Interference Aware Resource Allocation (IARA) in Cognitive Radio Networks
M. Narender Pavan, Sushil Kumar, Gajendra Nayak · 2018
Cognitive radio is treated as an leading edge technology to overcome the problem of spectrum under utilization. It pro-videos a way for dynamic allocation of spectrum among licensed and unlicensed users. In this work, Firstly a metric namely Interference ratio is considered and the Markov model is used to compute the probability of Interference ratio at a particular time instant t. A new Metric named Expected Interference Ratio (EIR) is defined and calculated with the help of interference ratio and probability. An algorithm for channel allocation among unlicensed users has been designed and developed. On the basis of the simulation result and analysis, it is revealed that the designed EIR based technique provides 10% improvement in spectrum utilization as compared to Interference based allocation technique.