Title :
A Utility-Based Uplink Scheduling Scheme for Multiple Services in CDMA Systems
Author :
Li, Wenjun ; Chen, Ming ; Cao, Ye
Author_Institution :
Lab. of Nat. Mobile Commun. Res., Southeast Univ., Nanjing
Abstract :
In this paper, a new utility-based uplink scheduling scheme for multiple services in CDMA systems is proposed. The scheduling criterion is to maximize the system utility which is the weighted sum of all user utilities. The weights of the users reflect their QoS levels and fairness requirements. The constraint conditions of the variables in the system utility function are obtained by the uplink transmission restrictions of all users in a CDMA system. A low-complexity approximate algorithm is proposed to solve the optimization problem which is actually equivalent to a 0-1 programming problem. The simulation results show that this algorithm has acceptable performance.
Keywords :
code division multiple access; quality of service; radio links; scheduling; CDMA systems; QoS; low-complexity approximate algorithm; multiple services; system utility function; utility-based uplink scheduling scheme; Data communication; Interference; Laboratories; Mathematical model; Mobile communication; Multiaccess communication; Proposals; Resource management; Scheduling algorithm; Wireless communication;
Conference_Titel :
Communications and Networking in China, 2006. ChinaCom '06. First International Conference on
Conference_Location :
Beijing
Print_ISBN :
1-4244-0463-0
Electronic_ISBN :
1-4244-0463-0
DOI :
10.1109/CHINACOM.2006.344684
