Title :
Downlink Call Admission Control in Multiservice WiMAX Networks
Author :
Bo Rong ; Yi Qian ; Kejie Lu
Author_Institution :
Univ. of Puerto Rico at Mayaguez, Mayaguez
Abstract :
WiMAX (Worldwide Interoperability for Microwave Access) is a promising technology for last-mile broadband Internet access. In multiservice WiMAX networks, call admission control (CAC) plays a critical role. In this paper, we address CAC problem from the perspectives of both WiMAX service providers and subscribers. Specifically, we formulate CAC as an optimization problem, in which the demands of service providers and subscribers are taken into account. To solve the optimization problem, we develop a utility and fairness constrained greedy revenue algorithm. Simulation results show that the proposed approach has satisfying performance.
Keywords :
Internet; WiMax; broadband networks; greedy algorithms; WiMAX service provider; WiMAX service subscriber; Worldwide Interoperability for Microwave Access; downlink call admission control; greedy revenue algorithm; last-mile broadband Internet access; multiservice WiMAX network; Bandwidth; Call admission control; Data communication; Downlink; Frequency conversion; OFDM; Portable media players; Resource management; Space technology; WiMAX;
Conference_Titel :
Communications, 2007. ICC '07. IEEE International Conference on
Conference_Location :
Glasgow
Print_ISBN :
1-4244-0353-7
DOI :
10.1109/ICC.2007.839