PDF version of thesis.Includes bibliographical references (pages 85-90).In modern communication systems, maintaining confidentiality, integrity, and availability plays a vital role in protecting information against people who aim to exploit vulnerabilities. Traditional radio communication protocols are reliable, but they lack robust security mechanisms, which causes data theft by interception and data tampering. Radio frequencies are crucial for emergencies, but are not reliable for transmitting confidential information without encryption, and Blockchain technologies are implemented in Radio Access Networks (B-RAN), but are still widely unexplored in radio systems. In this aspect, blockchain technologies in radio protocols can help to enhance messaging integrity and security. Our research aims to develop a blockchain-based decentralized communication protocol for amateur radio systems, which is designed to ensure secure and tamper-proof information exchange in real-time.99 pagesen-USAttribution-NonCommercial-NoDerivatives 4.0 InternationalBRAC University theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission.http://creativecommons.org/licenses/by-nc-nd/4.0/Blockchain technologyInformation technologyInformation transmissionInformation securityData tamperingWireless communication systemsTelecommunication protocolsSoftware-defined radioBandwidth-constrained networksLightweight blockchainBlockchains (Databases).Cryptography.Data transmission systems--Security measures.Wireless sensor networks--Security measures.Thesis