Multi‐objective spectrum assignment in heterogeneous cognitive radio networks for internet of things

FAROOQ, Umer and UL HASAN, Najam (2024). Multi‐objective spectrum assignment in heterogeneous cognitive radio networks for internet of things. International Journal of Communication Systems, 37 (7).

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<jats:title>Summary</jats:title><jats:p>Internet of Things (IoT) applications have massively increased in the last few years. Future‐generation IoTs are going to be massive in number, heterogeneous in nature, and extremely demanding in terms of computation and communication requirements. Therefore, effective techniques are needed to optimize the use of scarce communication resources. This work proposes a novel multi‐objective framework to investigate the channel assignment problem in cognitive radio network (CRN)‐based IoT applications. The multi‐objective optimization framework comprises three objective functions. The first objective aims to maximize the overall system throughput fairness, the second objective aims to maximize the overall system residual energy, and the third objective aims to increase the user satisfaction level by maximizing the overall priority index. The problem of channel assignment is modeled and solved using Mixed Integer Linear Programming (MILP) and ‐constraint technique. This technique generates a set of Pareto efficient solutions, and an optimal solution among these solutions is selected using a fuzzy logic decision mechanism. Moreover, power level selection is incorporated by solving the problem multiple times for different power levels and obtaining a preferred solution for each power level. The simulations are conducted to unveil an interesting trade‐off between the conflicting system design objectives, that is, the overall throughput and the overall residual energy while incorporating the significance of primary user (PU) activity when preforming channel assignment in CRN.</jats:p>

Item Type: Article
Uncontrolled Keywords: 0805 Distributed Computing; 0906 Electrical and Electronic Engineering; 1005 Communications Technologies; Networking & Telecommunications; 4006 Communications engineering; 4606 Distributed computing and systems software
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SWORD Depositor: Symplectic Elements
Depositing User: Symplectic Elements
Date Deposited: 12 Apr 2024 11:59
Last Modified: 12 Apr 2024 11:59

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