@article{article_415734, title={Performance Analysis of Slotted Aloha Protocol in Wireless Cognitive Radio Networks}, journal={Balkan Journal of Electrical and Computer Engineering}, volume={3}, pages={248–251}, year={2015}, author={Bayrakdar, Muhammed Enes and Çalhan, Ali}, keywords={Cognitive radio,delay analysis,slotted Aloha}, abstract={<p>With the growing use of frequency based services </p> <p>and devices, the cognitive radio network has become an </p> <p>important technology for the future of wireless networks. </p> <p>However, the number of frequency based network applications </p> <p>for fixed and mobile devices both in licensed, and unlicensed </p> <p>networks also shows a significant increase. In addition to </p> <p>frequency based applications; for efficient use of spectrum in </p> <p>cognitive radio networks, characteristics of medium access </p> <p>techniques is utilized. Among these medium access techniques, </p> <p>slotted Aloha technique is among the most preferred. In our </p> <p>study, simulation of a cognitive radio network environment that </p> <p>consists of primary and secondary users utilizing slotted Aloha </p> <p>medium access technique is performed. The simulation of </p> <p>designed network environment is carried out by using Riverbed </p> <p>software. Upon making end to end delay analysis of the designed </p> <p>network, the results of maximum number of users that could be </p> <p>supported in cognitive radio networks utilizing slotted Aloha </p> <p>technique is observed. </p>}, publisher={MUSA YILMAZ}