tailieunhanh - Báo cáo hóa học: " Research Article Call Admission Control Jointly with Resource "

Tuyển tập các báo cáo nghiên cứu về hóa học được đăng trên tạp chí hóa hoc quốc tế đề tài : Research Article Call Admission Control Jointly with Resource | Hindawi Publishing Corporation EURASIP Journal on Wireless Communications and Networking Volume 2010 Article ID 740575 10 pages doi 2010 740575 Research Article Call Admission Control Jointly with Resource Reservation in Cellular Wireless Networks Aytul Bozkurt 1 Rafet Akdeniz 2 and Erdem Ucar3 1 Department of Electronics Technology Namik Kemal University 59860 Tekirdag Turkey 2 Department of Electronics and Telecommunication Engineering Namik Kemal University 59860 Tekirdag Turkey 3 Department of Computer Engineering Trakya University 22100 Edirne Turkey Correspondence should be addressed to Aytul Bozkurt abozkurt@ Received 9 November 2010 Accepted 25 December 2010 Academic Editor Nicholas Kolokotronis Copyright 2010 Aytul Bozkurt et al. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. To efficiently utilize the total resources and to serve mobile users demanding for different types of service system resource utilization of these services should be considered and efficient resource management techniques should be developed. In this paper we propose a new call admission control CAC scheme jointly with resource management by considering the two service types prioritized calls and nonprioritized calls. Proposed scheme limits the new and handoff prioritized and non-prioritized call arrivals according to call-level quality of service QoS requirements. By searching algorithm admission parameters are obtained optimally and required QoS are guaranteed. Due to high priority of the prioritized calls the admittance of non-prioritized calls into channel is restricted while prioritized calls are admitted as long as there is sufficient bandwidth. To evaluate the performance of the proposed CAC scheme we have compared the numerical results from the analytical model with those of New Call Bounding .