Abstract
Spectrum sensing and spectrum allocation are the two important concerns of a cognitive radio network (CRN). The energy detection approach uses a dual estimation in sensing of spectrum availability. The energy detection considers the channel as a noised or signals with noise as two probable conditions in spectrum sensing. Here, the estimation is defined by the threshold limit defined by the estimate under a prior interference level. The estimate is however not optimal in the current channel estimate due to the dynamic nature of the channel. The coordinative property of the channel has a greater impact on the estimation performance. To develop an estimation approach using the channel characteristic a new weight updation using the SNR metric is proposed. The suggested approach defines the constructive signal estimation under coordinative and non-coordinative channel conditions. The proposed approach ROA defines a new weight updation giving faster converges, higher throughput, and higher accuracy in estimates.
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Arikatla, J.L., Swamy, G.N. & Prasad, M.N.G. Dynamic Coordinative Estimation Enhancement in Cognitive Radio Network. J Ambient Intell Human Comput 13, 1125–1136 (2022). https://doi.org/10.1007/s12652-021-02935-1
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DOI: https://doi.org/10.1007/s12652-021-02935-1