Title :
Adaptive QoS-Based Scheduler for 4G CDMA Wireless Networks
Author :
Baroudi, Uthman ; Mohammed, Yousuf ; Mahmoud, Ashraf
Author_Institution :
Dept. of Comput. Eng., King Fahd Univ. of Pet. & Minerals, Dhahran
Abstract :
In this study, a novel adaptive QoS-based scheduler for WCDMA wireless networks is proposed and investigated. The objective is to maximize the aggregated throughput while satisfying the QoS requirements that is the maximum packet delay. This scheduler shall assign "channels" to contending users based on a set of criteria, namely, the mobile stations\´ estimated transmitter power, user-preset transmission rate and QoS constraint. The scheduler is tested for multimedia traffic under WCDMA platform. We shall compare through system level simulations of the downlink channel the enhancements provided by the proposed scheme with power earliest deadline first (PEDF). The proposed algorithm show outstanding improvement in the total system throughput while minimize the average packet delay
Keywords :
4G mobile communication; channel allocation; code division multiple access; quality of service; scheduling; telecommunication links; 4G CDMA wireless networks; QoS constraint; WCDMA platform; adaptive QoS-based scheduler; channel assignment; downlink channel; mobile stations; multimedia traffic; packet delay; power earliest deadline first; transmitter power; user-preset transmission rate; Adaptive scheduling; Delay estimation; Job shop scheduling; Minerals; Multiaccess communication; Processor scheduling; Scheduling algorithm; Throughput; Traffic control; Wireless networks;
Conference_Titel :
Information and Communication Technologies, 2006. ICTTA '06. 2nd
Conference_Location :
Damascus
Print_ISBN :
0-7803-9521-2
DOI :
10.1109/ICTTA.2006.1684808
