A novel need based free channel selection scheme for cooperative CRN using EFAHP-TOPSIS

Emerging wireless applications needs more spectrums space to tackle the rapid growth of users. Outside of radio band in spectrum will be hard to utilize for data transmissions in terms of hardware requirement. Cognitive radio research considers the Current Spectrum underutilization and provides a better model for next-generation wireless environment. Since, the cognitive radio and its policies violate the static spectrum allocation i.e., Current Wireless networks policy, many challenges are in front of us to accomplish a better cognitive radio wireless environment. One of the major challenges is secure transmission and optimal free channel selection for un-interrupt data transmission. In this article, we have proposed an efficient free-channel selection scheme for improving QoS of Cooperative Cognitive Radio Networks. The proposed model has been derived as an integrated approach by using successful MCDM techniques such as EFAHP and TOPSIS. Also, we have proved the optimality of the proposed integrated technique with other parallel channel selection techniques with various scenarios.(c) 2019 The Authors. Production and hosting by Elsevier B.V. on behalf of King Saud University. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

Automated summary

Emerging wireless applications require more spectrum space to accommodate the rapid growth of users. Cognitive radio technology provides a better model for the next-generation wireless environment. However, it faces challenges in terms of violating current spectrum allocation policies and ensuring secure transmission and optimal channel selection for uninterrupted data transmission.