Athar IkhlaqFA18-RCS-029LHR TP 6417Dr. Amjad Ali2026-02-132020https://repository.cuilahore.edu.pk/handle/123456789/1522In this astonishingly growing technological era, wireless multimedia applications are increasing exponentially based on these technological advancements. Therefore, wireless multimedia traffic needs a spectrum for transmission. Radio Spectrum is Fixed and used statically worldwide. Cognitive radio in wireless multimedia networks has gained popularity over the past few years because of reducing the scarcity barrier by sensing the radio spectrum. This mechanism provides opportunities to Secondary Users (SUs) to utilize the unused bandwidth of the Primary Users (PUs) licensed spectrum over the Cellular Cognitive Radio Networks (CCRNs). However, multimedia applications demand stringent Quality of Service (QoS) for seamless Communication. The unused radio spectrum is dynamically available with location and time-dependencies. These dependencies starkly affect channel reliability (i.e., the channel's ability to serve the particular SU) in terms of QoS parameters. In this research, we have proposed a non-cooperative game theory-based Call Admission framework that is allocating resources to the admitted calls based on their desired required quality of services. For this purpose, the mechanism does appropriate channel assignment as per the SUs request for efficient resource utilization ensuring seamless multimedia transmissions over WCCRNs. The algorithm is providing a suitable channel selection for the maximum QoS-based spectrum utilization. The system guarantees the QoS defined parameters for multimedia transmissions so that the appropriate channel will be assigned to the SU based on its desired QoS requirements. Due to the opportunistic behavior, i.e., the dynamicity in the availability of the resources, MSU has to utilize the best suitable and available resource at the time of request entertainment. This behavior of the radio spectrum availability is due to the PU priority and we have tackled it by applying the non-cooperative mechanism. For each request, 4 actions have been provided by this theory, either the request will have what it demands or it will be provided with a greater one to ensure quality. If these 2 cases failed in entertaining the request, then the system will check for any available resource with a lower capacity but the satisfactory quality of services level in 3rd case, and assign it to the enrolled request. If none of these cases is possible then the enrolled request is simply discarded in case 4, as the system has no resources to entertain the respective request. Once a channel is assigned to a specific request against any of 3 cases, the system will start checking for primary user arrival. if detected, the allocated channel is made vacant and the transmission gets suspended. If primary user interference is not detected then the request will continuously transmit data until completion. The suspended request is entertained at priority next time to reduce the handoff rate. We have compared our results with the already available scheme in which they have used the bidding mechanism to allocate resources. For the proposed system evaluation, we have used the fitness function to elaborate the results gathered by the proposed system in terms of entertaining the requests as per their demand. The simulation environment has shown the results that the proposed system has outperformed the bidding technique to entertain more QoS-based requests.enDr. Amjad AliFA18Department of Computer ScienceComputer ScienceSecondary Users (SUs)Cellular Cognitive Radio Networks (CCRNs).Call Admission and Channel Assignment Framework Ensuring QoS for Multimedia Cellular Cognitive Radio NetworksThesis