Performance Analysis of Hybrid Cognitive Gaussian Relay Channels
Keywords:
Cooperative Hybrid CRN, Capacity, Spectral efficiency, Energy efficiencyAbstract
Since last decade, Cognitive Radio has been the solution for the problem of underutilization of radio spectrum. Resources such as power and spectrum are very limited. Optimization of Resource Allocation (RA) is the most important problem in Cognitive Radio Network (CRN). But due to opportunistic nature of Cognitive Radio Resources(RRs), Pure Cognitive Radio Networks are unreliable in nature. To improve the performance and reliability of the network, Hybrid Cognitive Radio Network is useful.Hybrid CRN jointly utilizes both the licensed and cognitive RRs. This paperanalyses the performance of Hybrid Cognitive Relay network under AWGN and Rayleigh fading channels. The performance metrics such as Capacity, Energy efficiency and Spectral efficiency are formulated and numerical simulations are performed. This analysis is helpful in determining the Capacity for optimum usage of power and bandwidth.
Since last decade, Cognitive Radio has been the solution for the problem of underutilization of radio spectrum. Resources such as power and spectrum are very limited. Optimization of Resource Allocation (RA) is the most important problem in Cognitive Radio Network (CRN). But due to opportunistic nature of Cognitive Radio Resources(RRs), Pure Cognitive Radio Networks are unreliable in nature. To improve the performance and reliability of the network, Hybrid Cognitive Radio Network is useful.Hybrid CRN jointly utilizes both the licensed and cognitive RRs. This paperanalyses the performance of Hybrid Cognitive Relay network under AWGN and Rayleigh fading channels. The performance metrics such as Capacity, Energy efficiency and Spectral efficiency are formulated and numerical simulations are performed. This analysis is helpful in determining the Capacity for optimum usage of power and bandwidth.
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