Optimized method of spectrum sensing in cognitive radio networks

Abstract

Cognitive radio network major functional unit is spectrum sensing. It is one of the main challenges faced by cognitive radio ad hoc network environment. This paper put forward distributed repetitive time slot assignment procedure for SSI distribution on a committed general control passage the algorithms put forward depends on acknowledgment and collision detection scheme. It is facilitated by the network nodes for information reception about collisions regarding SSI packets send using this scheme. The data is used by nodes using a probabilistic approach to modify their operating time slots a parameter is maintained and updated by each instance of a crash probability of switching time slot is depicted. Adaptive and fixed probability depended methodologies are put forward. The procedure put forward are verified to merge to an allocation that is free from collision with probability one if there is an existence of such an allocation. Furthermore, a mathematical expression forth anticipated convergence period is shown. Substantial simulation outcome depicting the quick convergence, magnificent throughput, and less reporting overhead of the put forward time slot allocation procedure were given.