A Comprehensive Survey of Blockchain Applications in Communication Networks

Blockchain technology, characterized by its distributed ledger system, has revolutionized currency and the global digital economy. Its potential applications extend beyond finance, captivating academia and industry alike. This article delves into the latest advancements in blockchain technology, exploring its innovative state-of-the-art applications in various futuristic communication domains such as the Internet of Things (IoT), cloud computing, security, privacy, artificial intelligence (AI), wireless network optimization, intelligent grids, smart transportation, and more. The article also provides an overview of blockchain's operational principles, including smart contracts and consensus algorithms, highlighting their contributions to decentralization, security, and transparency. Moreover, through statistical analysis of research articles, we identify current challenges and outline future research directions in the field.