Abstract
In this paper, a distributed spectrum access algorithm for Cognitive Wireless Network (CogWN) is proposed. The objective is to maximize the number of admitted Secondary Users (SUs) under the constraint of Interference Temperature (IT) at Measurement Point (MP), while providing AQP (Active users' Quality of service Protection) at the same time. Here AQP means that the Signal to Interference plus Noise Ratios (SINRs) of all active SUs will not fluctuate below their predetermined thresholds during the process of new SUs' spectrum access. In addition, an alarm mechanism is introduced into CogWN, which ensures the IT at MP is always below the predefined threshold, so that the communication of primary system is protected from being affected by SUs. Finally, the proposed algorithm is evaluated through extensive simulations, and the results show that it has a better performance than the traditional algorithm.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
