Performance Analysis of Hybrid Spectrum Sharing in Cognitive Radio Based Wireless Regional Area Network
Humaira Afzal, Muhammad Rafiq Mufti, K. T. Ahmed, S. Ajmal, Muhammad Yousaf · The Nucleus · 2020
Cognitive radio (CR) network is the footstep and essential need of the new wireless emergingtechnologies like the Wireless Sensor Network (WSN), Internet of Things (IoT), Bluetooth, and VehicularAd Hoc Network (VANET). Due to tremendous progress in the number of wireless devices and theirtraffic, large scale usage of these technologies may soon cause a shortage of spectrum as all thesetechnologies use unlicensed bands. So, CR is a vital choice for their survival. In this paper, we addressthe Quality of Service (QoS) parameters related to spectrum sharing among multiple Customer PremisesEquipments (CPEs) in the context of CR based Wireless Regional Area Network (WRAN) using trunkingtheory. For this purpose, an analytical framework is developed to obtain QoS parameters such as trafficintensity, the total number of users in the network, and time to associate with the base station (BS). Fora progressive environment, particularly the increase in the population of WRAN, we also analyzedchannel access time and received signal strength (RSS) for CPEs. Two types of centralized trunked CRsystems: 1) queued and 2) non-queued systems are investigated and this model can be helpful for the BSin scheduling the required number of channels depending upon Grade of Service (GoS) and the totalnumber of users. The numerical results validate our model.