Impacts of blockchain in software‐defined Internet of Things ecosystem with Network Function Virtualization for smart applications: Present perspectives and future directions. - Rahman, Anichur; Islam, Jahidul; Kundu, Dipanjali; Karim, Razaul; Rahman, Ziaur; Band, Shahab S.; Sookhak, Mehdi; Tiwari, Prayag; Kumar, Neeraj (International Journal of Communication Systems, 2025)