Performance Improved Graph Based Scheduling Algorithm for Infrastructure based Cognitive Radio Networks
K. P. Vijayakumar, P. Ganeshkumar, Mahalingam Anandaraj · 2013
This paper focuses on cognitive radio network (CRN), in which a group of nodes communicate over a shared wireless medium with a limited bandwidth. Here frequency channel for transmission of primary radio network (PRN) which is the legacy network will be shared to the secondary users (SU). Whenever resources are shared there exist a strong need of scheduling and this guarantees maximum spectrum utilization of the serviced SUs. In addition to this we need power control too to keep transmission power in the network at the minimum level required to achieve SINR for reliable communications and restrict the co-channel interference to other transmissions there by it guarantees only acceptable interference to the primary user (PU). So we need an approach to have a maximum utilization of the frequency channel