Opportunistic Networks: Fundamentals, Applications and Emerging Trends

Explores various facets of opportunistic networks (OppNets), which are dynamic, infrastructure-less wireless networks leveraging mobile device interactions for data transfer, often via a "store-carry-forward" mechanism. It details different routing protocols, categorizing them by approaches like replication-based (e.g., Epidemic, Spray and Wait), social-based (e.g., Bubble Rap, SCORP), and context-aware methods, along with their energy efficiency and performance metrics like delivery ratio and average latency. The sources also investigate mobility models influencing OppNet performance, ranging from random-based to geographical restriction-based and social network-based patterns, and propose novel schemes like CORMAN for mobile ad hoc networks. A significant focus is placed on security and privacy challenges within OppNets, particularly in vehicular ad hoc networks (VANETs), and introduces a blockchain-leveraged incentivization scheme (BlockCent) to promote cooperation among nodes.

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